stories on hard material matters - Ceratizit S.A.
stories on hard material matters - Ceratizit S.A.
stories on hard material matters - Ceratizit S.A.
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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