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01/08<br />

<str<strong>on</strong>g>stories</str<strong>on</strong>g> <strong>on</strong> <strong>hard</strong> <strong>material</strong> <strong>matters</strong><br />

Titanium machining<br />

Substrate, geometry and coating<br />

expertise - a symbiosis Titanium cannot resist.


MaxiMill systems<br />

Space age <strong>material</strong>s cut easy.<br />

Aerospace, Power generating ...<br />

The No.1 soluti<strong>on</strong> for Titanium, Stainless<br />

and High tensile steels.<br />

Double Your Productivity!<br />

Metal Removal Rates 200% Higher<br />

CERATIZIT USA Inc. 5369 Rt. 982 North 15650-0272 Latrobe, Pennsylvania Tel:+1 803 736 1900 E-Mail: info.usa@ceratizit.com


Today, CERATIZIT is already the world-market leader for<br />

carbide products in wood and st<strong>on</strong>e machining as well<br />

as Europe‘s largest supplier for industrial wear parts. The<br />

group is also gaining strength in the USA where we are<br />

catching up in the ranking.<br />

Furthermore, CERATIZIT counts <strong>on</strong> the segments where -<br />

thanks to our expertise – we can achieve the best<br />

customer benefit and growth opportunities. In the<br />

coming years CERATIZIT will focus <strong>on</strong> Cutting Tools and<br />

c<strong>on</strong>sistently implement their multi-channel strategy.<br />

They will c<strong>on</strong>centrate <strong>on</strong> niches and develop exclusive<br />

soluti<strong>on</strong>s for the automotive, engineering, aerospace<br />

and oilfield sectors.<br />

We want to strive for c<strong>on</strong>tinuous organic growth above<br />

average worldwide. Ever since its foundati<strong>on</strong> CERATIZIT<br />

has grown notably quicker than the market. This is how<br />

we want to c<strong>on</strong>tinue, am<strong>on</strong>gst others through targeted<br />

acquisiti<strong>on</strong>s. In this c<strong>on</strong>text new companies have to<br />

adapt to the CERATIZIT group strategically, culturally and<br />

also financially.<br />

With a turnover of approx. 600 milli<strong>on</strong> euros (850 milli<strong>on</strong><br />

US-dollars) the carbide producer ranks am<strong>on</strong>g the TOP<br />

5 worldwide. We are now striving for a turnover of <strong>on</strong>e<br />

billi<strong>on</strong> euros by 2012. In order to reach this ambitious goal<br />

we have several levers that we can activate efficiently.<br />

Pressing ahead with internati<strong>on</strong>alizati<strong>on</strong><br />

CERATIZIT has a str<strong>on</strong>g positi<strong>on</strong> in Central and Eastern<br />

Europe, thus we were able to benefit extraordinarily from<br />

the ec<strong>on</strong>omic growth in Eastern Europe and will be further<br />

extending our success. CERATIZIT is excellently positi<strong>on</strong>ed<br />

in the NAFTA area, which is still the strategically most<br />

important market in the world. We have companies in<br />

the USA and in Mexico where we have been gaining<br />

market shares for years. After the acquisiti<strong>on</strong> of Newcomer<br />

Products last year CERATIZIT has become a ‘household<br />

name’ also in the American Cutting Tool sector.<br />

Latin America for us is an independent market with<br />

high potential. For years the company has achieved<br />

A WORD<br />

FROM THE BOARD<br />

A WORD FROM THE BOARD<br />

double-digit growth rates, and after Eastern Europe and<br />

East Asia, Latin America will remain the growth regi<strong>on</strong><br />

where we will be investing most intensively. East Asia is<br />

at the top of our agenda, as we have companies in the<br />

three most important markets, China, Japan and India<br />

which c<strong>on</strong>tribute in a higher-than-average way to the<br />

group’s growth. We will certainly press ahead with our<br />

efforts in the Asian markets.<br />

“We c<strong>on</strong>sistently optimize our processes”<br />

Rati<strong>on</strong>alizati<strong>on</strong> is always a topic as the cost pressure from<br />

competitors never ceases. This does not however mean<br />

that we are trying to attain the cost structure of our Asian<br />

- namely our Chinese - competitors. And we will also not<br />

be moving our entire producti<strong>on</strong> to low-wage countries<br />

as we obviously want to maintain our high standard with<br />

regard to quality, products and services and above all<br />

our customer proximity. This however does not rule out<br />

producti<strong>on</strong> being transferred in single cases.<br />

“We prefer to be the number 1 in selected segments than the<br />

number 3 overall”, says Board member Wolter.<br />

In the framework of our current project, FOCUS FUTURE,<br />

our aim is to interlock producti<strong>on</strong> and sales, also geographically,<br />

in such a way that the customer‘s requests<br />

are fulfilled as quickly and efficiently as possible. At the<br />

moment this project basically c<strong>on</strong>cerns the West<br />

European producti<strong>on</strong> sites. But the more we grow in Asia<br />

and Latin America, the more we will extend our producti<strong>on</strong><br />

in these regi<strong>on</strong>s to maintain customer proximity.<br />

We want to optimize all the processes which are necessary<br />

to fulfill the customer’s requests. For this purpose we<br />

have to c<strong>on</strong>tinuously increase efficiency in all areas, i.e.<br />

research & development, acquisiti<strong>on</strong>, sales, producti<strong>on</strong><br />

and logistics. CERATIZIT and our employees have already<br />

attained a lead over competitors.<br />

Thierry Wolter<br />

Member of the Executive Board<br />

thierry.wolter@ceratizit.com<br />

03


CONTENTS<br />

03<br />

06<br />

07<br />

08/09<br />

10<br />

11<br />

12/15<br />

16/17<br />

18/19<br />

20<br />

21<br />

22/23<br />

24/25<br />

26/27<br />

28/29<br />

30/31<br />

32/33<br />

34<br />

35<br />

36/37<br />

38/39<br />

41<br />

42/43<br />

A word from the Board<br />

Thierry Wolter<br />

Brovedani SPA / Italy<br />

MaxiClick<br />

Plansee Seminar 2009<br />

- from 25 to 29 May 2009 in Reutte, Austria<br />

Newcomer Products<br />

A CERATIZIT brand<br />

GTP<br />

Part of Plansee Group<br />

MAC cooling set<br />

Dry aluminum wheel machining<br />

Audi Hungaria<br />

Crankshaft machining<br />

Leicht und Müller<br />

Stamping industry<br />

Åkers / Sweden<br />

Roll Machining<br />

MaxiMill HEC<br />

High Efficiency Cutting<br />

MaxiMill HFC<br />

High Feed Cutting<br />

Titanium Machining<br />

CTC5240<br />

Rado<br />

Carbide watch cases<br />

Hilti<br />

Drill manufacturer<br />

HPC 12<br />

High Performance Cutting<br />

BGH Edelstahl<br />

Bar peeling vs. turning<br />

Hunting Oilfield Services<br />

Netherlands<br />

Coated CBN<br />

World innovati<strong>on</strong> from CERATIZIT<br />

OvalFlex<br />

The oval all-rounder for aluminum wheels<br />

Austria Alu-Guss<br />

Rim producti<strong>on</strong> with CERATIZIT tools<br />

Titan Zrinski Tehnologija<br />

- has found the right tooling partner<br />

Water cutting technology<br />

Divisi<strong>on</strong>s:<br />

Cutting tools, wear parts<br />

1<br />

2<br />

3<br />

1<br />

2<br />

imp:act 01/08


3<br />

IMPRESSUM<br />

IMPRESSUM<br />

imp:act, <str<strong>on</strong>g>stories</str<strong>on</strong>g> <strong>on</strong> <strong>hard</strong> <strong>material</strong> <strong>matters</strong><br />

Customer magazine from the CERATIZIT<br />

Group<br />

Published twice a year<br />

Publisher:<br />

CERATIZIT S.A.<br />

Route de Holzem, B.P. 51<br />

L-8201 Mamer<br />

Tel.: +352 312 085-1<br />

Fax: +352 311 911<br />

E-mail: info@ceratizit.com<br />

www.ceratizit.com<br />

Resp<strong>on</strong>sible editor:<br />

Filip Miermans<br />

PR and group communicati<strong>on</strong><br />

Tel: +43 (5672) 200-2127<br />

Fax: +43 (5672) 200-526<br />

E-mail: fi lip.miermans@ceratizit.com<br />

Design development:<br />

Agentur Singer, Lechaschau,<br />

Austria (www.agentur-singer.at)<br />

Printed by:<br />

RWF Frömelt-Hechenleitner<br />

Werbegesellschaft m.b.H.<br />

Volders, Austria<br />

We reserve the right to make technical<br />

changes for improvement of the product.


06<br />

BROVEDANI SPA, ITALy<br />

Brovedani SpA from Italy has been a customer of<br />

CERATIZIT Italia SpA for years and now applies<br />

MaxiClick from CERATIZIT. With the parting and<br />

grooving tool MaxiClick Brovedani machines pump<br />

filters for the automotive sector. Brovedani<br />

produces 150 milli<strong>on</strong> comp<strong>on</strong>ents per year: injecti<strong>on</strong> valves,<br />

plunger adjustment systems and steerage systems for<br />

the automotive and motorcycle industry. Brovedani<br />

was founded in 1947 in Porden<strong>on</strong>e (Italy); today the<br />

company has 500 employees.<br />

“We were looking for a new soluti<strong>on</strong> which was<br />

supposed to enable us to change the tool rapidly and<br />

easily,” says Denis Pistor, technical tool manager at<br />

Brovedani. The parts which have to be machined require<br />

a c<strong>on</strong>sistently high quality level which had to be<br />

maintained or even improved. In this c<strong>on</strong>text productivity<br />

was also to be enhanced through time saving. When<br />

parting and grooving pump filters we applied MaxiClick<br />

MC 10 from CERATIZIT and a coolant <strong>on</strong> our <strong>material</strong><br />

42CrMo4 with a <strong>hard</strong>ness of 300 Hb. Compared to the<br />

parting and grooving systems applied beforehand,<br />

a gratifying cost saving and a 40% producti<strong>on</strong><br />

increase resulted. We frequently part off steel bars,<br />

and as MaxiClick is a particularly narrow insert a great<br />

deal of <strong>material</strong> can be saved.“<br />

MaxiClick – parting and grooving tool with highly<br />

productive cutting operati<strong>on</strong>s<br />

Michele Carraro, cutting tool sales manager of<br />

CERATIZIT Italia SpA, can <strong>on</strong>ly c<strong>on</strong>firm the experiences<br />

of his customer: “The first tests with the CERATIZIT parting<br />

and grooving system has already created c<strong>on</strong>siderable<br />

interest. Its innovative tool design gives a simple method<br />

of breaking off the worn-out cutting edge and replacing it<br />

quickly thus reducing unproductive downtime.”<br />

The parting and grooving tool with the break-off cutting<br />

edges c<strong>on</strong>sists of a tool shank with a l<strong>on</strong>gitudinal lateral<br />

groove where up to five cutting edges are placed <strong>on</strong>e<br />

after the other. The first cutting edge can simply be<br />

broken off after having worn out, so room is made<br />

for the following cutting edge. After a very short time<br />

the tool can be used applying the new cutting edge.<br />

Carraro: “Like the carpet cutting knife for professi<strong>on</strong>als<br />

from the DIy.”<br />

The parting and grooving system c<strong>on</strong>sists of two different<br />

tool holders or tool shank types and inserts with cutting<br />

imp:act 01/08<br />

CERATIZIT customer story:<br />

Brovedani machines with MaxiClick<br />

widths between 0.04 and 0.1". The total length of the<br />

cutting insert is around 2.36". Depending <strong>on</strong> the insert and<br />

the tool holder MaxiClick makes cutting depths up to 0.4"<br />

possible.<br />

The MaxiClick tooling system is designed for optimum swarf<br />

c<strong>on</strong>trol and for optimized combinati<strong>on</strong>s between <strong>material</strong><br />

and coating for a wide range of applicati<strong>on</strong>s.<br />

MaxiClick in operati<strong>on</strong> at Brovedani SpA in Italy.<br />

MaxiClick at the CERATIZIT customer Brovedani in Italy. The first cutting<br />

edge can simply be broken off after having worn out, so room is made for<br />

the following cutting edge.


PLANSEE organizes the<br />

17 th PLANSEE Seminar<br />

from 25 to 29 May 2009 in Reutte, Austria<br />

Scope of the Seminar<br />

The presentati<strong>on</strong>s at the 17th Plansee Seminar will cover<br />

all market segments where products made from high<br />

performance P/M <strong>material</strong>s (metals, composites and<br />

<strong>hard</strong> <strong>material</strong>s) are currently playing an important role,<br />

or where they offer promising alternatives to current<br />

<strong>material</strong> soluti<strong>on</strong>s.<br />

Message from the Secretary<br />

The 17th Plansee Seminar <strong>on</strong> Powder Metallurgical High<br />

Performance Materials will take place at the headquarters<br />

of the Plansee Group in Reutte, Austria from<br />

May 25 – 29, 2009. It is my pleasure to invite the worldwide<br />

community involved with powder metals and <strong>hard</strong><br />

<strong>material</strong>s to participate in this event. A special invitati<strong>on</strong><br />

is extended to students and young scientists engaged<br />

in the field of powder metallurgy. Since we gathered<br />

at the previous Plansee Seminar, the ec<strong>on</strong>omic growth<br />

particularly in Asia has str<strong>on</strong>gly increased the global<br />

demand for raw <strong>material</strong>s and hence the costs for metal<br />

powders.<br />

PLANSEE SEMINAR 2009<br />

At the same time, resp<strong>on</strong>sibility for our envir<strong>on</strong>ment<br />

impels us to critically review the amount of energy<br />

c<strong>on</strong>sumed in the manufacture of P/M products.<br />

This poses the challenge of further optimizing the<br />

overall <strong>material</strong> efficiency, e.g. by near-net-shape<br />

forming and by recycling, and of introducing novel, more<br />

energy-efficient processes, in particular for sintering.<br />

On the other hand, innovative P/M <strong>material</strong>s will c<strong>on</strong>tinue<br />

to play a key role in increasing the efficiency of all<br />

kinds of machinery, for energy c<strong>on</strong>versi<strong>on</strong>, for transportati<strong>on</strong><br />

etc. Developments in all these directi<strong>on</strong>s are well <strong>on</strong><br />

the way. In this c<strong>on</strong>text the Plansee Seminar will <strong>on</strong>ce<br />

again serve as a global forum to de fine the current<br />

status of the science and technology of powder metals<br />

and <strong>hard</strong> <strong>material</strong>s. It will also provide a guideline for the<br />

directi<strong>on</strong> of the developments that we should embark <strong>on</strong>.<br />

Peter Rödhammer<br />

Secretary of the Plansee Seminar<br />

07


08<br />

NEWCOMER PRODUCTS, USA<br />

CERATIZIT acquires<br />

Newcomer Products, Inc.<br />

Newcomer Products in Latrobe/Pennsylvania<br />

CERATIZIT of Mamer, Luxembourg acquires Newcomer<br />

Products, Inc, a privately owned company headquartered<br />

in Latrobe, Pennsylvania. The agreement was signed <strong>on</strong><br />

July 10th, 2007.<br />

“The Newcomer acquisiti<strong>on</strong> meets our objective for<br />

sustainable global growth through expansi<strong>on</strong> in the<br />

NAFTA countries and Asia,” comments CERATIZIT<br />

Spokesman Jacques Lanners. Newcomer is the third site of<br />

CERATIZIT in the United States.<br />

Newcomer Products, Inc., a household name in the US<br />

carbide industry<br />

Privately owned US company Newcomer Products<br />

is specialized in the manufacturing and finishing of<br />

tungsten carbide products for metal cutting and wear<br />

applicati<strong>on</strong>s. From water-based spray dried powders<br />

to sinter-hip technology, Newcomer Products is <strong>on</strong><br />

Nate Parker and Thierry Wolter after signing the agreement. Spokesman Jacques Lanners.<br />

imp:act 01/08<br />

the leading edge of carbide enhancements and<br />

supplies major US metalworking industries.<br />

The company was founded in 1945. Today Newcomer<br />

Products employs 130 people and realized sales of more<br />

than 20 milli<strong>on</strong> dollars in 2006. The company’s head-<br />

quarters are in Latrobe, Pennsylvania.<br />

Says Nate K. Parker Jr., Chairman of Newcomer Products:<br />

“We were looking for a partner with str<strong>on</strong>g technolo-<br />

gical support and both a global view and str<strong>on</strong>g roots in<br />

the US. Clearly, CERATIZIT is <strong>on</strong>e of the rising stars in the<br />

business and they wanted to build up their presence in<br />

the US. CERATIZIT is a perfect fit and we are happy to be<br />

part of their team“.


Robert Eicher<br />

Manager<br />

customer service center<br />

robert.eicher@ceratizitcom<br />

Carrie Henry<br />

Customer service center<br />

inside sales<br />

carrie.henry@ceratizitcom<br />

INTRODUCTION NEWCOMER<br />

CERATIZIT USA<br />

Newcomer Products - a CERATIZIT Brand<br />

P.O. Box 272, Latrobe, PA 15650<br />

Ph<strong>on</strong>e: (724) 694-8100/800-45-6880<br />

Fax: (724) 694-8620/800-544-5009<br />

Customer Service Center Mr. Robert Eicher<br />

E-mail: robert.eicher@ceratizit.com<br />

Ray Benedict<br />

Corporate<br />

accounts manager<br />

ray.benedict@ceratizit.com<br />

Rob Lexa<br />

Sales manager endusers<br />

rob.lexa@ceratizitcom<br />

09


10<br />

GTP PART OF PLANSEE GROUP<br />

US powder expert GTP<br />

is now part of Plansee Group<br />

Effective 1 August 2008, Plansee Group has acquired<br />

the business unit Global Tungsten & Powders (GTP) from<br />

Osram. The purchase agreement had already been<br />

signed <strong>on</strong> 22 April 2008.<br />

GTP is a leading supplier of powders, semi-finished<br />

products and comp<strong>on</strong>ents made from tungsten, molybde-<br />

num and phosphor. Says Michael Schwarzkopf, chairman<br />

of the Plansee Group executive board: “With GTP we will<br />

ensure our l<strong>on</strong>g-term supply of tungsten raw <strong>material</strong>s.<br />

And we will also strengthen our positi<strong>on</strong> in the refractory<br />

metals market in North America.”<br />

GTP used to be part of the lighting manufacturer Osram<br />

for many years. Its expertise in processing tungsten ore<br />

c<strong>on</strong>centrate and recycling of <strong>hard</strong> <strong>material</strong>s scrap has<br />

enabled the company to become the leading supplier<br />

of tungsten powders in North America. Its product range<br />

additi<strong>on</strong>ally includes molybdenum powders and semi-<br />

finished products, as well as other powders that are rele-<br />

vant to the Plansee Group’s markets. GTP’s main<br />

customers are from the aerospace, automotive, coating,<br />

electr<strong>on</strong>ics, energy and lighting industries.<br />

GTP site in Towanda, Pennsylvania.<br />

imp:act 01/08<br />

GTP has producti<strong>on</strong> sites in Towanda, Pennsylvania, and<br />

Bruntál, Czech Republic, and employs 1,050 people. In<br />

the last fiscal year, it recorded sales of approximately 280<br />

milli<strong>on</strong> euros (around 400 milli<strong>on</strong> US-dollars). To meet the<br />

Group’s increasing requirements for tungsten powders,<br />

the Group plans to expand the Towanda site.<br />

GTP will become the Plansee Group’s fourth divisi<strong>on</strong>.<br />

“GTP has performed well in the last couple of years,” says<br />

Schwarzkopf. “We believe in the management team, and<br />

have no plans to make any significant changes to the<br />

product or customer portfolio.”<br />

With the acquisiti<strong>on</strong> of GTP, the Plansee Group meets<br />

its regi<strong>on</strong>al sales target – 50 per cent in Europe and 25<br />

per cent each in America and Asia. The Group now<br />

employs more than 10,000 people worldwide, 2,000 each<br />

in the US and Austria.


World innovati<strong>on</strong>: machining of<br />

aluminum wheels now<br />

without coolant<br />

Benefit from savings with the new MAC cooling set from CERATIZIT.<br />

One of the special fields of the carbide expert<br />

CERATIZIT is aluminum wheel machining. The recently<br />

developed MAC cooling set now allows the complete dry<br />

machining of wheels without refitting machines. In this way<br />

CERATIZIT <strong>on</strong>ce again is able to support their customers in the<br />

automotive industry when it comes to the decisive topic<br />

of cost reducti<strong>on</strong>.<br />

C<strong>on</strong>venti<strong>on</strong>al cooling in the field of aluminum wheel<br />

machining through cooling lubricants is cost intensive.<br />

Both the recycling of the chips and the coolant causes<br />

c<strong>on</strong>siderable costs. While machining a wheel between<br />

four and six kilos of swarf are produced. The recycling<br />

costs are about 15 cents per pound or $ 1.5 per wheel. For<br />

tens of thousands of aluminum rims where dry machining<br />

is applied instead of wet machining attractive saving is<br />

realized very quickly. With the latest world innovati<strong>on</strong><br />

MAC from CERATIZIT, aluminum rim producers can save<br />

m<strong>on</strong>ey, optimize their profit and distinguish themselves<br />

from competitors.<br />

Ingenious: MAC cooling unit cools utilizing the Joule-<br />

Thoms<strong>on</strong> effect<br />

“There were already various external air cooling systems<br />

available in the market, however, their effect was satis-<br />

factory to a limited degree. The nozzle was too far away<br />

from the tool, too much cold air was lost,” explains<br />

Michael Steiner in charge of the development of the new<br />

MAC cooling set at the CERATIZIT development department.<br />

With MAC the CERATIZIT research department has solved<br />

this problem. The cooling unit is directly integrated into the<br />

CERATIZIT tool. The compressed air from the machine goes<br />

through the tool into the MAC unit and is then cooled to<br />

minus temperatures through a physical effect known as<br />

Joule-Thoms<strong>on</strong> effect. Then it immediately hits the insert<br />

and the work piece.<br />

This causes the air to be divided into a warm and a cold<br />

stream (depending <strong>on</strong> the setting). The cold air exits <strong>on</strong><br />

the fr<strong>on</strong>t of the insert through the lateral holes <strong>on</strong> the<br />

tool. The air temperature <strong>on</strong> the cutting edge is then in<br />

subzero range and efficiently cools both work piece and tool.<br />

About 6 bar and 100 gals./min capacity are the prerequisite.<br />

MAC<br />

The cold air reduces the temperature of the swarf and<br />

enabling the tool to decrease and in a lot of cases ideally<br />

avoids the tendency of adhesi<strong>on</strong> of aluminum. The<br />

cooling intensity depends <strong>on</strong> the quantity of air supplied,<br />

its entrance temperature, the quality of the air and the<br />

tool settings of MAC.<br />

The CERATIZIT program for dry machining<br />

Currently the following grades are available for dry<br />

machining of aluminum wheels:<br />

• CTP4115 (PVD –TiAlN lubricating layer; K10)<br />

• CTD4110 (medium fine diam<strong>on</strong>d grains; DP-K01)<br />

CTP4115 is a tried and tested PVD coating with good low<br />

fricti<strong>on</strong> properties. Its advantages can mainly be seen<br />

when machining aluminum alloys with low silic<strong>on</strong> c<strong>on</strong>tent<br />

(Si ≤ 3 %) in combinati<strong>on</strong> with str<strong>on</strong>g built-up edge.<br />

In grade CTD4110, PCD (polycrystalline diam<strong>on</strong>d) being<br />

an extremely <strong>hard</strong> cutting <strong>material</strong> is characterised by<br />

high abrasi<strong>on</strong> resistance and l<strong>on</strong>g service life. This grade<br />

is particularly suitable for aluminum alloys with increased<br />

silic<strong>on</strong> c<strong>on</strong>tent (Si ≥ 12 %), for polish turning of mirror faces<br />

and the machining of high-quality wheels and comp<strong>on</strong>ents<br />

in aluminum.<br />

With the world innovati<strong>on</strong> MAC from CERATIZIT aluminum rim<br />

manufacturers can save a lot of m<strong>on</strong>ey as they can refuse cost-intensive<br />

wet machining.<br />

11


12<br />

CRANKSHAFT MACHINING AT AUDI HUNGARIA<br />

Crankshaft machining with<br />

tailor-made inserts from CERATIZIT<br />

AUDI HUNGARIA MOTOR Kft. in Györ, Hungary, has 5,500<br />

employees. Here the engines for the brands of the Volkswagen<br />

group, Audi, VW, Skoda and Seat are manu-<br />

factured. In Györ the Audi TT Coupé and Roadster is<br />

built, and the Audi A3 Cabriolets will be built there in the<br />

future. In 2006 more than 23,500 vehicles and close to two<br />

milli<strong>on</strong> engines left the plant. This makes Audi Hungaria the<br />

sec<strong>on</strong>d biggest exporter in Hungary. For the machining of<br />

crankshafts Audi Hungaria counts <strong>on</strong> the technology and<br />

experience of the carbide expert CERATIZIT.<br />

Audi is syn<strong>on</strong>ymous with optimum technical performance<br />

and the logo with the four rings. In a few words: Audi ranks<br />

as <strong>on</strong>e of the top firms in the automotive world. It therefore<br />

makes sense to purchase products at CERATIZIT, the techno-<br />

logical leader in the field of carbide for wear parts and<br />

cutting tools.<br />

Crankshaft machining at Audi<br />

Györ is situated 30 miles from the Austrian border, in<br />

Hungary, and numbers 130,000 inhabitants. Since 1994<br />

Audi Hungaria Motor Kft has been located at the<br />

periphery of the town. Audi selected this site for various<br />

reas<strong>on</strong>s: the logistic c<strong>on</strong>necti<strong>on</strong> is very good, within a<br />

radius of 35 miles there are competitive subc<strong>on</strong>tractors,<br />

a hall with a surface of 25 acres. already existed, and a<br />

lot of people in this area speak German very well Further-<br />

more the technical University of Györ ensures that<br />

well-trained engineers and experts are available.<br />

Crankshafts are exposed to enormous forces; their producti<strong>on</strong><br />

requires maximum precisi<strong>on</strong><br />

Zoltán Szathmári is in charge of producti<strong>on</strong> planning and<br />

tool technology in engine producti<strong>on</strong> at Audi Hungaria<br />

Motor Kft. He works closely together with the CERATIZIT<br />

representatives and development specialists. His most<br />

important c<strong>on</strong>tact <strong>on</strong> site is Barnabás Deri, the sales<br />

manager of CERATIZIT Hungaria.<br />

Szathmári leads us through the impressive producti<strong>on</strong><br />

department: high, luminous halls with three extremely<br />

l<strong>on</strong>g and up-to-the-minute producti<strong>on</strong> lines, which are<br />

in additi<strong>on</strong> fully automated. At Audi in Hungary it is very<br />

clean and <strong>on</strong>e is immediately aware that the employees are<br />

proud to work here. In crankshaft machining Audi<br />

Hungaria relies <strong>on</strong> seven different types of inserts from<br />

CERATIZIT: special soluti<strong>on</strong>s CERATIZIT developed together<br />

with the machine manufacturer GFM. Maximum precisi<strong>on</strong><br />

imp:act 01/08<br />

is required. Zoltán Szathmári explains: “The crankshaft<br />

is an essential comp<strong>on</strong>ent of the engine. It c<strong>on</strong>verts<br />

the linear movement into a rotati<strong>on</strong>al movement. The<br />

comp<strong>on</strong>ent is exposed to enormous forces. We<br />

manufacture six different crankshafts. The crankshafts are<br />

supplied in forged c<strong>on</strong>diti<strong>on</strong>. Before machining, a<br />

crankshaft for the 3.0 TDI engine weighs 57 Ibs, after<br />

machining it still weighs as much as 40 Ibs.“<br />

An Audi employee dismantling a planetary milling cutter. After around 250<br />

crankshafts the inserts in the milling cutter have to be indexed.<br />

Before machining a crankshaft for the 3.0 TDI engine weighs 57 Ibs,<br />

after machining it still weighs as much as 40 Ibs.


Three highly modern completely automated producti<strong>on</strong> lines in the huge 25 acres hall.<br />

Mr. Szathmári, what is important in the machining of<br />

crankshafts?<br />

Szathmári: “Two thirds of producti<strong>on</strong> relate to the 3.0<br />

TDI engine. The crankshafts for this engine are made of<br />

42CrMoS4. Rough machining of this crankshaft represents<br />

a difficult task as it c<strong>on</strong>sists of a high-tensile <strong>material</strong><br />

at the limit to soft machining. The <strong>hard</strong> forging skin<br />

virtually ‘eats away’ the tool.”<br />

What does that mean for the tools?<br />

Szathmári: “The blank crankshaft is irregular and shows<br />

varying properties and the surface is not homogeneous.<br />

This means <strong>hard</strong> and irregular strain <strong>on</strong> the insert.”<br />

How l<strong>on</strong>g does an insert last?<br />

Szathmári:“When rough machining (rough milling of<br />

main bearing and webs) the inserts are mounted <strong>on</strong> a<br />

KURBELWELLENBEARBEITUNG AT AUDI HUNGARy<br />

Interview with Zoltán Szathmári, producti<strong>on</strong> planning and<br />

tooling technology at Audi Hungaria<br />

planetary milling cutter or side and face milling cutter.<br />

After around 250 crankshafts the inserts in the milling<br />

cutter have to be indexed.”<br />

How do you assess the relati<strong>on</strong>ship with CERATIZIT?<br />

Szathmári: “We have been working together with<br />

CERATIZIT for four years and maintain a very open relati<strong>on</strong>ship,<br />

there are no secrets. For every new development<br />

we are informed precisely about what has been<br />

improved. CERATIZIT is in a c<strong>on</strong>tinuous optimizati<strong>on</strong><br />

process and is aware that coming to a standstill is<br />

dangerous, because the pressure is high: every year we<br />

invite tenders for the inserts, every year there are new<br />

test procedures and CERATIZIT has to assert itself. We<br />

have been very successful for four years.”<br />

13


14<br />

CRANKSHAFT MACHINING AT AUDI HUNGARIA<br />

Interview with László Janó,<br />

product segment V6,<br />

mechanical producti<strong>on</strong><br />

department at Audi Hungaria<br />

Mr. Janó, how l<strong>on</strong>g does the machining of a crankshaft<br />

take?<br />

Janó: “There are several ways of looking at this. you<br />

could say that at the end of the producti<strong>on</strong> line a<br />

finished crankshaft comes out every 49 sec<strong>on</strong>ds. This is<br />

the cycle time of the line. Including the buffers (per line<br />

there are 5,700 cranks in the buffers) the flow time for<br />

1,400 parts per day amounts to around six days.”<br />

How important is the role of the tools in this producti<strong>on</strong><br />

line?<br />

Janó: “Extremely important. This line is very complex and<br />

flexible. The investment for such a line, for instance, is<br />

three times as high as for a line for the producti<strong>on</strong> of<br />

cylinder heads. For such a complex machining method<br />

process security has to be very good. In the automated<br />

machining chain tool life has to be c<strong>on</strong>sistently high.<br />

65% of the costs are tooling costs. The tools also play a<br />

very important role.“<br />

What is the proporti<strong>on</strong> of n<strong>on</strong> c<strong>on</strong>forming <strong>material</strong>?<br />

Janó: “The tolerances for a crankshaft are very close.<br />

The entire line is designed for this and is c<strong>on</strong>tinuously<br />

optimized. Quality c<strong>on</strong>trol is also very intensive. For the<br />

3.0 TDI engine a 100% rupture test is carried out. For me<br />

the quality of the final product is important, not so much<br />

the share of n<strong>on</strong> c<strong>on</strong>forming <strong>material</strong>. In the last four<br />

Patrick Zobl, product manager at CERATIZIT,<br />

describes crankshaft machining in detail<br />

Technique for crankshaft machining<br />

• High cutting speeds (up to 850 ft/min)<br />

• Planetary milling cutters with diameters ranging from<br />

13.4‘‘ to 28.8‘‘<br />

• Dry machining leading to high temperature stress <strong>on</strong><br />

the cutting <strong>material</strong>.<br />

• High number of teeth of the planetary milling cutters<br />

(40 up to 200 teeth)<br />

• Main bearing and webs are machined at the same<br />

time with two planetary milling cutters<br />

• Due to the length and the relatively small diameter of<br />

the crankshaft machining stability is low<br />

imp:act 01/08<br />

László Janó, product segment V6 with a finished Audi crankshaft.<br />

years <strong>on</strong>ly two crankshafts have been returned to us; this<br />

was due to faulty <strong>material</strong>, not to faulty machining.“<br />

What can a crankshaft withstand?<br />

Janó: “I d<strong>on</strong>‘t want to give numbers, but the basic rule<br />

is that the crankshaft has to withstand three times as<br />

much as the engine.“<br />

Requirements with regard to the CERATIZIT inserts<br />

• High resistance to thermal shock<br />

• C<strong>on</strong>sistent quality of the cutting <strong>material</strong> providing<br />

process security at the customer<br />

• L<strong>on</strong>g tool life, therefore low tool changing costs<br />

• Smooth surface thanks to lower fricti<strong>on</strong>al heat<br />

and wear<br />

Materials used in crankshafts<br />

• Cast ir<strong>on</strong> <strong>material</strong>s for engines when subject to<br />

reduced stress in the engine<br />

• Alloyed steel (Cr, Ni, Mo) with high fatigue strength in<br />

engines which are subject to higher stress or to reduce<br />

weight


CRANKSHAFT MACHINING AT AUDI HUNGARIA<br />

AUDI HUNGARIA MOTOR in Györ, Hungary: in 2006 al<strong>on</strong>e more than 23,500 vehicles and close to two milli<strong>on</strong> engines left the plant.<br />

Basic characteristics of CERATIZIT inserts<br />

• Geometry of the insert is mainly defined by the profile<br />

of the crankshaft<br />

• CERATIZIT chooses the insert to be applied as well as<br />

the geometry of the cutting edge<br />

Steps in the producti<strong>on</strong> of a crankshaft<br />

a. Preparati<strong>on</strong><br />

1. Cutting and centering<br />

2. Internal and external profile milling of the pin of the<br />

bearing and c<strong>on</strong>necti<strong>on</strong> rod bearing pin<br />

3. Turning of the main bearing pins and the end parts<br />

4. Deburring<br />

5. Solid carbide deep hole drilling<br />

b. Hardening (inducti<strong>on</strong> <strong>hard</strong>ening)<br />

c. Finishing<br />

1. Hard turning<br />

2. Threading<br />

3. Chain wheel broaching<br />

4. CBN grinding<br />

5. Fluorescent rupture test<br />

6. Dynamic balancing<br />

7. Finishing (polishing and lapping)<br />

d. Quality test<br />

15


16<br />

LEICHT UND MÜLLER / STAMPING INDUSTRy<br />

High pressure, high<br />

speed and precisi<strong>on</strong><br />

imp:act 01/08<br />

CERATIZIT is the technological leader worldwide in the field of the die industry<br />

Every day we deal with stamped parts. No matter whether<br />

it is furniture metal fittings or motor saws, small plug-in<br />

c<strong>on</strong>tacts in computers, mobile ph<strong>on</strong>es or electric household<br />

appliances – we can find stamped parts practically<br />

everywhere. At the Reutte site CERATIZIT produces<br />

carbide erosi<strong>on</strong> blocks and formed parts for the die<br />

industry according to customer drawings. One of the<br />

CERATIZIT customers who has been trusting the<br />

carbide expert for many years already is the Leicht + Müller<br />

Stanztechnik company.<br />

Stamping is the manufacture of flat or bent parts made<br />

of sheet metal or foil strips using a stamping press and a<br />

stamping tool. CERATIZIT produces carbide erosi<strong>on</strong> blocks<br />

and formed parts from which the customer makes die<br />

inserts and punches through spark erosi<strong>on</strong> (EDM and wire<br />

erosi<strong>on</strong>) or grinding. In fact the business segment ‘tool and<br />

die industry’ has gained the world leadership in the past<br />

few years.<br />

The Leicht + Müller success story<br />

The Leicht + Müller Stanztechnik company produces<br />

stamped parts and tools for automotive electrics, telecom-<br />

municati<strong>on</strong>, household appliances and many other<br />

industry sectors. The company was founded in November<br />

1984 by Heinz Leicht, expert toolmaker, and Klaus Müller,<br />

tool c<strong>on</strong>structor, in Remchingen near Pforzheim<br />

(Germany). Their priority was to enter the internati<strong>on</strong>al<br />

vanguard of tooling manufacturers.<br />

Extract from the product range of Leicht + Müller:<br />

approx. <strong>on</strong>e billi<strong>on</strong> of such parts are produced<br />

here <strong>on</strong> the belt per year.<br />

As far back as 1985 Leicht + Müller also started their produc-<br />

ti<strong>on</strong> of stamped parts. This sec<strong>on</strong>d string to their bow not<br />

<strong>on</strong>ly provided synergy effects but also decisive growth<br />

impulses for the company. Today Leicht + Müller has 60<br />

employees, who <strong>on</strong> a surface of 60,500 sq. feet produce<br />

approx. 1.3 billi<strong>on</strong> stamped parts (20-80 t<strong>on</strong>s) per year <strong>on</strong><br />

10 Bruderer stamping machines.<br />

Up-to-date stamping machines for razor blades<br />

The company is particularly proud of the project for<br />

Gillette (Procter & Gamble Group): together with other<br />

companies Leicht + Müller developed a complex, fully<br />

automatic stamping line for the further processing of razor<br />

blades which are applied in the latest product ‘FUSION’.<br />

The Americans requested a higher output from Leicht +<br />

Müller as compared to the previous technology applied.<br />

In the meantime three complete stamping lines have<br />

been built at L+M which are suitable for batch producti<strong>on</strong><br />

and have been delivered to Gillette (two of them in<br />

Bost<strong>on</strong>/USA and <strong>on</strong>e in Berlin/Germany). The most important<br />

parameters of the currently most modern stamping<br />

machines worldwide is the notably higher output, 500<br />

strokes per minute, two blades with 13 laser points per<br />

stroke respectively, a cleaning module, laser measuring<br />

device and a camera in the stamping tool. Furthermore<br />

robotics and c<strong>on</strong>veyor belts to guarantee full automati<strong>on</strong><br />

of the process are also utilized.


Interview with the leading management<br />

quartet of Leicht + Müller<br />

At Leicht + Müller the young generati<strong>on</strong> is already<br />

straining at the leash. The s<strong>on</strong>s Timo Leicht and Marco<br />

Müller have both completed a profound educati<strong>on</strong>.<br />

Currently they are working in Sales, Marketing, project<br />

management and in the company management, and<br />

later <strong>on</strong> they will entirely take <strong>on</strong> the resp<strong>on</strong>sibilities of<br />

their fathers, Heinz Leicht and Klaus Müller.<br />

What is important in stamping technology and what<br />

does that mean with reference to the carbide?<br />

Marco Müller: “High precisi<strong>on</strong>, l<strong>on</strong>g tool life and profitability.<br />

Carbide applied in high-performance stamping<br />

technology has to be adapted c<strong>on</strong>tinuously to the high<br />

demands regarding tool life and will always be under<br />

scrutiny when compared to ceramics.”<br />

Is there a ceramic soluti<strong>on</strong> which can keep the pace?<br />

Marco Müller: “This discussi<strong>on</strong> has been going <strong>on</strong> for a<br />

while. Of course we have already tested special ceramic<br />

grades and the results in terms of wear and tool life<br />

were sometimes even better than with carbide. However,<br />

the applicati<strong>on</strong> of ceramic is not worthwhile c<strong>on</strong>si-<br />

dering the high acquisiti<strong>on</strong> costs and the extraordi-<br />

nary complexity of machining operati<strong>on</strong>s compared to<br />

carbide. Up to now ceramic has not caught <strong>on</strong> in our<br />

sector for ec<strong>on</strong>omic reas<strong>on</strong>s, and this is also not to be<br />

expected in the near future.“<br />

What are the trends in the stamping sector?<br />

Timo Leicht: “Target prices <strong>on</strong> a globally minimum level,<br />

but products of the customary best German quality. The<br />

market is becoming more and more difficult and <strong>on</strong>e<br />

has to orient <strong>on</strong>eself based <strong>on</strong> low-wage countries. For<br />

cost reas<strong>on</strong>s <strong>on</strong>e should actually buy comp<strong>on</strong>ents for<br />

stamping tools there in order to remain competitive. The<br />

quality however up to now does not meet the<br />

standards of Leicht + Müller. So we have to c<strong>on</strong>centrate<br />

<strong>on</strong> cost reducti<strong>on</strong> in our company, e.g. automati<strong>on</strong> of the<br />

processes. Another tendency is towards hybrid<br />

comp<strong>on</strong>ents<br />

Visi<strong>on</strong> C<strong>on</strong>trol for <strong>on</strong>e hundred per cent process security<br />

Leicht + Müller offers an extensive service range. The<br />

company’s designers work <strong>on</strong> 2-D (Cadda) and 3-D<br />

(Solid Works) CAD work places from Daveg. The Pforzheim<br />

based company is also able to offer prototyping and<br />

pilot producti<strong>on</strong>. Last but not least it is involved in batch<br />

producti<strong>on</strong> of stamped parts with Visi<strong>on</strong> C<strong>on</strong>trol for<br />

guaranteed product quality and ‘laser marking <strong>on</strong> the fly’<br />

for 100 per cent traceability (every single part is provided<br />

with a marking without slowing down the process).<br />

LEICHT UND MÜLLER / STAMPING INDUSTRy<br />

A family-owned company – two generati<strong>on</strong>s manage the high-tech<br />

company Leicht + Müller. (From left: Marco Müller, Klaus Müller, Heinz<br />

Leicht and Timo Leicht).<br />

(plastic-metal composite <strong>material</strong>). An ever increasing<br />

number of customers requests complete assemblies<br />

from <strong>on</strong>e source, that means stamped parts are<br />

covered with plastic and provided with additi<strong>on</strong>al<br />

comp<strong>on</strong>ents such as e.g. Reed sensors or resistances.<br />

Since 2004 we have been able to offer this through<br />

Leicht + Müller SySCOTEC.“<br />

How did the partnership with CERATIZIT start?<br />

Heinz Leicht: “That was at the beginning of the 80’s. At<br />

that time Josef Lämmle was the segment manager. He<br />

visited us frequently and asked if we were ready to test<br />

his products, and he was successful.”<br />

How do you assess the relati<strong>on</strong>ship with CERATIZIT?<br />

Klaus Müller: “We are delighted with the carbide from<br />

CERATIZIT! We appreciate speed, the large assortment<br />

and above all c<strong>on</strong>sistent quality. In a business where<br />

time pressure is enormous the business partners have to<br />

be absolutely reliable. And we fully trust the CERATIZIT<br />

team which has been serving us professi<strong>on</strong>ally for many<br />

years. Carbide is really a matter of c<strong>on</strong>fidence!”<br />

Combinati<strong>on</strong>s of metal and plastic<br />

Leicht + Müller SySCOTEC (Systems, Comp<strong>on</strong>ents,<br />

Technologies) was founded in 2004 and specializes in the<br />

development and producti<strong>on</strong> of complete assemblies,<br />

i.e. combinati<strong>on</strong>s of metal stamping products and plastic<br />

parts. The new products from Leicht + Müller SySCOTEC<br />

have brought customers such as Mercedes, BMW, TRW<br />

and C<strong>on</strong>tinental Teves <strong>on</strong>to the scene. The first batch<br />

producti<strong>on</strong> for level sensors in automotive windscreen<br />

washing fluid started in 2005.<br />

17


18<br />

ÅKERS, SWEDEN<br />

Roll machining with<br />

CERATIZIT tooling<br />

Customer report from the Åkers roll foundry in Sweden.<br />

Machined with CERATIZIT tooling & inserts: the Åkers rolls weighing up to<br />

sixty t<strong>on</strong>s.<br />

They weigh up to sixty t<strong>on</strong>s and are the ‘flat makers’<br />

in the roll mills: the huge rolls which c<strong>on</strong>vert the most<br />

varied metals into sheet metal or strips. When machining<br />

rolls the Åkers roll foundry in Styckebruk (Sweden) relies<br />

<strong>on</strong> ceramic and carbide inserts from CERATIZIT.<br />

Åkers Styckebruk is situated close to Stockholm in the<br />

Swedish province Södermanland. The landscape is<br />

extensive with little development. The motorway is<br />

almost empty. Forests, meadows and lakes follow <strong>on</strong>e<br />

another. In this quiet, almost forgotten area operates the<br />

largest roll manufacturer in the world: Åkers.<br />

Since 1580 the company has been involved in casting.<br />

Once Åkers produced cann<strong>on</strong>s for the Swedish army. The<br />

first roll was produced as far back as 1806. Today 1,400<br />

employees produce high-quality rolls for sheet metal producti<strong>on</strong><br />

in 12 factories in 6 countries achieving a turnover<br />

of 300 milli<strong>on</strong> euros (420 milli<strong>on</strong> US-dollars). Other Åkers<br />

producti<strong>on</strong> sites can be found in Belgium, France, Slovenia,<br />

the USA and recently also in China.<br />

Every week up to 50 rolls are produced, more than<br />

123,000 t<strong>on</strong>s per year.<br />

Every week the Styckebruk site produces between 35<br />

and 40 medium-sized rolls and around five large rolls.<br />

In 2006 the total producti<strong>on</strong> of the group amounted<br />

to 123,600 metric t<strong>on</strong>s, out of which 44% were sold in<br />

Europe, 24% in Asia and 25% in North America. Åkers is<br />

imp:act 01/08<br />

Fireworks: an Åkers employee checks the temperature of the molten ir<strong>on</strong><br />

before pouring it.<br />

a solid family-owned company which successfully relies<br />

<strong>on</strong> sound corporate values. The goal of Åkers is to<br />

secure and further extend its positi<strong>on</strong> as the worldwide<br />

leading roll manufacturer. Some of the Åkers customers<br />

are steel works like Mittal, Tata and Bao Steel.<br />

From the car body to the coin – everything made of sheet<br />

metal<br />

Sheet metal is the base <strong>material</strong> for numerous products<br />

used in everyday life i.e. car bodies, housings of<br />

electr<strong>on</strong>ic devices, coins and sinks are stamped or<br />

formed out of sheet metal. These sheet metals are<br />

produced in steel mills. Aluminum or steel billets are<br />

rolled to sheet metal applying a warm forming<br />

procedure with several roll passes at temperatures<br />

between 1,300 and 2,200 °F until they have the required<br />

thickness. Depending <strong>on</strong> the end product, cold rolling is<br />

used to make hot rolled strips thinner and to improve the<br />

surface quality.<br />

Everything is larger<br />

Åkers thinks big - and in this company everything is larger<br />

than elsewhere; the workers in the halls resemble<br />

miniature figures. Kennet Önnestig, Producti<strong>on</strong><br />

Engineering, describes the producti<strong>on</strong> process. “In a first<br />

step the rolls are cast. For this purpose the requested ir<strong>on</strong><br />

alloy is melted and subsequently poured into a casting<br />

mould. The base <strong>material</strong> is ir<strong>on</strong> scrap which is bought<br />

in locally and then alloyed. Åkers applies two casting


procedures: c<strong>on</strong>venti<strong>on</strong>al static casting and centrifugal<br />

casting. During centrifugal casting the molten metal is<br />

poured into a giant centrifuge which is built into a hole<br />

in the ground. At 600 to 700 revoluti<strong>on</strong>s per minute the<br />

centrifugal force makes sure that the molten metal is<br />

hurled against the internal wall of the casting mould.” The<br />

advantage of this method is that the surface of the roll is<br />

not as rough as in rolls produced with c<strong>on</strong>venti<strong>on</strong>al procedures.<br />

Machining is therefore easier.<br />

Up to 50% of the <strong>material</strong> is removed from every roll<br />

In a sec<strong>on</strong>d step the rolls are ground, turned, parted-off<br />

and milled. This is where the rolls really ‘loose weight’:<br />

up to 50% of the <strong>material</strong> is removed from every roll and<br />

returned to the foundry as ir<strong>on</strong> scrap. For the machining<br />

of rolls CERATIZIT provides Åkers with ceramic and<br />

carbide inserts. “In roll machining tool life and security<br />

are crucial“, says Hans Axelss<strong>on</strong>, cutting tools sales<br />

manager for North Europe. “The machining of a roll can<br />

take several hours or even days, the process therefore<br />

has to be stable, insert changes necessary due to<br />

breakage or premature wear must be avoided, as this<br />

would mean extra time. Sometimes the cutting depths are<br />

enormous, even up to 4 inches.”<br />

Interview with Kjell Anderss<strong>on</strong> -<br />

Purchasing Manager of the Åkers Group<br />

Mr. Anderss<strong>on</strong>, what are the most important quality<br />

criteria of a roll?<br />

Anderss<strong>on</strong>: “A roll should be in acti<strong>on</strong> as l<strong>on</strong>g as possible<br />

without having to be reworked as this always means a<br />

lot of effort and loss of producti<strong>on</strong> time. The customers<br />

usually rework the rolls themselves.”<br />

How are the rolls transported to the customer?<br />

Anderss<strong>on</strong>: “The smaller rolls, let’s say up to 25 t<strong>on</strong>s, are<br />

transported by truck, the larger rolls by train or by ship.<br />

Most customers have their own rail c<strong>on</strong>necti<strong>on</strong>.”<br />

What are the trends in the roll industry?<br />

Anderss<strong>on</strong>: “There are two trends: <strong>on</strong>e trend is towards<br />

high-tech rolls, these are rolls with a higher percentage<br />

of alloys added. In this way the shell of these rolls<br />

becomes <strong>hard</strong>er and more resistant, so the service<br />

life is l<strong>on</strong>ger, however they are also more difficult to<br />

machine. The sec<strong>on</strong>d trend is that grinding in the first<br />

machining phase is becoming ever more important<br />

than rough machining. Grinding however has the<br />

disadvantage that the waste <strong>material</strong> can no l<strong>on</strong>ger be<br />

ÅKERS, SWEDEN<br />

Full c<strong>on</strong>centrati<strong>on</strong> is required when copy turning. One inattentive<br />

moment can totally ruin the 60 t<strong>on</strong> roll.<br />

Åkers has been syn<strong>on</strong>ymous with top quality for almost 500 years. Hans<br />

Axelss<strong>on</strong>, CERATIZIT Sales Manager for North Europe, Heikki Salovaara,<br />

CERATIZIT Key Account Representative, and Kjell Anderss<strong>on</strong>, ÅKERS<br />

Supply Manager (left to right), in fr<strong>on</strong>t of the historic cann<strong>on</strong>s.<br />

melted down directly as the grinding slurry is c<strong>on</strong>taminated<br />

by the coolant. I am therefore almost sure that grinding will<br />

never entirely replace rough machining.”<br />

How did cooperati<strong>on</strong> with CERATIZIT begin?<br />

Anderss<strong>on</strong>: “In milling CERATIZIT (the former Plansee Tizit)<br />

has been a reliable partner for many years. When we<br />

extended our group by the plants in France we realized<br />

that the turning, parting-off and grooving strategy at<br />

these sites was very successful. The Thi<strong>on</strong>ville and Sedan<br />

sites were supplied with tools from Cerametal. We took<br />

a detailed look into this and decided that we would do<br />

the same in Sweden.”<br />

What are CERATIZIT‘s strengths?<br />

Anderss<strong>on</strong>: “CERATIZIT offers very good technical<br />

support and implements projects quickly. Within a<br />

year the new cutting strategy was introduced and the<br />

process was stable. CERATIZIT does a good job and<br />

makes also very good suggesti<strong>on</strong>s for roll machining. This<br />

is exactly what we need!”<br />

19


20<br />

MaxiMill HEC<br />

CERATIZIT’s MaxiMill HEC offers<br />

performance advantages<br />

CERATIZIT’s MaxiMill HEC cutters will help users maximize their productivity when machining Cast Ir<strong>on</strong> comp<strong>on</strong>ents.<br />

The launch of CERATIZIT’s MaxiMill HEC face milling<br />

system at EMO 2007 is further proof of the high levels of<br />

research and development taking place at its Reutte,<br />

Austria manufacturing facility.<br />

The MaxiMill HEC accepts CERATIZIT precisi<strong>on</strong>-<br />

manufactured inserts of either carbide, ceramic or CBN<br />

<strong>material</strong>, which provide up to eight useable edges.<br />

These tangentially-mounted inserts are mounted in such<br />

a way as to ensure maximum cutting performance and<br />

cutter stability, while at the same time reducing the power<br />

required to operate them at their optimum, making them<br />

suitable to a much wider range of machine tools.<br />

The result is a face milling cutter that will generate high<br />

table feeds, l<strong>on</strong>g and c<strong>on</strong>sistent tool life, ec<strong>on</strong>omic<br />

applicati<strong>on</strong> and process security. While MaxiMill HEC can<br />

be used in virtually any C.I. face milling applicati<strong>on</strong> it<br />

will be of real interest to those companies supplying the<br />

automotive sector where the volumes and comp<strong>on</strong>ent<br />

types will suit its particular characteristics and<br />

generate the maximum productivity and cost savings for the<br />

end-user. Typical applicati<strong>on</strong> areas for MaxiMill HEC would be<br />

cast ir<strong>on</strong> comp<strong>on</strong>ents such as c<strong>on</strong>tact faces of crank cases,<br />

imp:act 01/08<br />

cylinder heads, turbochargers and pump cases,<br />

etc. “MaxiMill HEC is the result of an <strong>on</strong>going and<br />

extensive development program at CERATIZIT”, says<br />

C<strong>on</strong>an Jacks<strong>on</strong>, CERATIZIT UK’s Sales Manager. “HEC is a<br />

welcome extensi<strong>on</strong> to the existing MaxiMill range and<br />

will provide many of our automotive customers with the<br />

opportunity to maximize their machine capacity while<br />

reducing tooling costs.”<br />

With the LNHX 1106PNER inserts available in grades<br />

CTC3215 (carbide), CTN3105 Si3N4 (ceramic) and<br />

segmented CBN, the cutting data achieved is<br />

impressive. For example, machining GG25 <strong>material</strong> at a<br />

<strong>hard</strong>ness of HB 180-220 is achieved at around 660 ft/<br />

min, 0.009"/tooth feed rate with up to 0.19" depth of cut<br />

and 3.11" width of cut. Similarly, GGG 70 <strong>material</strong> at a<br />

<strong>hard</strong>ness of HB 240-300 can be cut at 590 ft./min at a feed<br />

of 0.0078"/tooth.


CERATIZIT develops new<br />

high-feed face milling cutter<br />

MaxiMill HFC is syn<strong>on</strong>ymous with rapid milling<br />

CERATIZIT has developed a new tooling system for special<br />

face milling operati<strong>on</strong>s. The MaxiMill HFC (High Feed<br />

Cutting) system is syn<strong>on</strong>ymous with maximum feed and<br />

chip removal rates.<br />

High-feed cutting tools are applied where maximum chip<br />

removal rates must be achieved in a minimum of time.<br />

A typical applicati<strong>on</strong> is rough milling of flat faces, for<br />

instance in the field of mould and die c<strong>on</strong>structi<strong>on</strong>.<br />

MaxiMill HFC guarantees minimum vibrati<strong>on</strong> thanks to<br />

a light cutting geometry with positive rake angles and<br />

high chip removal rates. The inserts for this system have<br />

a special chip groove specifically developed for this<br />

applicati<strong>on</strong> and are offered with the innovative Hyper-<br />

Coat coatings. CTP1235 (for steel), CTP2235 (for stainless<br />

steel) and CTC3215 (for cast ir<strong>on</strong>). The combinati<strong>on</strong> of the<br />

new HFC milling system and the latest CERATIZIT grades<br />

MaxiMill HFC<br />

guarantee maximum performance in terms of tool life,<br />

surface quality and reduced tendency for vibrati<strong>on</strong>.<br />

The optimized tool coating ‘<strong>hard</strong> & tough’, which is both<br />

wear resistant (<strong>hard</strong>) and corrosi<strong>on</strong> resistant (tough),<br />

guarantees l<strong>on</strong>g tool life.<br />

Flexibility c<strong>on</strong>cerning the coolant plays an important role<br />

when high-feed milling. Every tool therefore possesses a<br />

special coolant hole design which is particularly adapted<br />

for minimum quantity lubricati<strong>on</strong>.<br />

The main applicati<strong>on</strong> range of the new MaxiMill HFC<br />

system is face milling with maximum feed (up to 0.12" per<br />

tooth), plunging for the producti<strong>on</strong> of deep pockets and<br />

with maximum chip removal rates (more than 91.5 cubic<br />

inches/minute).<br />

CERATIZIT has developed a new tooling system for special face milling operati<strong>on</strong>s. The MaxiMill HFC (High Feed Cutting) system is syn<strong>on</strong>ymous with<br />

maximum feed and chip removal rates.<br />

21


22<br />

TITANIUM MACHINING<br />

imp:act 01/08<br />

Titanium machining of the future.<br />

The new grade CTP5240 has been<br />

adapted specifically for this task.<br />

Weight reducti<strong>on</strong> is the central requirement in the modern<br />

aerospace industry for both civil and military aviati<strong>on</strong>. The<br />

industry sector resp<strong>on</strong>ds to this requisite with new <strong>material</strong>s<br />

such as carb<strong>on</strong> fiber. In this c<strong>on</strong>text titanium is also<br />

gaining ever more importance in aircraft c<strong>on</strong>structi<strong>on</strong>. In<br />

fact structural comp<strong>on</strong>ents which hold the carb<strong>on</strong> fiber<br />

comp<strong>on</strong>ents together are made of titanium, which is why<br />

they can be c<strong>on</strong>sidered the framework of modern aircraft<br />

c<strong>on</strong>structi<strong>on</strong>. Due to this tendency, structural comp<strong>on</strong>ents<br />

made of aluminum are reducing in importance. C<strong>on</strong>se-<br />

quently a c<strong>on</strong>siderably higher number of comp<strong>on</strong>ent<br />

subc<strong>on</strong>tractors will have to deal with this difficult to<br />

machine <strong>material</strong>.<br />

The CERATIZIT specialists have therefore made it their<br />

goal to offer the industry a tooling soluti<strong>on</strong> which allows<br />

high productivity and relatively low producti<strong>on</strong> costs for<br />

comp<strong>on</strong>ents made from such challenging <strong>material</strong>s.<br />

This is <strong>on</strong>ly possible by developing tools and inserts with<br />

excellent performance in terms of tool life, cutting<br />

parameters and process security. It is not sufficient to<br />

upgrade existing carbide grades and geometries to<br />

reach this goal. This is why our development team have<br />

been c<strong>on</strong>centrating <strong>on</strong> developing a completely new<br />

combinati<strong>on</strong> of cutting <strong>material</strong>, coating and geometry,<br />

adapted exactly to the special challenges of titanium<br />

alloys right from the start:<br />

• New carbide substrate with excellent heat resistance<br />

properties.<br />

• New coating with sufficient toughness, high wear<br />

resistance and small coefficient of fricti<strong>on</strong>.<br />

• New geometries for improved chip formati<strong>on</strong> when<br />

machining titanium.<br />

The advantages of titanium alloys compared to other<br />

<strong>material</strong>s are obvious. Titanium alloys are mainly<br />

characterized by low density which is <strong>on</strong>ly a little more than<br />

that of aluminum. Simultaneously they show twice as high a<br />

strength so that structural comp<strong>on</strong>ents can be designed<br />

slimmer and with lower weight. A disadvantage is their<br />

bad machinability which has a negative impact<br />

<strong>on</strong> manufacturing costs due to low cutting speeds<br />

and short tool life. The most important reas<strong>on</strong> for<br />

this bad machinability is the extremely low thermal


Oliver Baum, Product Manager Aerospace.<br />

c<strong>on</strong>ductivity of titanium alloys. Titanium c<strong>on</strong>ducts heat<br />

about ten times worse than steel. C<strong>on</strong>trary to the<br />

machining of steel the heat produced during the cutting<br />

process is therefore not evacuated with the swarf, but the<br />

major part of the heat is c<strong>on</strong>centrated inside the tool or<br />

the cutting edge.<br />

This is where CERATIZIT gets things moving. A carbide<br />

grade with substantially increased heat resistance was<br />

developed. The main advantage of the new CERATIZIT<br />

grade is really its heat resistance, which allows cutting<br />

speeds up to -20% higher than comparable products from<br />

competitors.<br />

The recently developed grade which is to protect the<br />

carbide substrate against abrasi<strong>on</strong> also serves as a<br />

heat barrier. This means the coating itself must have low<br />

thermal c<strong>on</strong>ducti<strong>on</strong> properties to prevent the heat from<br />

reaching the carbide.<br />

TITANIUM MACHINING<br />

In order to minimize the heat generati<strong>on</strong>, it is<br />

essential that the coating has the smoothest possible<br />

surface and the swarf can glide over the rake<br />

face without substantial resistance. The recently<br />

developed TiB2 coating by CVD from CERATIZIT totally<br />

fulfills these specificati<strong>on</strong>s.<br />

The inserts for titanium machining are customarily<br />

provided with protective chamfers in order to stabilize them<br />

at high temperatures, but this results in the disadvantage<br />

of increased cutting pressure. Now CERATIZIT offers<br />

the decisive competitive edge. Only the extremely heat<br />

resistant substrate of the new CERATIZIT grade CTC5240<br />

enables the applicati<strong>on</strong> of inserts with very positive<br />

geometries, without protective chamfer and with a light<br />

edge h<strong>on</strong>e to be used for the machining of titanium.<br />

In this way cutting pressure is reduced which also limits<br />

heat generati<strong>on</strong>, and chip formati<strong>on</strong> is greatly improved<br />

through these extremely positive geometries. Additi<strong>on</strong>ally<br />

compressed and lamellar chips are avoided, i.e. the<br />

cutting pressure and subsequently wear is reduced.<br />

All in all these effects result in a 20% increase in tool life<br />

compared to other suppliers.<br />

Figure 8: compressed chips ‘fan-fold’ due to insufficient chip formati<strong>on</strong> vs.<br />

spiral swarf.<br />

23


24<br />

RADO, CARBIDE WATCH CASES<br />

Exclusive watches in classic<br />

carbide from CERATIZIT<br />

The Swiss watch manufacturer Rado relies <strong>on</strong> scratchproof cases<br />

from CERATIZIT. Including interview with customer!<br />

What do the punctual departure of a train, a<br />

tenancy agreement, a game of chess and New Year’s<br />

Eve have in comm<strong>on</strong>? They are all subject to time. A<br />

c<strong>on</strong>tributi<strong>on</strong> <strong>on</strong> the ‘time <strong>on</strong> the wrist’, the innovative watch<br />

manufacturer Rado and CERATIZIT’s role in the<br />

producti<strong>on</strong> of scratchproof watch cases.<br />

The presentati<strong>on</strong> of the first scratchproof watch in 1962<br />

represented the start of Rado’s success story. Everything<br />

began when Rado chief designer at the time, Marc<br />

Lederrey, put forward a totally new idea. He was<br />

c<strong>on</strong>stantly irritated when gold and steel watches,<br />

which at the beginning looked beautiful, often showed<br />

scratches after <strong>on</strong>ly a few days and subsequently had to be<br />

polished frequently. Then, tungsten and titanium carbides<br />

were <strong>on</strong>ly known as extremely resistant <strong>material</strong>s in the field<br />

of high-tech producti<strong>on</strong> of special tools. “Making a watch<br />

out of this <strong>material</strong> - that would be the soluti<strong>on</strong>,“ said<br />

Lederrey. And Dr. Paul Lüthi, who was at that time the boss<br />

of Rado, gave the go-ahead for this development. The<br />

result: the first scratchproof watch in the world!<br />

High-tech <strong>material</strong>s in watch producti<strong>on</strong><br />

Today Rado is <strong>on</strong>e of the most important watch<br />

manufacturers in Switzerland. The Rado group has been<br />

part of the Swatch group since 1983 and already has<br />

more than 300 service centers and more than 8,000<br />

sales points. While other watch manufacturers apply<br />

c<strong>on</strong>venti<strong>on</strong>al <strong>material</strong>s such as gold, copper or steel,<br />

Rado counts <strong>on</strong> high-tech <strong>material</strong>s of the future.<br />

Lanthanum, ceramic, sapphire crystal, high-tech<br />

diam<strong>on</strong>d and last but not least carbide. The level of scratch<br />

resistance of a <strong>material</strong> depends <strong>on</strong> its <strong>hard</strong>ness. Hard<br />

<strong>material</strong>s make scratches in softer <strong>material</strong>s: diam<strong>on</strong>d makes<br />

scratches in sapphire, sapphire in glass, and glass in metal.<br />

Carbide case from CERATIZIT for the Swiss watch manufacturer<br />

Rado: injecti<strong>on</strong> molded parts before sintering.<br />

imp:act 01/08<br />

The <strong>hard</strong>er a <strong>material</strong>, the more brittle it is, and thus more<br />

sensitive to impact. Resistance to scratches therefore is<br />

not the same as indestructibility.<br />

Rado has never <strong>on</strong>ly focused <strong>on</strong> beautiful watches.<br />

The main decisi<strong>on</strong> has always been the selecti<strong>on</strong> of the<br />

<strong>material</strong>. In this way design and <strong>material</strong> combinati<strong>on</strong>s<br />

are developed which perfectly combine the two<br />

functi<strong>on</strong>s of a watch: a modern piece of jewelry and a<br />

functi<strong>on</strong>al time indicator.<br />

Carbide from CERATIZIT for the top watch brand Rado<br />

CERATIZIT has supplied Rado with carbide cases for<br />

decades. The development and the producti<strong>on</strong> of<br />

the cases started at the beginning of the 1960‘s at the<br />

Reutte site. Now they are produced in Mamer,<br />

Luxembourg and are then subjected to several<br />

machining processes at Rado’s subc<strong>on</strong>tractors<br />

until they become high-quality watches. Marc Lanners,<br />

producti<strong>on</strong> manager of the watch case line in Mamer:<br />

“The most tricky thing when producing watch cases is<br />

aesthetic quality. The preparati<strong>on</strong> of the feedstock<br />

(a mixture of powder and binder) is of maximum<br />

importance in order to be able to fulfill the quality<br />

requirements. Both surface and form have to be<br />

absolutely perfect. This is why quality c<strong>on</strong>trol is obviously<br />

extremely important for these products. We have very<br />

precise c<strong>on</strong>trol systems.”<br />

“We produce tens of thousands of carbide watch<br />

cases per year, today we have five models,” says Hans<br />

Müller, business segment manager of special indu-<br />

strial wear parts. “Even for these high-quality products the<br />

life cycle is c<strong>on</strong>tinuously decreasing. We must therefore<br />

react ever faster. The latest case model was developed<br />

within <strong>on</strong>ly four m<strong>on</strong>ths by CERATIZIT.”<br />

The external part during final polishing.


RADO, CARBIDE WATCH CASES<br />

Interview with Peter Oppliger, Rado Purchasing Manager<br />

How did the partnership with CERATIZIT start?<br />

Oppliger: “The partnership began in the middle of the<br />

1980’s. After carrying out a detailed study about batch<br />

producti<strong>on</strong> of our model ’The Original’ whose success<br />

has been unparalleled since 1962, we decided to<br />

modify our producti<strong>on</strong> method. We no l<strong>on</strong>ger wanted<br />

to produce the watch crown of our top model through<br />

pressing but through injecti<strong>on</strong> molding. So we referred<br />

to Cerametal in Luxembourg.“<br />

Why does Rado count <strong>on</strong> carbide from CERATIZIT?<br />

Oppliger: “CERATIZIT has a reputati<strong>on</strong> as a reliable<br />

business partner. Its extensive know-how in the field of<br />

carbide injecti<strong>on</strong> molding enables embossing of our<br />

logo in the watch case. In this way it’s also easier for us<br />

to proceed against counterfeits.“<br />

What is important with regard to the watch cases? What<br />

are the special characteristics and properties?<br />

Oppliger: “Since its foundati<strong>on</strong> 50 years ago Rado has<br />

always been a watch manufacturer who has focused<br />

specifically <strong>on</strong> technology and innovative batch produc-<br />

ti<strong>on</strong> processes. At the time of the market launch the<br />

objective was to create a watch <strong>on</strong> which time would<br />

leave no traces, i.e. a scratchproof watch. For this<br />

purpose you need a <strong>hard</strong> and sufficiently shockproof<br />

<strong>material</strong>. Carbide combines these characteristics<br />

and in additi<strong>on</strong> is a visually pleasing <strong>material</strong>, which is<br />

extremely important for watches.“<br />

What are the current projects and further developments?<br />

Oppliger: “Following its pi<strong>on</strong>eering spirit Rado is working<br />

<strong>on</strong> several projects simultaneously; however, we are<br />

unable to discuss anything particular about them right<br />

now. CERATIZIT has offered us a very interesting new<br />

carbide which is light and <strong>hard</strong>ly releases any nickel. So<br />

it can c<strong>on</strong>tinuously be in c<strong>on</strong>tact with the skin. This new<br />

<strong>material</strong> allows us to think about many possible applicati<strong>on</strong>s<br />

for the future.“<br />

Are there any <strong>material</strong>s which compete with carbide?<br />

Oppliger: “In a certain respect high-tech ceramic<br />

manufacture which was introduced in the watch<br />

industry by Rado, is a carbide competitor. Its lightness<br />

and hypoallergenic properties make this ceramic a<br />

<strong>material</strong> which can be easily worn <strong>on</strong> the wrist without<br />

complicati<strong>on</strong>s.“<br />

What would CERATIZIT have to optimize in order to score<br />

additi<strong>on</strong>al points and to get more business?<br />

Oppliger: “As for every other supplier for us it seems<br />

important to maintain close cooperati<strong>on</strong> and good<br />

communicati<strong>on</strong>. As these are luxury articles where<br />

aesthetics and quality are basic requirements it is<br />

obviously decisive to guarantee c<strong>on</strong>sistent and<br />

impeccable quality.“<br />

25


26<br />

HILTI, DRILL MANUFACTURER<br />

CERATIZIT produces<br />

carbide bits for HILTI drills<br />

Customer story <strong>on</strong> the development of tailored carbide bits<br />

The demands <strong>on</strong> the carbide follow from the practical requirements at<br />

the c<strong>on</strong>structi<strong>on</strong> sites, which according to up-to-date market analyses<br />

are steadily increasing.<br />

HILTI, the CERATIZIT key-account customer in the<br />

field of st<strong>on</strong>e working is based in the Principality of<br />

Liechtenstein. HILTI has been buying all carbide bits from the<br />

carbide expert CERATIZIT since 1985. As: <strong>on</strong> the<br />

interface between the drill and the base <strong>material</strong> the<br />

carbide from CERATIZIT shows its strength, thus ensuring<br />

l<strong>on</strong>g tool life. Jan Do<strong>on</strong>gaji, Senior Vice President Business<br />

Unit Drilling & Demoliti<strong>on</strong> at HILTI states: “It is exactly the<br />

products made of carbide from CERATIZIT that customers<br />

perceive as distinctive.”<br />

“In the 1990’s HILTI, the worldwide market and technology<br />

leader in the professi<strong>on</strong>al drill business, together with<br />

CERATIZIT developed the idea of launching a welded<br />

solid head drill. That was the hour of birth of an intensive<br />

development cooperati<strong>on</strong>”, remembers Dr. Wolfgang<br />

Böhlke, Head of the Wear Part Development at<br />

CERATIZIT Luxembourg. The solid head soluti<strong>on</strong> of the HILTI<br />

drill is still unique today. There are no single carbide pins<br />

2<br />

1<br />

imp:act 01/08<br />

On the interface between the drill and the base <strong>material</strong> the carbide<br />

from CERATIZIT shows its strength, thus ensuring l<strong>on</strong>g tool life.<br />

and tips which are inserted into the steel body, but <strong>on</strong>ly<br />

<strong>on</strong>e head which is brazed or welded <strong>on</strong>to the steel body.<br />

Georg Schmid, Business Unit Manager of the tool<br />

producti<strong>on</strong> at HILTI explains: “As the drill head c<strong>on</strong>sists<br />

entirely of <strong>on</strong>e carbide <strong>on</strong>ly, there is more freedom in<br />

terms of cutting edge geometry which subsequently<br />

results in better drilling performance.”<br />

Unique solid head soluti<strong>on</strong> wins EPMA Award<br />

The joining process is regarded as the most delicate step in<br />

drill producti<strong>on</strong>. Schmid: “Carbide and steel are rather<br />

unequal partners when it comes to properties like brittle-<br />

ness and thermal expansi<strong>on</strong>. The critical area with<br />

regard to fractures is undoubtedly where the steel<br />

and the carbide are c<strong>on</strong>nected.” In order to avoid this<br />

problem HILTI and CERATIZIT developed a solid carbide<br />

drill with gradient structure. This means that the carbide is<br />

extremely <strong>hard</strong> <strong>on</strong> the tip but rather tough <strong>on</strong> the steel side.<br />

The gradient in the carbide combines two characteristics:<br />

good wear resistance <strong>on</strong> the tip and a stable welded<br />

Solid head drill with gradient z<strong>on</strong>es in C3X geometry, 0.16 - 0.63" – the<br />

best powder-metallurgical development at the EPMA c<strong>on</strong>ference.<br />

Carbide with gradient structure: 1 Good wear resistance <strong>on</strong> the tip,<br />

2 Stable welded c<strong>on</strong>necti<strong>on</strong> with the steel shank.


c<strong>on</strong>necti<strong>on</strong> with the steel shank. The solid head drill<br />

with gradient z<strong>on</strong>es which was developed by HILTI and<br />

CERATIZIT together with the geometry C3X was even awarded<br />

a prize at the EPMA c<strong>on</strong>ference 2006 in Gent (EPMA =<br />

European Powder Metallurgy Associati<strong>on</strong>).<br />

“The cooperati<strong>on</strong> between HILTI and CERATIZIT also<br />

includes basic elements such as the development of<br />

new cutting <strong>material</strong>s“, says Dr. Till Cramer, Head of the<br />

C<strong>on</strong>sumables Development BU Drilling and Demoliti<strong>on</strong><br />

at HILTI: “HILTI strives for c<strong>on</strong>sistent differentiati<strong>on</strong> in the<br />

market. The cutting <strong>material</strong> represents the key technology<br />

for the differentiati<strong>on</strong> of a drill,“ says the drill expert. “We<br />

really appreciate CERATIZIT’s extraordinary willingness to<br />

implement such developments with us.” Vice President<br />

Do<strong>on</strong>gaji adds: “It has also to do with trust and traditi<strong>on</strong>.<br />

We have already developed several generati<strong>on</strong>s of drills<br />

together, which enables us to move <strong>on</strong> to the next level of<br />

competency together.”<br />

Demands <strong>on</strong> the carbide in the drilling industry<br />

The demands <strong>on</strong> the carbide result from the drill itself,<br />

and these demands are steadily increasing. The <strong>material</strong><br />

to be machined is becoming ever <strong>hard</strong>er, and the<br />

carbide bits are characterized by ever higher performance<br />

capacity. CERATIZIT head of development<br />

Böhlke says: “The demands <strong>on</strong> the carbide are basically<br />

maximum wear resistance when drilling very abrasive<br />

c<strong>on</strong>crete and sufficient toughness when encountering<br />

reinforcements in the c<strong>on</strong>crete. This also requires a stable<br />

welded c<strong>on</strong>necti<strong>on</strong> with the steel shank of the drill.“ And these<br />

capabilities are tested at HILTI in an exceedingly demanding<br />

laboratory for new developments that focuses <strong>on</strong> high<br />

quality. Dr. Cramer says: “In additi<strong>on</strong> to drills HILTI also<br />

HILTI, DRILL MANUFACTURER<br />

develops heavy duty hammers and combi-hammers.<br />

In this way the two comp<strong>on</strong>ents, tool and carbide<br />

bit, can be perfectly adapted to each other.<br />

Those who drill several hundred holes a day<br />

realize the difference.”<br />

Drill producti<strong>on</strong> in Kaufering<br />

The drills are actually not produced in Liechtenstein but in<br />

Kaufering in Bavaria. HILTI’s drills range from diameter 0.2"<br />

(length 4.72" ) up to diameter 1.57" (length 36.22").<br />

HILTI relies <strong>on</strong> innovative soluti<strong>on</strong>s for c<strong>on</strong>structi<strong>on</strong> sites<br />

HILTI as a brand name l<strong>on</strong>g ago became<br />

syn<strong>on</strong>ymous with heavy duty drills and other tooling systems<br />

am<strong>on</strong>gst professi<strong>on</strong>als; the company employs 20,000<br />

people and stands for innovative soluti<strong>on</strong>s for professi<strong>on</strong>als<br />

at c<strong>on</strong>structi<strong>on</strong> sites. And the results are stunning. In<br />

2007 the HILTI group showed a double-digit growth for<br />

the fourth time in a row, launching more than 30 new<br />

products <strong>on</strong> the market every year.<br />

HILTI drills with CERATIZIT carbide bits are supplied throughout the world.<br />

27


28<br />

HPC 12, FRANCE<br />

Unique milling<br />

c<strong>on</strong>cept with<br />

substantial<br />

potential for savings<br />

CERATIZIT develops the new MaxiMill<br />

HPC 12 milling cutter with an<br />

internati<strong>on</strong>al team<br />

With its segment strategy in the business unit end-users<br />

of the cutting tool divisi<strong>on</strong>, the carbide expert CERATIZIT<br />

is particularly successful as the company counts <strong>on</strong><br />

segment-specific and customer-specific products as<br />

well as <strong>on</strong> tailor-made soluti<strong>on</strong>s. In this way the global<br />

player in the field of advanced carbide soluti<strong>on</strong>s also<br />

proves its competence in niche markets. Internati<strong>on</strong>al<br />

cooperati<strong>on</strong> within the group plays an important role<br />

here. An internati<strong>on</strong>al team developed a unique<br />

milling c<strong>on</strong>cept for the automotive industry, namely the<br />

aluminum cutter MaxiMill HPC 12.<br />

A complete tooling c<strong>on</strong>cept in <strong>on</strong>ly six m<strong>on</strong>ths<br />

The starting point of the project was a meeting at an automotive<br />

customer’s in July 2003. CERATIZIT made an offer to<br />

the producti<strong>on</strong> manager to deliver new tools which would<br />

meet the increased requirements within <strong>on</strong>ly six m<strong>on</strong>ths.<br />

An extremely ambitious deadline chosen by CERATIZIT<br />

itself. The CERATIZIT project team had an additi<strong>on</strong>al goal:<br />

a new flexible tooling c<strong>on</strong>cept should be developed<br />

which would be suitable for the majority of applicati<strong>on</strong>s in<br />

aluminum milling for the automotive industry.<br />

This development project brought the MaxiMill HPC12<br />

c<strong>on</strong>cept into being. The idea was to develop a milling<br />

c<strong>on</strong>cept where the number of teeth, the form of the<br />

cutter body, the coolant, the cutting edge geometry, the<br />

rake angles and the cutting <strong>material</strong>s (CBN, PCD) could<br />

be modified.<br />

MaxiMill HPC 12 – the properties<br />

• Low cutting forces thanks to positive rake angles<br />

• Reduced deformati<strong>on</strong> of the comp<strong>on</strong>ents<br />

• Reduced built-up edge<br />

• Increased tool life<br />

• Tool body made of steel<br />

• Precise repeatability during insert change<br />

• Very high stability and l<strong>on</strong>ger tool life<br />

imp:act 01/08<br />

• Opti<strong>on</strong>s: bimetallic versi<strong>on</strong> (steel ring and aluminum core).<br />

• High speed – high performance<br />

• Reduced work piece heating<br />

• Maximum productivity<br />

• Optimised design of tool and insert seat<br />

• Axial fine adjustment<br />

• Short setting time through easy handling<br />

• Fine adjustment = 0.004"<br />

HPC 12 allows savings up to 30 %!<br />

The automotive industry in particular places high<br />

demands <strong>on</strong> their tools. The processes in this field must<br />

not <strong>on</strong>ly be quick and stable, they also need to be<br />

highly c<strong>on</strong>sistent and predictable. Furthermore, in most<br />

of the cases productivity has also to be improved. In<br />

a test with an AHPC 100R12.12 milling cutter MaxiMill<br />

HPC 12 showed its abilities and its saving potential at a<br />

CERATIZIT customer‘s who produces gear box cases made<br />

of aluminum AS7. Applying the HPC 12 milling cutter the<br />

CERATIZIT customer was able to reduce the machining<br />

time by 11.3 sec<strong>on</strong>ds (at the beginning the machining<br />

time amounted to 30.5 sec<strong>on</strong>ds and was reduced to 19.2<br />

sec<strong>on</strong>ds thanks to MaxiMill HPC 12). A surface quality of Rmax<br />

< 6µ – was requested, and CERATIZIT even obtained<br />

4.42µ. The test is also very significant for its extreme<br />

cutting data:


The aluminum milling cutter MaxiMill HPC 12 c<strong>on</strong>vinces through its quick and simple adjustment and the high surface quality.<br />

MaxiMill HPC12: tool body made of steel, precise repeatability during the<br />

insert change, very high stability and l<strong>on</strong>g tool life.<br />

• vc = 15,459 ft./min<br />

• n = 15,000 rev./min<br />

• f = 992.12 "/min<br />

• fz = 0.0055"<br />

These excellent results can be attained with the HPC<br />

12 milling cutter thanks to its stability and its simple and<br />

precise fine adjustment.<br />

Internati<strong>on</strong>al cooperati<strong>on</strong> – voices of the CERATIZIT group:<br />

The idea and the drawing for the HPC 12 c<strong>on</strong>cept come<br />

from France. The project was finally c<strong>on</strong>centrated at the<br />

automotive segment at CERATIZIT Reutte, Austria.<br />

HPC 12, FRANCE<br />

Jürgen Duwe from the development department in<br />

the BU end-users: “It was <strong>on</strong>e of the first projects where<br />

employees of several sites were involved. Despite<br />

different languages and cultures the project was a<br />

resounding success. We got to know each other better<br />

and are now in closer c<strong>on</strong>tact. This will definitely be an<br />

advantage for future projects.”<br />

“I c<strong>on</strong>sider the tooling system HPC 12 a real ‘door opener’<br />

for companies of the automotive industry,” says Tinus<br />

Zuetenhorst, sales manager of CERATIZIT Nederland.<br />

“Ever since we presented this tool we have had a much<br />

str<strong>on</strong>ger presence and actively invited to carry out tests.<br />

We have already been successful at three companies<br />

with the tool – this looks very promising!”<br />

G<strong>on</strong>zalo Artaega, sales representative at CERATIZIT<br />

Ibérica about the HPC milling system: “This soluti<strong>on</strong> has<br />

enabled us to offer our customer Fasa Renault Valladolid<br />

an efficient and ec<strong>on</strong>omic tool which is better than the<br />

competitors’ tools. Above all, the low weight, the l<strong>on</strong>g tool<br />

life and the good surface quality produced by this milling<br />

cutter have c<strong>on</strong>vinced our customers.”<br />

29


30<br />

BGH EDELSTAHL, Germany<br />

A win <strong>on</strong> points:<br />

bar peeling vs. turning<br />

Bar peeling with CERATIZIT tools at BGH Edelstahl<br />

From the raw forged blank to the polished bar – the<br />

carbide expert CERATIZIT proves its expertise in the field<br />

of bar peeling with practical examples. The mechanical<br />

engineering segment in the CERATIZIT cutting tool<br />

divisi<strong>on</strong> / BU end-users focuses <strong>on</strong> the development of<br />

tools for bar peeling, an important area in the field of<br />

cutting tools.<br />

Bar peeling is a machining method where producing<br />

heavy swarf. It is the machining of forged bars to remove<br />

oxide, chilled skin and surface cracks. During the peeling<br />

operati<strong>on</strong> the bars are given the requested surface<br />

quality, dimensi<strong>on</strong>al accuracy and roundness. Bar<br />

peeling is suitable for the machining of various<br />

<strong>material</strong> types: for example tempered steel, bearing<br />

steel, tool steel, high-speed steel and spring steel, high<br />

alloyed also stainless steels, and even for titanium.<br />

The results are semi-finished products which are mainly<br />

delivered to the oil industry and the general<br />

mechanical engineering sector. Automatic lathes<br />

produce the most varied turned parts. Later the bars may<br />

be machined as mandrels, axles for wind turbines, gears,<br />

pist<strong>on</strong> rods and shafts.<br />

Bar peeling: from the blank steel to the machined bar<br />

During the peeling operati<strong>on</strong> the bar is moved through a<br />

rotating peeling head, with a radial directi<strong>on</strong> of cut. The<br />

peeling head in this case has four cartridges, each with<br />

<strong>on</strong>e to three inserts which are all in c<strong>on</strong>tact with the bar.<br />

The inserts serve for roughing and finishing.<br />

Bar peeling in detail<br />

1. Heating the blank steel in a furnace<br />

2. Forging or rolling of the hot bars<br />

3. Annealing and pre-alignment of the bars<br />

4. Taking samples for quality assurance<br />

5. Eliminati<strong>on</strong> of oxide, chilled skin, and surface<br />

cracks in the peeling facility taking into<br />

account the required dimensi<strong>on</strong>al accuracy<br />

and surface treatment<br />

6. Straightening of the bar in the press to balance<br />

stress and strains which are caused by bar peeling.<br />

7. Final ultras<strong>on</strong>ic checking of the peeled bar for<br />

cracks and other imperfecti<strong>on</strong>s<br />

8. Available up<strong>on</strong> request: grinding of the bar in a<br />

belt grinding machine<br />

imp:act 01/08<br />

Impressive: at BGH in Siegen bars up to 60 feet l<strong>on</strong>g, are turned by a<br />

Kieserling & Albrecht machine with a length of 164 feet.<br />

CERATIZIT carbide tools for bar peeling – the robust <strong>on</strong>es for the <strong>hard</strong><br />

work.<br />

A practical example: bar peeling at BGH Edelstahl in<br />

Siegen, Germany<br />

Boschgott<strong>hard</strong>shütte (BGH) Edelstahl in Siegen has been<br />

a CERATIZIT customer since 2005. BGH produces stainless<br />

steel and special alloys suitable for the toughest applicati<strong>on</strong>s.<br />

At BGH in Siegen bars up to 60 feet l<strong>on</strong>g, are turned<br />

by a Kieserling & Albrecht machine with a length of<br />

164 feet. With this facility BGH machines around 4,100 t<strong>on</strong>s<br />

of bars per m<strong>on</strong>th, producing 350 t<strong>on</strong>s of swarf.<br />

CERATIZIT makes the roughing insert RNMH 5018MOS00-R50<br />

CTC1635, which is applied up to a cutting depth of 0.28",<br />

and the finishing insert, yNUF 201220S50-M50 CTC1125,<br />

which thanks to its positi<strong>on</strong>ing in the cartridge achieves a<br />

c<strong>on</strong>stant cutting depth of 0.06".


Eliminati<strong>on</strong> of forging skin, chilled skin, and surface cracks in the peeling facility.<br />

Interview with Jost Kretzer,<br />

plant manager at BGH Edelstahl<br />

When is peeling applied instead of turning?<br />

Kretzer: “Peeling is mostly applied for l<strong>on</strong>g cylindrical<br />

work pieces, i.e. bars. Shafts with a step or bars with a<br />

diameter larger than 11.8" are turned.“<br />

What are the advantages of bar peeling?<br />

Kretzer: “One of the main advantages is the simul-<br />

taneous applicati<strong>on</strong> of four tools; this means feed rates<br />

four times higher than with turning. There is also reduced<br />

vibrati<strong>on</strong> in peeling because the bar is held closer to the<br />

cutting tools. The entire peeling process is c<strong>on</strong>siderably<br />

more stable and thus more resistant to vibrati<strong>on</strong>, through<br />

which performance is also increased.<br />

Furthermore the <strong>material</strong> allowance for bar peeling is<br />

smaller compared to classic centre turning. The bar<br />

BGH EDELSTAHL, Germany<br />

is held centrally, extra support such as fixed stays or<br />

change of clamping as in turning are not necessary.“<br />

What are the risks in bar peeling?<br />

Kretzer: “Clearly, the breakage of the insert. If an insert<br />

breaks at a feed rate of 0.59 to 0.7" per revoluti<strong>on</strong>, the<br />

entire cartridge is ruined, or even all four cartridges. The<br />

higher forces which can occur after the insert breakage<br />

cause the peeling head to start turning the bar instead<br />

of peeling it. This leads to very high costs as the 22 guide<br />

rolls of the peeling machine and the bar are damaged.<br />

But before the insert breaks, the pressure rises and the<br />

facility requires more power, which can be heard very<br />

well. In this case sensitivity is necessary: it is important<br />

to change the insert at the right moment to avoid this<br />

risk.“


32<br />

HUNTING OILFIELD SERVICES, NETHERLANDS<br />

A small device with a big effect<br />

CERATIZIT customer story: improved security in threading<br />

operati<strong>on</strong>s for the oil industry<br />

The CERATIZIT customer Hunting Oilfield Services<br />

BV (Netherlands) provides high-quality tubes and<br />

couplings with threads. The tubes are applied worldwide<br />

for the producti<strong>on</strong> of oil and natural gas. Until a short time<br />

ago the swarf resulting from the producti<strong>on</strong> of couplings<br />

stayed in the work piece and was removed manually.<br />

Dangerous work, as hot and sharp chips were thrown<br />

around and could injure the workers. CERATIZIT found a<br />

quick soluti<strong>on</strong>.<br />

A show of strength: the exacting process of winning oil<br />

Tubes and couplings are exposed to enormous stress<br />

during oil extracti<strong>on</strong> as most oil deposits are four 3 miles<br />

beneath the surface of the earth. A boring head or trepan<br />

has the difficult task to ensure access to the oil.<br />

The boring tool c<strong>on</strong>sists of steel tubes placed at its ends<br />

which are c<strong>on</strong>nected by threaded joints to form the<br />

pipe string and drill string. Shortly before the trepan<br />

reaches the oil deposit the drill string has a length<br />

of several miles and, weighs around 110 t<strong>on</strong>s which<br />

corresp<strong>on</strong>ds to the weight of a large diesel locomotive.<br />

This enormous weight is suspended <strong>on</strong> the upper thread,<br />

the quality of which therefore has to fulfill exacting<br />

demands.<br />

Precisi<strong>on</strong> and security: threading<br />

Hunting Oilfield Services BV in Velsen-Noord, northwest<br />

of Amsterdam, specializes in problem soluti<strong>on</strong>s for<br />

oil and gas extracti<strong>on</strong>. Some customers of the affiliate<br />

The new soluti<strong>on</strong> from CERATIZIT: the swarf is drawn from inside to<br />

outside and falls out of the work piece.<br />

imp:act 01/08<br />

Hunting PLC group are Gaz de France, Total Fina and<br />

Exx<strong>on</strong> Mobil. Hunting Oilfield Services was founded in 1986<br />

and today has around 60 employees who work seven<br />

machines around the clock (shift work).<br />

Hunting Oilfield Services produces the threads in<br />

tubes and couplings which are applied for oil and gas<br />

extracti<strong>on</strong>. The tubes mainly come from Japan and<br />

have a length between 32 and 42 feet. 75 % of the tubes<br />

c<strong>on</strong>sist of high alloyed chromium steel, the remaining<br />

25 % of low alloyed steel with medium strength (P110, C95<br />

or L80). Threading both sides of the tube takes about 15<br />

minutes. One cutting edge of an insert lasts for about 10<br />

to 14 threads.<br />

Risk of injury at the workplace<br />

To avoid damage of the work piece and ensure l<strong>on</strong>ger<br />

service life of the insert it is absolutely necessary to<br />

evacuate the swarf as fast as possible. Until a year ago<br />

at Hunting the swarf resulting from threading operati<strong>on</strong>s<br />

remained in the coupling. From there the workers<br />

extracted it by hand, the CNC machine remaining in operati<strong>on</strong><br />

and the door open - a dangerous situati<strong>on</strong>. When<br />

turning, the spindle in the CNC machine rotates very quikkly,<br />

hot sharp swarf is flung about and coolant sputters<br />

around. The danger of injury is very high.<br />

The Holland Institute for work security (ARBO) criticized<br />

the machine and demanded that Hunting operate the<br />

machines securely.<br />

Quality c<strong>on</strong>trol: the work piece is manually checked for ruptures.


The danger was recognized and averted<br />

The CERATIZIT engineers Jackie Roland and Fabrice<br />

Casagrande (the latter being the business segment<br />

manager cutting tools/oil industry at CERATIZIT<br />

Luxembourg) were asked for advice. Their soluti<strong>on</strong><br />

was to produce the thread from the inside towards the<br />

outside of the comp<strong>on</strong>ent so that the chips are<br />

eliminated automatically. For this purpose they<br />

designed a special tool holder which positi<strong>on</strong>s the insert<br />

HUNTING OILFIELD SERVICES, NETHERLANDS<br />

securely. Even if it is drawn into the opposite directi<strong>on</strong> as<br />

is here the case.<br />

The new tool holder c<strong>on</strong>cept ensures that the chips are<br />

transported <strong>on</strong> the shortest way from the work piece<br />

and that the coolant stream is precisely directed <strong>on</strong>to<br />

the cutting edge. The Dutch Institute for work secu-<br />

rity was satisfied with this soluti<strong>on</strong> so that producti<strong>on</strong> was<br />

allowed to go <strong>on</strong> at Hunting without any interrupti<strong>on</strong>.<br />

Interview with André Verbiest, Manufacturing Manager<br />

of Hunting Oilfield Services BV<br />

Mr. Verbiest, what is important when threading for the<br />

oil industry?<br />

Verbiest: “We are under great time pressure. We must<br />

therefore produce quickly and without interrupti<strong>on</strong>. If<br />

we do not supply, the work <strong>on</strong> the oil platform comes<br />

to a halt. This costs a fortune. A further point is that the<br />

c<strong>on</strong>necti<strong>on</strong>s between the couplings and the tubes,<br />

namely the threads, are standardized. It is absolutely<br />

necessary that the thread be gasproof and have a<br />

c<strong>on</strong>sistently high quality.”<br />

What characterizes the cooperati<strong>on</strong> with CERATIZIT?<br />

Verbiest: “I have noticed a combinati<strong>on</strong> of determinati<strong>on</strong><br />

and technical competence. The representatives<br />

believe in their product and are really behind it - this is<br />

easily perceivable. Furthermore, CERATIZIT does not try<br />

to sell us stock articles after a delivery time of 12 weeks,<br />

but offers exactly the soluti<strong>on</strong> that we need after <strong>on</strong>ly a<br />

couple of weeks. This is what we like in particular.”<br />

What is the quality of the CERATIZIT products?<br />

Verbiest: “The double clamping system is very<br />

good. you can see what is going <strong>on</strong> and the insert is<br />

positi<strong>on</strong>ed perfectly safely. Recently we have<br />

c<strong>on</strong>ducted numerous tests where we achieved<br />

c<strong>on</strong>siderably better results than our competitors, as we<br />

applied CERATIZIT inserts.”<br />

What could CERATIZIT improve?<br />

Verbiest: “CERATIZIT takes little things into account,<br />

which make a big difference in customer service. For<br />

example, the packages they deliver have little grips.<br />

So, both the freight carrier staff and our staff carry the<br />

packages instead of throwing them. This causes less<br />

transport damage which subsequently has a positive<br />

effect <strong>on</strong> the cooperati<strong>on</strong>. So I can <strong>on</strong>ly say: keep<br />

going!”<br />

75 % of the tubes from Hunting Oilfield Services BV c<strong>on</strong>sists of high alloyed chromium steel, the remaining 25 % of low alloyed steel with medium strength<br />

(P110, C95 or L80).<br />

33


34<br />

COATED CBN<br />

imp:act 01/08<br />

CERATIZIT successfully applies CBN<br />

with a world innovati<strong>on</strong> coating<br />

On the occasi<strong>on</strong> of AMB (9 th -13 th September, Stuttgart, Germany)<br />

CERATIZIT will for the fi rst time present a coated CBN<br />

(cubic bor<strong>on</strong> nitride) <strong>material</strong>.<br />

In 1969 GE (General Electric) launched cubic bor<strong>on</strong> nitride<br />

for the fi rst time under the name ‚Boraz<strong>on</strong>’ as a revoluti<strong>on</strong>ary<br />

development in the fi eld of extremely <strong>hard</strong> grinding<br />

<strong>material</strong>. CBN does not occur naturally, but is produced<br />

synthetically (high-pressure synthesis) and, with a <strong>hard</strong>ness<br />

twice as high as silic<strong>on</strong> carbide (SiC) after diam<strong>on</strong>d ranks<br />

as the sec<strong>on</strong>d <strong>hard</strong>est <strong>material</strong>.<br />

CERATIZIT supplies the most important producer of CBN<br />

<strong>material</strong>s with the tools necessary for high-pressure<br />

synthesis (anvils and dies).<br />

CBN has been known as a cutting <strong>material</strong> for over 30<br />

years and shows its strengths particularly when turning<br />

<strong>hard</strong> <strong>material</strong>s (<strong>hard</strong>ness > 58 HRC), such as <strong>hard</strong>ened<br />

steel or chilled castings: CBN is characterized by extreme<br />

<strong>hard</strong>ness and excellent heat resistance as well as suffi cient<br />

toughness for this applicati<strong>on</strong> area.<br />

CERATIZIT has been selling CBN inserts for many years. The<br />

product range also includes milling tools to an increasing<br />

degree. The stress the tools are subjected to during<br />

these milling operati<strong>on</strong>s is caused by interrupted cut,<br />

thermal changes and oxidati<strong>on</strong>, and represents <strong>on</strong>e of<br />

the threshold applicati<strong>on</strong>s of CBN.<br />

The new HyperCoat grade CTL3215 – CBN has a new lease<br />

of life<br />

Thanks to the applicati<strong>on</strong> of a suitable and functi<strong>on</strong>al<br />

coating, the milling range has been extended as both<br />

process security and tool life have signifi cantly been<br />

increased. Furthermore it has become evident that<br />

these improvements also have a positive impact <strong>on</strong><br />

turning operati<strong>on</strong>s of grey cast ir<strong>on</strong> and steel castings<br />

under diffi cult c<strong>on</strong>diti<strong>on</strong>s.<br />

HyperCoat coating is the secret<br />

CERATIZIT has developed and patented a specifi c<br />

PVD coating for CBN cutting <strong>material</strong>s. This innovative<br />

coating is the answer to the complex demands <strong>on</strong> a <strong>material</strong><br />

applied in milling operati<strong>on</strong>s which are characterized<br />

by stress variati<strong>on</strong>, thermal shock and oxidati<strong>on</strong>. The<br />

recently developed coating is based <strong>on</strong> an innovative<br />

compositi<strong>on</strong> which shows signifi cantly better resistance to<br />

oxidati<strong>on</strong> and simultaneously excellent wear resistance,<br />

especially when it comes to high applicati<strong>on</strong> temperatures.<br />

Compressive stress resulting from the PVD coating procedure<br />

provides the new HyperCoat coating with higher<br />

toughness and last but not least with more reliability for the<br />

tooling system.<br />

CTL3215 ensures success<br />

Thanks to CERATIZIT’s coating approach the applicati<strong>on</strong><br />

range of CBN tools has been substantially extended. At<br />

last it is now possible to mill also <strong>hard</strong>ened steel and cast<br />

ir<strong>on</strong> in a notably better way. The coated CBN soluti<strong>on</strong><br />

from CERATIZIT will mainly be applied for fi ne or medium<br />

milling operati<strong>on</strong>s with cutting speeds up to 1,000 meters<br />

per minute, depending <strong>on</strong> the applicati<strong>on</strong>. The tooling<br />

soluti<strong>on</strong> therefore requires stable machining c<strong>on</strong>diti<strong>on</strong>s<br />

and is applied without cooling lubricant. In general tool<br />

life is increased by 30 to 40 % compared to uncoated<br />

CBN.


New: OvalFlex<br />

The oval all-rounder for aluminum wheels<br />

Aluminum wheels are more popular than ever. Today<br />

almost every new automobile is provided with aluminum<br />

wheels, with a tendency to rise. The variety of types and<br />

design is c<strong>on</strong>tinuously increasing. Requirements with<br />

regard to productivity, process security and flexibility<br />

for aluminum wheel producers are therefore also<br />

increasing.<br />

This is why CERATIZIT has developed OvalFlex tailored to<br />

the specific needs of the operators. The tooling system<br />

is the all-rounder that the aluminum wheel market has<br />

eagerly been waiting for a l<strong>on</strong>g time. With its oval form<br />

and silvery glitter colour it is applied to produce real<br />

‘gems’ – while at the same time it c<strong>on</strong>vinces through a<br />

series of innovati<strong>on</strong>s.<br />

Higher stability and improved performance<br />

“With OvalFlex we have succeeded in developing a highperformance,<br />

modular tooling system with maximum<br />

stability and reliability“, says Dr. Uwe Schleinkofer,<br />

Head of the Development Department Cutting Tools at<br />

CERATIZIT. “The oval form of OvalFlex makes the tool’s<br />

assembly height larger than in normal round tools.<br />

Therefore improved stability and performance are<br />

guaranteed for the entire tooling system.”<br />

The new oval interface c<strong>on</strong>nects the tool shank with the<br />

tool head. Four tapered surfaces around the interface<br />

provide accurate c<strong>on</strong>necti<strong>on</strong> with the locati<strong>on</strong> face in<br />

both radial and axial directi<strong>on</strong>.<br />

The advantages at a glance:<br />

• High flexibility<br />

(special tools no l<strong>on</strong>ger necessary)<br />

• Tool life increased up to 100 per cent<br />

• Reduced logistics<br />

(standardized interfaces and insert seats)<br />

• Maximum stability<br />

• Maximum applicati<strong>on</strong> security<br />

Makes aluminum rims really beautiful: OvalFlex<br />

OvalFlex<br />

“Thanks to its oval form OvalFlex offers improved stability<br />

and performance for the entire tooling system.”<br />

Dr. Uwe Schleinkofer, Head of R&D Cutting Tools.<br />

High flexibility<br />

Furthermore <strong>on</strong> the OvalFlex system various tool heads<br />

can be mounted <strong>on</strong> the shanks. “This ensures high<br />

flexibility. “Special tools can be avoided to a large<br />

degree,” according to Dr. Schleinkofer.<br />

For OvalFlex CERATIZIT has developed new inserts (X32):<br />

larger than comm<strong>on</strong> inserts, extremely stable and<br />

protected against drawing cuts by their tapered form.<br />

“All these inserts with different radii can be used in the<br />

same tool“, emphasizes the Head of the Development<br />

Department.<br />

C<strong>on</strong>clusi<strong>on</strong>: <strong>on</strong>ly OvalFlex makes aluminum rims really<br />

beautiful!


36<br />

AUSTRIA ALU-GUSS<br />

The individual hallmark of the car<br />

In the field of rim producti<strong>on</strong> Austria Alu-Guss relies <strong>on</strong> OvalFlex<br />

from CERATIZIT.<br />

Its design is the eye-catching feature of a car, providing<br />

it with a pers<strong>on</strong>al touch: the aluminum rim. It is en vogue<br />

as never before, and almost every automobile today<br />

has aluminum rims as a standard feature. The variety of<br />

types and design is c<strong>on</strong>tinuously increasing. OvalFlex,<br />

a modular turning tool developed by CERATIZIT, fulfils<br />

the demands of the manufacturers regarding flexibility,<br />

productivity and process security. The CERATIZIT<br />

customer Austria Alu-Guss, who is <strong>on</strong>e of the big players<br />

in the sector (producti<strong>on</strong> volume of three milli<strong>on</strong><br />

aluminum wheels per year) has successfully applied<br />

OvalFlex since the beginning of 2007.<br />

The tendency: exclusive styling<br />

Light metal wheels are applied in formula 1 cars, trucks<br />

for heavy load transports and also in the aerospace<br />

industry. The major share however are aluminum wheels<br />

for automobiles where basically two types may be<br />

distinguished: <strong>on</strong>e-piece rims in <strong>on</strong>e casting and multi-<br />

piece rims which are c<strong>on</strong>nected by screws and c<strong>on</strong>sist of<br />

a rim bed, a rim crown and a centre hub.<br />

Austria Alu-Guss is based in the Austrian Ranshofen,<br />

has been a member of the Borbet group since 1996<br />

and develops and produces aluminum rims for Audi,<br />

BMW, Mercedes, Opel, GM, Porsche, VW, Seat etc. The<br />

company has 730 employees and offers wheel types with<br />

annual quantities over 100,000 pieces as well as small<br />

batches of less than 1,000 pieces. The trend is towards<br />

smaller batch sizes whereas the styling is becoming<br />

increasingly varied. “The most important task is to<br />

technically implement the customer’s wishes regarding<br />

the design,” says Alois Grömer from the mechanical<br />

machining department at Austria Alu-Guss. “A light<br />

metal wheel almost always represents a compromise.”<br />

Stability and high performance: OvalFlex<br />

On a c<strong>on</strong>veyor belt the blank aluminum rim is transported<br />

to the CNC machine, where it is turned at around<br />

2,000 rev/min applying OvalFlex.<br />

OvalFlex has exclusively been developed for machining<br />

light metal wheels. The oval shape differs from the<br />

c<strong>on</strong>venti<strong>on</strong>al round shape of copy turning tools. In this<br />

way the tool does not need so much space and can go<br />

deeper into the rim. The height however has remained<br />

the same and guarantees stability which increases<br />

profitability, as high stability makes larger depths of cut<br />

possible.<br />

imp:act 01/08<br />

The main attracti<strong>on</strong>: the new oval interface c<strong>on</strong>nects<br />

the tool shank with the tool head. Four tapered surfaces<br />

around the interface provide accurate c<strong>on</strong>necti<strong>on</strong><br />

with the locati<strong>on</strong> face in both radial and axial directi<strong>on</strong>.<br />

Thanks to this highly precise c<strong>on</strong>necti<strong>on</strong> it is almost<br />

unnecessary to make correcti<strong>on</strong>s.<br />

High flexibility, reduced logistics<br />

Another advantage of OvalFlex is its modularity.<br />

Different styles of tool heads can be mounted <strong>on</strong> the<br />

adapters. In additi<strong>on</strong>, different angles can be set <strong>on</strong><br />

the tools. A system which ensures that aluminum wheel<br />

manufacturers benefit commercially and logistically, as<br />

thanks to modularity they need fewer special tools and<br />

the necessity for stock keeping is decreased.<br />

High-quality metal is melted and the respective alloy formed so that the<br />

wheels can be cast in low-pressure machines.<br />

The overhead c<strong>on</strong>veyor transports the aluminum rims to the lacquering<br />

facility.


Exact positi<strong>on</strong>ing of the inserts<br />

For Ovalflex CERATIZIT has developed new inserts. The X32<br />

insert is larger than the comm<strong>on</strong> inserts and extremely<br />

stable. Thanks to its top faces it may be positi<strong>on</strong>ed<br />

precisely, assuring that the insert also absorbs the cutting<br />

forces better. The X32 insert is even protected against<br />

drawing cuts in the best possible way through the shape<br />

of the top surfaces.<br />

The steps in the manufacturing process of light<br />

metal wheels:<br />

1. High-quality metal is melted and the respective<br />

alloy formed so that the wheels can be cast in<br />

low-pressure machines.<br />

2. An x-ray facility checks every wheel for faults in<br />

the casting.<br />

Interview with Alois Grömer<br />

from the mechanical<br />

machining department at<br />

Austria Alu-Guss<br />

Which step is the most tricky when manufacturing<br />

aluminum rims?<br />

Grömer: “This depends <strong>on</strong> the design. In general you<br />

could say that a combinati<strong>on</strong> of all processes leads to<br />

a good product. When producing a wheel made of<br />

easy-to-machine <strong>material</strong> there may be problems during<br />

casting. But then, with a wheel that can easily be cast,<br />

there may be problems during machining. Various<br />

special lacquers may also cause problems during<br />

producti<strong>on</strong>.”<br />

What is important with regard to the <strong>hard</strong> metal?<br />

Grömer: “We have to find the ideal compositi<strong>on</strong> of the<br />

carbides. The higher the silic<strong>on</strong> c<strong>on</strong>tent in the aluminum<br />

alloy, the faster wear occurs.”<br />

What was the most complex rim you have ever<br />

produced?<br />

Grömer: “It was a Rolls Royce rim, a so called ‘Nature<br />

Wheel’ which was very difficult to machine because of<br />

its thin walls.”<br />

What is the tendency in the aluminum wheel sector?<br />

Grömer: “The tendency is towards individuality and<br />

light c<strong>on</strong>structi<strong>on</strong>. The unsprung masses have to be<br />

reduced, this means a c<strong>on</strong>sistently light c<strong>on</strong>structi<strong>on</strong> of<br />

the wheels.“<br />

AUSTRIA ALU-GUSS<br />

3. A heat treatment taking several hours increases<br />

the strengths of the wheels.<br />

4. The wheel profile is turned <strong>on</strong> CNC machines,<br />

subsequently the valve hole and the holes for<br />

the bolts are drilled. Everything is d<strong>on</strong>e with<br />

tools from CERATIZIT.<br />

5. All wheels are checked for unbalance, cleaned<br />

and then finished with lacquer. A 3-layer structure<br />

of the lacquer protects the wheels while<br />

being used.<br />

6. Finally a fully automatic helium pressure test<br />

facility verifies if the wheels are leak-proof.<br />

The Austria Alu-Guss rim experts: Alois Grömer (mechanical machining)<br />

and Manfred Niedermüller (c<strong>on</strong>tinuous improvement process and<br />

engineering), from left.<br />

How l<strong>on</strong>g does a cutting insert last <strong>on</strong> average?<br />

Grömer: “It is very difficult to make a precise statement<br />

as the service life of an insert depends <strong>on</strong> numerous<br />

factors. By rule of thumb however you can say that a<br />

cutting edge can work up to 400 rims (standard rim<br />

17 inches).”<br />

What is CERATIZIT‘s strength?<br />

Grömer: “CERATIZIT has always been <strong>on</strong>e of the leading<br />

companies in the field of aluminum machining. With the<br />

recently developed modular OvalFlex tooling system<br />

CERATIZIT has succeeded in offering a completely new<br />

and stable system which shows great performance<br />

capacity and flexibility. This is where I can see an<br />

essential advantage compared to competitors.”<br />

37


38<br />

ZRINSKI, CROATIA<br />

Aluminum comp<strong>on</strong>ent<br />

A ZRINSKI employee checking the quality of an<br />

aluminum comp<strong>on</strong>ent<br />

Find the right tooling partner:<br />

ZRINSKI Tehnologija machines<br />

with CERATIZIT<br />

Applicati<strong>on</strong> report at ZRINSKI Tehnologija in Croatia<br />

CERATIZIT customer ZRINSKI Tehnologija in Northern<br />

Croatia has already filled half of its new hall with CNC<br />

machines. Marijan Cepanec, producti<strong>on</strong> manager for<br />

turning, explains: “We still have a lot of plans. At the<br />

moment we have 18 machine plants, and another four are<br />

planned for this year.”<br />

ZRINSKI Tehnologija is an affiliate of the German ZRINSKI<br />

AG and over the years has become an expert in the field<br />

of design and producti<strong>on</strong> of high-quality special products:<br />

medical systems, aerospace comp<strong>on</strong>ents, mechanical<br />

engineering, precisi<strong>on</strong> engineering and antenna instal-<br />

lati<strong>on</strong>. Using aluminum, titanium and other <strong>material</strong>s ZRINSKI<br />

Tehnologija produces spine implants, b<strong>on</strong>e plates,<br />

kinematic modules for aircraft seats, watch cases and<br />

surfaces of parabolic reflector antennas. Producti<strong>on</strong> manager<br />

Cepanec states: “Per year we produce up to 2000<br />

seats for Lufthansa’s Business Class, a typical example of<br />

our service: highly precise parts delivered just in time.“<br />

Further premium customers and projects are Siemens<br />

(assemblies and A-parts) and IWC (watch cases) as well<br />

as the core piece for the ‘ear of the world’, the surfaces of<br />

the radio telescopes in the Atacama desert in Chile.<br />

imp:act 01/08<br />

Find the right tooling partner: CERATIZIT<br />

When manufacturing such high-quality products, the<br />

choice of the tooling partner is a crucial decisi<strong>on</strong>. Producti<strong>on</strong><br />

manager Cepanec: “80 per cent of the carbide tools<br />

applied at ZRINSKI Tehnologija are from CERATIZIT. The<br />

demand for tools is very high ranging from drills to<br />

high-speed tools.”<br />

Željko Domislović, producti<strong>on</strong> manager for milling states:<br />

“The great thing about working together with CERATIZIT<br />

is their short resp<strong>on</strong>se time. The tools are always <strong>on</strong> time,<br />

which is <strong>on</strong>e less worry. Tools for test purposes are also<br />

always delivered in a short time. Cooperati<strong>on</strong> is extremely<br />

uncomplicated. Problems are discussed openly and<br />

together we think about how things can be improved<br />

up<strong>on</strong>. In additi<strong>on</strong> there are regular visits, which has<br />

ensured that we are <strong>on</strong> good terms with each other.”<br />

“We are delighted with the cutting tools from CERATIZIT!”<br />

The cutting tool engineers at ZRINSKI Tehnologija know<br />

that CERATIZIT does not <strong>on</strong>ly offer highly efficient<br />

tools for aluminum machining. Domislović: “We are<br />

really delighted with the cutting tools for titanium


Cutting tools for medical systems: ZRINSKI produces titanium implants with<br />

tools from CERATIZIT.<br />

machining. When machining a titanium work piece<br />

(3.7164, Ø21 x 6.46") with a CERATIZIT soluti<strong>on</strong> we<br />

machine 130 parts per cutting edge, which means twice<br />

as much as with the competiti<strong>on</strong>’s product and a higher<br />

spindle revoluti<strong>on</strong> number (1400 rev/min as opposed to<br />

1000).“ “The machines at ZRINSKI Tehnologija operate at<br />

full speed, and it is not easy to find the time for tests“, adds<br />

Aleksander Nišević, CERATIZIT sales manager for Croatia.<br />

“With such results however the tests pay off very quickly.”<br />

Small parts for the kinematic modules of aircraft seats.<br />

ZRINSKI, CROATIA<br />

ZRINSKI produces and mounts a module of the kinematic<br />

modules for the Business Class seats of a leading aircraft<br />

manufacturer. This module c<strong>on</strong>sists of several titanium parts.<br />

From tool mechanic to entrepreneur<br />

Josef Zrinski, born in Croatia, moved to Germany at the<br />

age of 14. In 1984 (Zrinski had in the meantime become<br />

a tool mechanic) he opened his own company. At the<br />

beginning the company specialized in the producti<strong>on</strong><br />

of numbering mechanisms. In 2005 he opened a<br />

sec<strong>on</strong>d company in Croatia. Today the company has 135<br />

employees in Germany and 30 in Croatia. They all have<br />

<strong>on</strong>e goal <strong>on</strong>ly: to be the best in the niche they are working in.<br />

39


HYPERION l<strong>on</strong>g life nozzles<br />

No <strong>material</strong> can resist, no turn is too dif� cult. BARTON, the brand for innovative,<br />

ec<strong>on</strong>omical soluti<strong>on</strong>s for waterjet cutting, presents the HYPERION l<strong>on</strong>g life<br />

nozzle. Exclusively supplied by CERATIZIT. Experience cutting perfecti<strong>on</strong>.<br />

Bart<strong>on</strong> Mines Company, LLC. www.bart<strong>on</strong>.com Tel.: (800) 741-7756 E-mail: info@bart<strong>on</strong>.com


Water cutting technology<br />

Technology:<br />

Cutting with a high power water jet has an ever increasing<br />

number of applicati<strong>on</strong> fields. The cutting principle<br />

is based <strong>on</strong> a water jet focused by means of a nozzle<br />

system and the producti<strong>on</strong> of extremely high pressure (up<br />

to 4,000 bar). The focused water jet reaches a speed of<br />

up to 2,950ft/sec. Depending up<strong>on</strong> the <strong>material</strong> which<br />

has to be worked, the cutting operati<strong>on</strong> is carried out with<br />

pure water or by adding abrasive <strong>material</strong>s.<br />

Advantages:<br />

The comp<strong>on</strong>ents are cut at room temperature, i.e. no<br />

thermal stress occurs. Only <strong>on</strong>e ‘tool’, the water jet,<br />

is applied for all <strong>material</strong>s. The forces are low so that<br />

tensi<strong>on</strong> in the comp<strong>on</strong>ents is completely avoided.<br />

Virtually all <strong>material</strong>s up to a thickness of 5.9" can be<br />

worked without problems utilizing this technology:<br />

metallic <strong>material</strong>s, st<strong>on</strong>e and ceramic, plastic, composite<br />

<strong>material</strong>s, sealing <strong>material</strong>s and even food. Cleanness is<br />

<strong>on</strong>e of the aspects that has to be pointed out in particular<br />

as unlike thermal procedures this technology does not<br />

produce any exhaust or other problematic emissi<strong>on</strong>s.<br />

Industry sectors:<br />

Water jet technology is mainly applied in the following<br />

sectors: mechanical engineering in general, automotive<br />

and aerospace industry, packaging industry, medical<br />

systems and electrical industry.<br />

The cutting head:<br />

The cutting head is particularly significant for both the<br />

result of the cutting operati<strong>on</strong> and process security.<br />

One of the key comp<strong>on</strong>ents is the focusing tube which<br />

is decisive for the focusing capacity of the abrasive jet.<br />

CERATIZIT has in-depth know-how regarding the development<br />

and producti<strong>on</strong> of focusing tubes. (Picture: cutting<br />

head with focusing tube)<br />

CERATIZIT UltraMant focusing tubes<br />

The “UltraMant“ brand is syn<strong>on</strong>ymous with carbide alloys<br />

of utmost wear resistance. The requested cutting quality<br />

remains c<strong>on</strong>sistent over a l<strong>on</strong>g period of applicati<strong>on</strong>.<br />

Close hole tolerances, perfect grinding and c<strong>on</strong>centricity<br />

are additi<strong>on</strong>al advantages of the CERATIZIT<br />

focusing tube. CERATIZIT focusing tubes are suitable<br />

WATER CUTTING TECHNOLOGy<br />

for all modern cutting head systems and support automatic<br />

centering when clamping the tube. A well-<br />

structured warehouse guarantees quick delivery. Extensive<br />

technical advice is a part of the service we offer to our<br />

customers.<br />

41


42<br />

’Cutting Tool’ Divisi<strong>on</strong><br />

Business unit ’End users’<br />

SECTOR / SEGMENT cutting tool soluti<strong>on</strong>s for...<br />

Automotive crankshafts<br />

motor units<br />

brake systems<br />

pumps / turbo chargers<br />

running gears / power train<br />

Energy and transport aerospace<br />

railway vehicles<br />

turbines<br />

electric engines<br />

Mechanical engineering roller bearings<br />

machine manufacturers<br />

rolls / bars<br />

Oil industry tubes / couplings<br />

Distributi<strong>on</strong> partners turning / milling / parting and grooving /<br />

drilling and boring<br />

Business unit ’Tool manufacturers’<br />

SECTOR / SEGMENT CERATIZIT specialities<br />

Manufacturers of solid carbide and rods and blanks, sintered and ground,<br />

brazed precisi<strong>on</strong> tools brazed inserts and inserts<br />

Suppliers of inserts and tooling systems, standard and special inserts,<br />

tooling systems precisi<strong>on</strong>-sintered or preground blanks


’Wear Part’ Divisi<strong>on</strong><br />

Business unit ’Wood and st<strong>on</strong>e’<br />

SECTOR / SEGMENT CERATIZIT specialities<br />

Wood and st<strong>on</strong>e working saw tips, blanks, indexable knives,<br />

inserts, drill tips,<br />

rods (round, rectangular, with profile)<br />

Writing instruments balls<br />

Business unit ’Industrial wear parts’<br />

SECTOR / SEGMENT CERATIZIT specialities<br />

Paper, plastic and metal industry round, l<strong>on</strong>g and special knives<br />

Medical systems blanks for dental instruments,<br />

holders for surgical needles<br />

Electr<strong>on</strong>ics, electrical engineering blanks for circuit board drills<br />

Tool and mould making blanks for punching tools, blanks for powder compacting tools,<br />

nozzles for plastic injecti<strong>on</strong> moulding<br />

Metal forming technology dies for screw producti<strong>on</strong>, nail making tools,<br />

drawing tools, hot rolls<br />

Textile and tobacco industry sleeves, textile cutting parts, discs<br />

Precisi<strong>on</strong> tool manufacturers blanks for circular knives, blanks for hobs<br />

Automotive valves, injecti<strong>on</strong> pist<strong>on</strong>s, sleeves, tappets<br />

Special industry applicati<strong>on</strong>s high-pressure tools, lock parts,<br />

c<strong>on</strong>structi<strong>on</strong> parts, recycling,<br />

water-jet nozzles, seal rings<br />

43


<str<strong>on</strong>g>stories</str<strong>on</strong>g> <strong>on</strong> <strong>hard</strong> <strong>material</strong> <strong>matters</strong><br />

0464 EN|USA 01.08

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