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 />
Product of the Year<br />
MaxiMill 211 with HyperCoat coating for<br />
ec<strong>on</strong>omic milling - a game you will win!
Titanium machining with CERATIZIT<br />
CERATIZIT engineers thoroughly studied the characteristics of titanium<br />
and designed a machining soluti<strong>on</strong> for this <strong>material</strong> <strong>on</strong>ly.<br />
The result is a perfect symbiosis of tungsten carbide, geometry and<br />
coating expertise - a symbiosis titanium cannot resist.<br />
www.ceratizit.com
Today, CERATIZIT is already the world-market leader<br />
for carbide products in wood and st<strong>on</strong>e machining<br />
as well as Europe‘s largest supplier for industrial<br />
wear parts. The group is also gaining strength in<br />
the USA where we are 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 exclu-<br />
sive soluti<strong>on</strong>s for the automotive, engineering,<br />
aerospace and oilfield sectors. We want to strive for<br />
c<strong>on</strong>tinuous organic growth above average worldwide.<br />
Ever since its foundati<strong>on</strong> CERATIZIT has grown notably<br />
quicker than the market. This is how we wantto c<strong>on</strong>tinue,<br />
am<strong>on</strong>gst others through targeted acquisiti<strong>on</strong>s. In this<br />
c<strong>on</strong>text new companies have to adapt to the CERATIZIT<br />
group strategically, culturally and also financially. With a<br />
turnover of approx. 600 milli<strong>on</strong> euros the carbide producer<br />
ranks am<strong>on</strong>g the TOP 5 worldwide. We are now striving for<br />
a turnover of <strong>on</strong>e billi<strong>on</strong> euros by 2012. In order to reach<br />
this ambitious goal we have several levers that we can<br />
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.<br />
CERATIZIT is excellently positi<strong>on</strong>ed in the NAFTA area, which is<br />
still the strategically most important market in the world. We<br />
have companies in the USA and in Mexico where we have<br />
been gaining market shares for years. After the acquisiti<strong>on</strong><br />
of Newcomer Products last year CERATIZIT has become a<br />
‘household name’ also in the American Cutting Tool sector.<br />
Latin America for us is an independent market with high<br />
potential. For years the company has achieved doubledigit<br />
growth rates, and after Eastern Europe and East Asia,<br />
Latin America will remain the growth regi<strong>on</strong> where we will be<br />
investing most intensively. East Asia is at the top of our<br />
A WORD<br />
FROM THE BOARD<br />
A WORD FROM THE BOARD<br />
agenda, as we have companies in the three most important<br />
markets, China, Japan and India which c<strong>on</strong>tribute in a<br />
higher-than-average way to the group’s growth. We will<br />
certainly press ahead with our 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 be<br />
moving our entire producti<strong>on</strong> to low-wage countries as we<br />
obviously want to maintain our high standard with regard to<br />
quality, products and services and above all our customer<br />
proximity. This however does not rule out producti<strong>on</strong> being<br />
transferred in single cases.<br />
In the framework of our current project, FOCUS FUTURE, our<br />
aim is to interlock producti<strong>on</strong> and sales, also geographically,<br />
in such a way that the customer‘s requests are fulfilled as<br />
quickly and efficiently as possible. At the moment this project<br />
“We prefer to be the number 1 in selected segments than the<br />
number 3 overall”, says Board member Wolter.<br />
basically c<strong>on</strong>cerns the West European producti<strong>on</strong> sites.<br />
But the more we grow in Asia and Latin America, the more<br />
we will extend our producti<strong>on</strong> in these regi<strong>on</strong>s to maintain<br />
customer proximity.<br />
We want to optimize all the processes which are necessary<br />
to fulfil the customer’s requests. For this purpose we have to<br />
c<strong>on</strong>tinuously increase efficiency in all areas, i.e. research &<br />
development, acquisiti<strong>on</strong>, sales, producti<strong>on</strong> and logistics.<br />
CERATIZIT and our employees have already attained a lead<br />
over competitors.<br />
Thierry Wolter<br />
Member of the Executive Board<br />
thierry.wolter@ceratizit.com<br />
03
04<br />
CONTENTS<br />
03<br />
06<br />
07<br />
08/09<br />
10/11<br />
12/13<br />
15<br />
16/17<br />
18/21<br />
22/23<br />
24/25<br />
26<br />
27<br />
28/29<br />
30<br />
31<br />
32/33<br />
34/35<br />
36/37<br />
38/41<br />
42/43<br />
A word from the Board<br />
Thierry Wolter<br />
Presentati<strong>on</strong><br />
High Speed Machining<br />
Plansee Seminar 2009<br />
- from 25 to 29 May in Reutte, Austria<br />
Trilogy <strong>on</strong> ship building<br />
Aerodyn - machining of propelling screws<br />
Trilogy <strong>on</strong> ship building<br />
SCANA - machining of motor shafts<br />
Trilogy <strong>on</strong> ship building<br />
Outokumpu - machining of<br />
stainless steel<br />
MAC coolant set<br />
Dry aluminium machining<br />
Metaldyne India<br />
Automotive machining<br />
Audi Hungaria<br />
Crankshaft machining<br />
Leicht + Müller<br />
Stamping technology<br />
Hilti<br />
Drill manufacturer<br />
MaxiMill HEC<br />
High Efficiency Cutting<br />
Change in leadership<br />
CERATIZIT Germany<br />
MSS-SX<br />
Blade system for parting and grooving<br />
Coated CBN<br />
World innovati<strong>on</strong> from CERATIZIT<br />
MaxiMill HFC<br />
High Feed Cutting<br />
Rado<br />
Carbide watch cases<br />
Zrinski Tehnologia<br />
- has found the right tooling partner<br />
Titanium machining of<br />
the future - CTC5240<br />
VM Motori, Italy<br />
Manufacturer of Diesel engines<br />
HPC 12<br />
High Performance Cutting<br />
1<br />
2<br />
3<br />
1<br />
2<br />
imp:act 01/08
3<br />
IMP:ACT 01/08<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 />
7 TH INTERNATIONAL CONFERENCE ON HIGH SPEED MACHINING<br />
CERATIZIT at the 7 th Internati<strong>on</strong>al<br />
C<strong>on</strong>ference <strong>on</strong> High Speed<br />
Machining<br />
From 28 to 29 May 2008 in Darmstadt the renowned<br />
internati<strong>on</strong>al c<strong>on</strong>ference <strong>on</strong> the topic of high speed<br />
machining took place at the brand new c<strong>on</strong>ference<br />
centre ’Darmstadtium’. The impetus for the idea of<br />
the main topic of this c<strong>on</strong>ference <strong>on</strong> high speed<br />
machining (which is held every two years) came from<br />
the American aerospace industry in 1975.<br />
It was the first time then that significantly higher<br />
cutting speeds were proposed for industrial applica-<br />
ti<strong>on</strong>s in aluminium comp<strong>on</strong>ent machining. In this<br />
c<strong>on</strong>text the following advantages were shown during<br />
the first tests: improved surface qualities combined<br />
with notably increased machining efficiency, reduced<br />
cutting forces combined with a higher metal removal<br />
rate, and enhanced precisi<strong>on</strong> of the comp<strong>on</strong>ents<br />
thanks to better heat transfer into the swarf. In order<br />
to achieve this, new machines had to be designed<br />
which were able to operate with high-performance<br />
spindles and high machine dynamics. Today such<br />
high-speed processes enable five to ten times higher<br />
cutting speeds than c<strong>on</strong>venti<strong>on</strong>al processes in the<br />
aerospace industry, are applied in the field of mould<br />
and die c<strong>on</strong>structi<strong>on</strong> and in the automotive industry.<br />
The resulting demands <strong>on</strong> comp<strong>on</strong>ent geometry,<br />
machine c<strong>on</strong>cept, machining strategy and tools have<br />
been presented to and discussed by a large audience<br />
in the framework of this internati<strong>on</strong>al c<strong>on</strong>ference since<br />
the 1990’s. In two days over 120 participants listened to<br />
up-do-date presentati<strong>on</strong>s of the topics of process stabi-<br />
lity, dry machining, machines and tools, simulati<strong>on</strong>,<br />
imp:act 01/08<br />
modelling, spindle systems and <strong>hard</strong> machining, while<br />
visiting the various booths. Obviously CERATIZIT could<br />
not miss this occasi<strong>on</strong>. Dr. Schleinkofer gave a presentati<strong>on</strong><br />
<strong>on</strong> high-speed machining when using ceramic<br />
<strong>material</strong>s, and in the exhibiti<strong>on</strong> area close by the visitors<br />
could inform themselves about the competences<br />
of the CERATIZIT group.<br />
“A large expert audience c<strong>on</strong>sisting of machine<br />
manufacturers, tool producers and operators were<br />
provided with up-to-date informati<strong>on</strong> <strong>on</strong> all aspects of<br />
high-speed machining. In particular the new methods<br />
of machining process analysis (based <strong>on</strong> the machine,<br />
the work piece and the tool) were extremely interesting.”<br />
Dr. Uwe Schleinkofer<br />
Dr. Uwe Schleinkofer, head of the cutting tool development department. CERATIZIT tools for high-speed machining.
PLANSEE organises 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 17 th Plansee Seminar will<br />
cover all market segments where products made from<br />
high performance P/M <strong>material</strong>s (metals, composites<br />
and <strong>hard</strong> <strong>material</strong>s) are currently playing an important<br />
role, or where they offer promising alternatives to<br />
current <strong>material</strong> soluti<strong>on</strong>s.<br />
Message from the Secretary<br />
The 17 th Plansee Seminar <strong>on</strong> Powder Metallurgical High<br />
Performance Materials will take place at the head-<br />
quarters 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> mate-<br />
rials to participate in this event. A special invitati<strong>on</strong> is<br />
extended to students and young scientists engaged in<br />
the field of powder metallurgy. Since we gathered at<br />
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<br />
metal powders. At the same time, resp<strong>on</strong>sibility for our<br />
PLANSEE SEMINAR 2009<br />
envir<strong>on</strong>ment impels us to critically review the amount of<br />
energy c<strong>on</strong>sumed in the manufacture of P/M products.<br />
This poses the challenge of further optimizing the overall<br />
<strong>material</strong> efficiency, e.g. by near-net-shape forming<br />
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>ti-<br />
nue to play a key role in increasing the efficiency of<br />
all 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<br />
well <strong>on</strong> the way.<br />
In this c<strong>on</strong>text the Plansee Seminar will <strong>on</strong>ce<br />
again serve as a global forum to define the current<br />
status of the science and technology of powder<br />
metals and <strong>hard</strong> <strong>material</strong>s. It will also provide a guideline<br />
for the directi<strong>on</strong> of the developments that we should<br />
embark <strong>on</strong>.<br />
Peter Rödhammer<br />
Secretary of the Plansee Seminar<br />
07
08<br />
SHIP BUILDING TRILOGY 1/3 - AERODYN<br />
Full speed ahead with cutting<br />
inserts from CERATIZIT!<br />
The Swedish shipbuilding company Aerodyn increases depth of cut<br />
by 50 %, thus doubling tool life<br />
From the left: Hans Axelss<strong>on</strong> (CERATIZIT sales manager Lars Anderss<strong>on</strong><br />
(Aerodyn managing director), Petri Piippo and Chung To (both of them<br />
Aerodyn employees) find the increase in productivity gratifying which<br />
they have achieved together.<br />
The Swedish company Aerodyn specialises in the<br />
machining of blades for propelling screws. The cast skin is<br />
eliminated and the profile finished through milling. After<br />
milling the surfaces are carefully polished. In this way,<br />
since the year 2000, several projects have been realized<br />
in close cooperati<strong>on</strong> with the carbide expert<br />
CERATIZIT and productivity increased.<br />
Propelling screw in applicati<strong>on</strong><br />
The propelling screw c<strong>on</strong>verts the<br />
energy produced by the motor<br />
into moti<strong>on</strong>. The propeller blades<br />
are characterised by a hydrodynamic<br />
wing profile. The blades<br />
are designed in such a way that<br />
the water streams around them<br />
asymmetrically when they rotate. A<br />
difference of pressure is caused in or<br />
c<strong>on</strong>trary to the directi<strong>on</strong> of movement.<br />
A current called `thrust´ is generated<br />
and drives the vessel.<br />
5-axis milling centres for propelling blades<br />
Aerodyn was founded in 1989 and first produced<br />
imp:act 01/08<br />
Laser-aided: an Aerodyn employee measures the cast blade, and<br />
determines the milling procedure.<br />
comp<strong>on</strong>ents for the aerospace industry: this is where<br />
the company name comes from. The company is<br />
based in the Swedish Karlskoga and has 40 employees<br />
who now specialise in the machining of propelling<br />
screws. In this special field Aerodyn is <strong>on</strong>e step ahead.<br />
The secret: Aerodyn was <strong>on</strong>e of the first companies to<br />
utilize 5-axis machining centres for the machining of<br />
this kind of blade. Previously, they used to be ground,<br />
not milled.<br />
Per year the Aerodyn employees machine between<br />
500 and 700 blades and numerous other comp<strong>on</strong>ents<br />
for propulsi<strong>on</strong> systems of super oil tankers, freight<br />
vessels and cruise liners. The blades, cast in br<strong>on</strong>ze or<br />
stainless steel, weigh between 80 kilos and 5 t<strong>on</strong>s and<br />
are shipped directly to the company which equips<br />
the vessels with them. There they are assembled as<br />
propelling screws. The cycle time of <strong>on</strong>e blade at<br />
Aerodyn ranges from two to three weeks or three<br />
m<strong>on</strong>ths, depending <strong>on</strong> its complexity and size. The<br />
propelling screw has two to seven blades. Propelling<br />
screws for ice-breaking vessels are normally made of<br />
stainless steel. 75 % of Aerodyn’s blades are made of<br />
br<strong>on</strong>ze, the others of stainless steel.
Maximum quality requirements – surface quality is<br />
decisive<br />
Aerodyn’s quality requirements are extremely high. The<br />
customers’ specificati<strong>on</strong>s c<strong>on</strong>cerning both strength<br />
and form are very precise, in fact a surface roughness<br />
of R a 1.6 is often demanded. Furthermore the weight<br />
of the single propeller blades should not differ from<br />
each other. With a given weight of the blades of 3.8<br />
t<strong>on</strong>s the tolerance is <strong>on</strong>ly 6 kilos, in a very fast vessel<br />
the difference in weight must not exceed <strong>on</strong>e kilo. For<br />
every order independent audits are carried out before<br />
the products are released.<br />
Productivity increase with CERATIZIT tools<br />
In recent years several projects in the field of cutting<br />
tools have been realized in close cooperati<strong>on</strong> between<br />
SHIP BUILDING TRILOGY 1/3 - AERODYN<br />
the Swedish Aerodyn sales and the CERATIZIT Energy<br />
& Transport segment. The CERATIZIT inserts -M31 CTC<br />
5235 with HyperCoat-coating have, for instance,<br />
been applied now for several m<strong>on</strong>ths. And the results<br />
are stunning. “Applying the CTC5235 inserts we have<br />
been able to increase the cutting depth by 50% and<br />
simultaneously double tool life. I d<strong>on</strong>’t think we need to<br />
go into more detail here“, says a satisfied Petri Piippo,<br />
producti<strong>on</strong> manager at Aerodyn.<br />
Lars Anderss<strong>on</strong>, Aerodyn managing director, <strong>on</strong> the<br />
questi<strong>on</strong> about the particular advantages of working<br />
together with CERATIZIT states: “Quality, service and<br />
market-adapted prices are the characteristics of<br />
CERATIZIT. We also appreciate the possibility to be able<br />
to order <strong>on</strong>line via the E-TechStore at CERATIZIT.”<br />
The propeller blades are characterised by a hydrodynamic wing profile: blades weigh between 80 kilo and 5 t<strong>on</strong>s. Propelling screws for ice-breaking<br />
vessels are normally made of stainless steel.<br />
09
SHIP BUILDING TRILOGY 2/3 - SCANA<br />
Motor shafts <strong>on</strong> the high seas –<br />
customer story from CERATIZIT<br />
Scana relies <strong>on</strong> CERATIZIT’s competence in ship building<br />
2No matter whether it is a tanker or a luxury cruise liner,<br />
a motor yacht or a passenger ferry - all these vessels<br />
have <strong>on</strong>e thing in comm<strong>on</strong>: shafts transmit the force<br />
from the engine to the propeller. The producti<strong>on</strong><br />
of such shafts is a speciality of the<br />
Scana company. For turning ope-<br />
rati<strong>on</strong>s, Scana relies <strong>on</strong> inserts and<br />
tools from CERATIZIT.<br />
10<br />
Scana Björneborg in Sweden is<br />
part of the Norwegian Scana<br />
Industrier ASA, which manufactures<br />
steel products for the<br />
following five industry sectors:<br />
energy (comp<strong>on</strong>ents for generators<br />
and turbines), ship building<br />
(propeller shafts and hubs),<br />
machines and transport (axles,<br />
clutches and forks for fork lifts), steel<br />
(rolls, forged comp<strong>on</strong>ents and profiles)<br />
and offshore products (valves and joints for drilling<br />
platforms). The entire group has 1,850 employees, 320<br />
at the Björneborg site.<br />
Inserts for internati<strong>on</strong>al customers<br />
The Björneborg site looks back <strong>on</strong> a l<strong>on</strong>g forging<br />
traditi<strong>on</strong>: the first forge was built as far back as 1656.<br />
Scana Björneborg has its own steelwork, its own forge<br />
with a 3600/4500 t<strong>on</strong> press, a facility for heat treatment<br />
and a machine hall for finishing. Per year about 2,500<br />
For the turning of shafts (this <strong>on</strong>e here is 25 metres l<strong>on</strong>g) Scana relies <strong>on</strong><br />
inserts and tools from CERATIZIT.<br />
imp:act 01/08<br />
products are manufactured for ABB, Siemens, Rolls<br />
Royce, DEW, Wärtsilä, Metso and Shell. In the field of<br />
turning Scana applies inserts and tools from CERATIZIT.<br />
The roughing of a propeller shaft takes between 15 and 30 hours.
Interview with Magnus Dåverhög, producti<strong>on</strong><br />
and process engineer at Scana:<br />
Which <strong>material</strong> are the shafts made of?<br />
Dåverhög: “The shafts are made of steel. The alloy is<br />
adapted to the applicati<strong>on</strong> and requirements. Every<br />
product we manufacture is therefore unique.”<br />
Where do you buy the steel?<br />
Dåverhög: “We buy steel scrap within a radius of 150<br />
km and melt it ourselves. The waste produced at our<br />
company during machining is also recycled. The raw<br />
<strong>material</strong> department machines about 80,000 t<strong>on</strong>s of<br />
steel per year. We use 100 different steel grades.”<br />
How much swarf is produced per m<strong>on</strong>th?<br />
Dåverhög: “That depends <strong>on</strong> the parts we machine. On<br />
average these are around 1000 t<strong>on</strong>s per m<strong>on</strong>th.”<br />
How l<strong>on</strong>g does it take <strong>on</strong> average to machine a shaft?<br />
Dåverhög: “After forging the shafts are subject to heat<br />
treatment and are then transported to the machine hall.<br />
Most of the time the parts are <strong>on</strong>ly rough machined,<br />
which takes between 15 and 30 hours. If the shaft has to<br />
be finish-machined (as in the case of naval shafts) we<br />
are talking about several hundred hours.”<br />
What is so special about this kind of machining?<br />
Dåverhög: “We produce shafts with a length up to 25<br />
metres and a diameter of up to two metres. All shafts<br />
are produced through open-die forging. As every shaft<br />
is unique, their manufacture can be c<strong>on</strong>sidered as a<br />
SHIP BUILDING TRILOGY 2/3 - SCANA<br />
Magnus Dåverhög, producti<strong>on</strong> and process engineer at Scana.<br />
special art. It takes many years to train a good machine<br />
operator so that he is able to carry out turning and<br />
milling operati<strong>on</strong>s reliably. We are therefore very happy<br />
to have more than 350 years of experience at the<br />
Björneborg site!”<br />
How do you assess the relati<strong>on</strong>ship of Scana and<br />
CERATIZIT?<br />
Dåverhög: “We strive c<strong>on</strong>tinuously to optimize our<br />
processes. In this respect the tools in the workshop are<br />
an important element. We work together very closely<br />
with some companies, and CERATIZIT is <strong>on</strong>e of them.<br />
CERATIZIT always provides tools which corresp<strong>on</strong>d to the<br />
state of the art of carbide technology.”<br />
Scana Björneborg has wide experience in the manufacture of l<strong>on</strong>g products. The first forge was built as far back as 1656.<br />
11
12<br />
SHIP BUILDING TRILOGY 3/3 - OUTOKUMPU<br />
Building bridges in the world with<br />
CERATIZIT<br />
Carbide expert CERATIZIT helps with the machining of stainless steel<br />
for giant tankers and bridges<br />
Stainless steel is a <strong>material</strong> which is difficult to machine.<br />
It is characterized by low thermal c<strong>on</strong>ductivity and a<br />
relatively high tendency to cold <strong>hard</strong>ening; it is tough<br />
and tends to adhesi<strong>on</strong>. The c<strong>on</strong>sequence: its machinability<br />
is four times worse than the <strong>on</strong>e of machining<br />
steel. A big challenge, as shown by the example of the<br />
CERATIZIT customer Outokumpu in Degerfors in Sweden.<br />
Stainless steels are very popular thanks to their particular<br />
properties. The <strong>material</strong> has an aesthetic appearance,<br />
is resistant to corrosi<strong>on</strong> and can be recycled completely.<br />
It is mainly applied in the fields of catering and<br />
household (33%), c<strong>on</strong>structi<strong>on</strong> of industrial plants (26%)<br />
and transport (16%). Stainless steel c<strong>on</strong>sists of at least<br />
10.5% to 13 % of chrome. Thanks to this high chrome<br />
c<strong>on</strong>tent, a protective passive layer of chrome oxide<br />
is created <strong>on</strong> the work piece surface. Stainless steel is<br />
mainly used in sectors where cleanliness and hygiene<br />
are of utmost importance. In fact this steel is resistant to<br />
water, vapour, humidity, salt, acids in food and weak<br />
organic or inorganic acids.<br />
Know-how for high-tech bridge c<strong>on</strong>structi<strong>on</strong><br />
The Outokumpu group achieves a turnover of six billi<strong>on</strong><br />
euros with 8,000 employees worldwide. The visi<strong>on</strong> of the<br />
group is to become the unc<strong>on</strong>tested number 1 in the<br />
stainless steel sector.<br />
3<br />
The Outokumpu plant in Degerfors mainly<br />
manufactures stainless steel flat and<br />
l<strong>on</strong>g products. “We have a very<br />
wide product range and countless<br />
applicati<strong>on</strong>s are possible”, says<br />
Business Development Manager<br />
Anders Finnås. One of our<br />
speciality fields is ship and bridge<br />
building. The company produces<br />
sheet metal for the internal<br />
panelling of tankers which transport<br />
chemical products. In the field<br />
of high-tech bridge c<strong>on</strong>structi<strong>on</strong> the<br />
company‘s know-how lies primarily in<br />
the producti<strong>on</strong> of sheet metal and structural<br />
parts made of stainless steel. “Both appearance<br />
and corrosi<strong>on</strong> resistance play a very important<br />
role. A bridge in stainless steel is not <strong>on</strong>ly technically<br />
interesting but also has a l<strong>on</strong>ger service life, and is also<br />
visually appealing thanks to the <strong>material</strong>,“ says Finnås.<br />
A prestige project in H<strong>on</strong>g K<strong>on</strong>g: St<strong>on</strong>ecutters Bridge.<br />
An Outokumpu employee checks the milling cutters.<br />
imp:act 01/08<br />
St<strong>on</strong>ecutters Bridge in the H<strong>on</strong>g K<strong>on</strong>g harbour: a<br />
prestige project<br />
In H<strong>on</strong>g K<strong>on</strong>g at the moment <strong>on</strong>e of the l<strong>on</strong>gest cablestayed<br />
bridges in the world is being built: St<strong>on</strong>ecutters<br />
Bridge. From 2009 <strong>on</strong>wards this highway bridge will relieve<br />
the city centre of c<strong>on</strong>tainer trucks and serve as a prominent<br />
gateway to the harbour of the city. The bridge’s<br />
structural system will have a width of 51 m and will be<br />
provided with 4 lanes in every directi<strong>on</strong> plus a breakdown<br />
lane. The total length of the bridge will amount to<br />
1596 metres with a span of 1018 metres.
Due to the saline air and the str<strong>on</strong>g gale-force winds in<br />
H<strong>on</strong>g K<strong>on</strong>g the upper 120 metres of the 300 metres high<br />
bridge pyl<strong>on</strong>s were cladded with high-tensile stainless<br />
steel (duplex) by Outokumpu. The company produced<br />
both the cladding elements made of stainless steel (all<br />
in all 2,000 t<strong>on</strong>s) and the anchoring of the main bearer<br />
cables. What is so special about it? The duplex stainless<br />
steel will need no maintenance work for the entire<br />
service life of the bridge.<br />
More than <strong>on</strong>ly stainless steel sheets<br />
Outokumpu however does not <strong>on</strong>ly supply stainless steel<br />
sheets. The company supports customers with regard to<br />
<strong>material</strong> selecti<strong>on</strong>, planning and c<strong>on</strong>structi<strong>on</strong> during the<br />
entire project and optimally prepares the sheet metal<br />
with perfect surface treatment, precise form and joints<br />
tailored to the welders’ needs.<br />
High demands with regard to the CERATIZIT inserts<br />
The CERATIZIT cutting inserts are used at Outokumpu<br />
for the preparati<strong>on</strong> of joints. With the HyperCoat grade<br />
CTP2235 Outokumpu mills the most varied joint profiles.<br />
Stainless steel is a <strong>material</strong> which is difficult to machine.<br />
Internal cladding in stainless steel in a tanker that transports chemical <strong>material</strong>s.<br />
SHIP BUILDING TRILOGY 3/3 - OUTOKUMPU<br />
For example, its thermal c<strong>on</strong>ductivity is <strong>on</strong>ly a third of the<br />
thermal c<strong>on</strong>ductivity of machining steel. For this reas<strong>on</strong><br />
the heat that is produced during machining can <strong>on</strong>ly be<br />
evacuated insufficiently through the swarf. The tendency<br />
towards work <strong>hard</strong>ening is relatively high. This means<br />
that after a first machining step the <strong>material</strong> <strong>on</strong> the<br />
surface becomes <strong>hard</strong>er than before, so the cutting edge<br />
needs to perform even better in the sec<strong>on</strong>d operati<strong>on</strong>.<br />
Furthermore, stainless steel is particularly tough, has a<br />
relatively high tendency to adhesi<strong>on</strong> and bad chip<br />
formati<strong>on</strong>. This is why its machinability is four times<br />
worse than the <strong>on</strong>e of machining steel. Especially for<br />
Outokumpu CERATIZIT has developed the cutting<br />
insert SEAN250161 and offers a tailored soluti<strong>on</strong> for the<br />
machining of stainless steel. The inserts are used in a strip<br />
edge milling cutter by Outokumpu. In this way the ideal<br />
tool is created for the machining of difficult <strong>material</strong>s<br />
such as stainless steel. Good clamping, small tool overhang<br />
and small corner radius or radius of the cutting<br />
edge are decisive to avoid vibrati<strong>on</strong> and cutting forces.<br />
Sufficient cutting depth should be applied so that the<br />
cutting edges in the following operati<strong>on</strong> interact as little as<br />
possible with the cold formed layer.<br />
13
MaxiMill 211 – make the c<strong>on</strong>necti<strong>on</strong>!<br />
1: Win with performance, 2: Win <strong>on</strong> quality,<br />
3: Win time savings, 4: Win tool life.<br />
MaxiMill 211 with HyperCoat coating for ec<strong>on</strong>omic milling -<br />
a game you will win!
World innovati<strong>on</strong>: machining of<br />
aluminium wheels now<br />
without coolant<br />
Benefit from savings with the new MAC tool from CERATIZIT<br />
One of the special fields of the carbide expert CERATIZIT<br />
is aluminium wheel machining. The recently developed<br />
MAC system now allows the complete dry machining of<br />
wheels without refitting machines. In this way CERATIZIT<br />
<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 aluminium 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 20 cent per kilo or approximately <strong>on</strong>e<br />
euro per wheel. For tens of thousands of aluminium rims<br />
where dry machining is applied instead of wet machining<br />
attractive saving is realized very quickly. With the latest<br />
world innovati<strong>on</strong> MAC from CERATIZIT, aluminium rim<br />
producers can save m<strong>on</strong>ey, optimize their profit and<br />
distinguish themselves from competitors.<br />
Ingenious: MAC cools utilizing the Joule-Thoms<strong>on</strong> effect<br />
“There were already various external air cooling<br />
systems available in the market, however, their effect was<br />
satisfactory to a limited degree. The nozzle was too far<br />
away from the tool, too much cold air was lost,” explains<br />
Michael Steiner in charge of the development of<br />
the new MAC tool at the CERATIZIT development<br />
department.<br />
With MAC the CERATIZIT research department has<br />
solved this problem. The cooling unit is directly integrated<br />
into the CERATIZIT tool. The compressed air from the<br />
machine goes through the tool into the MAC unit and is<br />
then cooled to minus temperatures through a physical<br />
effect known as Joule-Thoms<strong>on</strong> effect. Then it imme-<br />
diately hits the insert 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 />
sub-zero range and efficiently cools both work piece<br />
and tool. About 6 bar and 400 l/min capacity are the<br />
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<br />
ideally avoids the tendency of adhesi<strong>on</strong> of aluminium.<br />
The cooling intensity depends <strong>on</strong> the quantity of air<br />
supplied, its entrance temperature, the quality of the air<br />
and the tool settings of MAC.<br />
The CERATIZIT programme for dry machining<br />
Currently the following grades are available for dry<br />
machining of aluminium 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<br />
low-fricti<strong>on</strong> properties. Its advantages can mainly be<br />
seen when machining aluminium alloys with low silic<strong>on</strong><br />
c<strong>on</strong>tent (Si ≤ 3 %) in combinati<strong>on</strong> with str<strong>on</strong>g built-up<br />
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<br />
by high abrasi<strong>on</strong> resistance and l<strong>on</strong>g service life. This<br />
grade is particularly suitable for aluminium alloys with<br />
increased silic<strong>on</strong> c<strong>on</strong>tent (Si ≥ 12 %), for polish turning of<br />
mirror faces and the machining of high-quality wheels<br />
and comp<strong>on</strong>ents in aluminium.<br />
The newly developed MAC system from CERATIZIT now allows the<br />
complete dry machining of wheels without refitting machines.<br />
15
16<br />
METALDYNE, INDIA<br />
CERATIZIT customer<br />
report at subc<strong>on</strong>tractor<br />
Metaldyne in India<br />
Metaldyne Managing Director Sabherwal:<br />
“CERATIZIT does not sell bulk products, but engineering”<br />
“Metaldyne believes in the strength of people and<br />
ideas”, Tim Leuliette, chairman of the Metaldyne Board<br />
describes the mainspring that drives the company.<br />
Metaldyne is a leading global designer and supplier<br />
of power train and chassis products for the automotive<br />
industry. Metaldyne has been a CERATIZIT India<br />
customer since 2003.<br />
Metaldyne supplies brands such as Ford, H<strong>on</strong>da, Renault,<br />
Nissan, Toyota and Daimler-Chrysler with high-quality<br />
products. The company has 6500 employees worldwide<br />
and achieves a turnover exceeding 2 billi<strong>on</strong> dollars. The<br />
products range from dampers, exhaust parts, pumps<br />
and assemblies for clutches and differential gears to<br />
suspensi<strong>on</strong> comp<strong>on</strong>ents.<br />
Flywheels for trucks and dampers for cars<br />
The Metaldyne site in Jamshedpur, India, employs 330<br />
people. Here flywheels for trucks and dampers for cars<br />
are produced. The products arrive as cast ir<strong>on</strong> compo-<br />
nents and are then machined with CERATIZIT tools. Per<br />
m<strong>on</strong>th around 4,500 flywheels are manufactured by<br />
Metaldyne. It takes 13 minutes to machine a flywheel.<br />
With a cutting edge of the CERATIZIT turning insert<br />
CNMG120408/12EN TFQ in the grade CTC1110,<br />
Metaldyne machines up to 30 flywheels.<br />
Metaldyne Jamshedpur produces about 25,000 ’dampo-<br />
lators’. A ‘dampolator’ is a ring which reduces vibrati<strong>on</strong><br />
of the crankshaft when machining at high or also low<br />
RPM. Six machining operati<strong>on</strong>s are necessary until a<br />
blank is finished. For this purpose the CERATIZIT inserts<br />
CTC11353 and CTC1125 are applied. A damper is<br />
completely machined within <strong>on</strong>ly four minutes. This short<br />
machining time can <strong>on</strong>ly be achieved because tool life<br />
is relatively l<strong>on</strong>g. One cutting edge (CTC1125) can be<br />
used to face turn up to 270 parts and a cutting edge of<br />
CTC1135 does the finish turning for 90 comp<strong>on</strong>ents until<br />
it has to be reversed.<br />
Metaldyne employee balancing a flywheel.<br />
imp:act 01/08<br />
After the flywheel has been machined the external ring is mounted.
Interview with<br />
Sanjay Sabherwal,<br />
Managing Director<br />
Metaldyne India<br />
Mr. Sabherwal, what is most typical of the Indian<br />
industry?<br />
Sabherwal: “I would say the speed, definitely. In 1991<br />
it took about three weeks to get a teleph<strong>on</strong>e installed,<br />
now there are approximately six milli<strong>on</strong> new teleph<strong>on</strong>e<br />
c<strong>on</strong>tracts per m<strong>on</strong>th. This is why India has a telecommunicati<strong>on</strong>s<br />
system which is far more modern than, for<br />
example, the American system. Mobility is also increasing<br />
rapidly: We have so many airline flights now that<br />
we cannot train enough pilots – we employ them from<br />
other countries.”<br />
The automotive industry is booming in India. An example<br />
is Tata presenting its new small-sized and low-budget<br />
car called the `Nano´. What does this mean for the<br />
suppliers to the automotive industry such as Metaldyne?<br />
Sabherwal: “For us this means an incredible price pressure.<br />
Cost reducti<strong>on</strong> is an <strong>on</strong>going process in this industry,<br />
translated into as many parts per minute as possible.<br />
Today the producti<strong>on</strong> volumes are about 1.4 milli<strong>on</strong> cars<br />
and 500,000 trucks per year. These numbers require a<br />
different approach in producti<strong>on</strong>.”<br />
Damper parts for automobile motors before machining.<br />
Sanjay Sabherwal, Managing Director.<br />
METALDYNE, INDIA<br />
What about quality?<br />
Sabherwal: “Quality is taken for granted. Customers are<br />
more interested in process stability and reliability.”<br />
CERATIZIT is your preferred partner for cutting tool<br />
soluti<strong>on</strong>s. Why is CERATIZIT different?<br />
Sabherwal: “CERATIZIT does not sell a commodity, it sells<br />
engineering, and this is what we need. Our customers pay<br />
for designed products with added value, so we design<br />
for our customers. CERATIZIT offers great soluti<strong>on</strong>s which<br />
enable the highest speeds with the best feeds at the<br />
lowest prices! Another plus for CERATIZIT is the enormous<br />
commitment to our company, which is the basis of a<br />
healthy relati<strong>on</strong>ship.”<br />
17
18<br />
CRANKSHAFT MACHINING AT AUDI HUNGARIA<br />
Crankshaft machining<br />
with tailor-made inserts<br />
from CERATIZIT<br />
Report from the CERATIZIT customer Audi Hungaria<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 manufactured.<br />
In Györ the Audi TT Coupé and Roadster is built,<br />
and the Audi A3 Cabriolets will be built there in the future.<br />
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<br />
of crankshafts Audi Hungaria counts <strong>on</strong> the technology<br />
and 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<br />
technological leader in the field of carbide for wear parts<br />
and cutting tools.<br />
Crankshaft machining at Audi<br />
Györ is situated 45 km from the Austrian border, in Hungary,<br />
and numbers 130,000 inhabitants. Since 1994 Audi<br />
Hungaria Motor Kft has been located at the periphery of<br />
the town. Audi selected this site for various reas<strong>on</strong>s: the<br />
logistic c<strong>on</strong>necti<strong>on</strong> is very good, within a radius of 50 km<br />
there are competitive subc<strong>on</strong>tractors, a hall with a<br />
surface of 100,000 sq.m. already existed, and a lot of<br />
people in this area speak German very well. Furthermore<br />
the technical University of Györ ensures that well-trained<br />
engineers and experts are available.<br />
Crankshafts are exposed to enormous forces; their<br />
producti<strong>on</strong> 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<br />
are proud to work here.<br />
imp:act 01/08<br />
In crankshaft machining Audi Hungaria relies <strong>on</strong> seven<br />
different types of inserts from CERATIZIT: special soluti<strong>on</strong>s<br />
CERATIZIT developed together with the machine manufacturer<br />
GFM. Maximum precisi<strong>on</strong> is required. Zoltán<br />
Szathmári explains: “The crankshaft is an essential comp<strong>on</strong>ent<br />
of the engine. It c<strong>on</strong>verts the linear movement into<br />
a rotati<strong>on</strong>al movement. The comp<strong>on</strong>ent is exposed to<br />
enormous forces. We manufacture six different crankshafts.<br />
The crankshafts are supplied in forged c<strong>on</strong>diti<strong>on</strong>. Before<br />
machining, a crankshaft for the 3.0 TDI engine weighs 26<br />
kg, after machining it still weighs as much as 18 kg.“<br />
An Audi employee dismantling a planetary milling cutter. After around<br />
250 crankshafts the inserts in the milling cutter have to be indexed.<br />
Before machining a crankshaft for the 3.0 TDI engine weighs 26 kg, after<br />
machining it still weighs as much as 18 kg.
Three highly modern complete automated producti<strong>on</strong> lines in the huge 100,000 sq.m. 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 BEI AUDI UNGARN<br />
Interview with Zoltán Szathmári, producti<strong>on</strong> planning<br />
and 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<br />
relati<strong>on</strong>ship, there are no secrets. For every new<br />
development we are informed precisely about what<br />
has been improved. CERATIZIT is in a c<strong>on</strong>tinuous<br />
optimizati<strong>on</strong> process and is aware that coming to a<br />
standstill is dangerous, because the pressure is high:<br />
every year we invite tenders for the inserts, every year<br />
there are new test procedures and CERATIZIT has to<br />
assert itself. We have been very successful for four<br />
years.”<br />
19
20<br />
CRANKSHAFT MACHINING AT AUDI HUNGARIA<br />
Interview with László Janó,<br />
product segment V6,<br />
mechanical producti<strong>on</strong><br />
department at<br />
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 opti-<br />
mized. Quality c<strong>on</strong>trol is also very intensive. For the 3.0<br />
TDI engine a 100% rupture test is carried out. For me the<br />
quality of the final product is important, not so much the<br />
share of n<strong>on</strong> c<strong>on</strong>forming <strong>material</strong>. In the last four years<br />
Patrick Zobl, product manager at CERATIZIT,<br />
describes crankshaft machining in detail<br />
Technique for crankshaft machining<br />
• High cutting speeds (up to 260 m/min)<br />
• Planetary milling cutters with diameters ranging from<br />
350mm to 750mm<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 />
<strong>on</strong>ly two crankshafts have been returned to us; this was<br />
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<br />
reduce 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<br />
profile 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 centring<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 />
21
22<br />
LEICHT + MÜLLER, STAMPING INDUSTRY<br />
High pressure, high speed<br />
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<br />
whether it is furniture metal fittings or motor saws, small<br />
plug-in c<strong>on</strong>tacts in computers, mobile ph<strong>on</strong>es or electric<br />
household appliances – we can find stamped parts<br />
practically everywhere. At the Reutte site CERATIZIT<br />
produces carbide erosi<strong>on</strong> blocks and formed parts for<br />
the die industry according to customer drawings. One<br />
of the CERATIZIT customers who has been trusting the<br />
carbide expert for many years already is the<br />
Leicht + Müller 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<br />
a stamping tool. CERATIZIT produces carbide erosi<strong>on</strong><br />
blocks and formed parts from which the customer makes<br />
die inserts and punches through spark erosi<strong>on</strong> (EDM and<br />
wire erosi<strong>on</strong>) or grinding. In fact the business segment<br />
‘tool and die industry’ has gained the world leadership<br />
in the past few years.<br />
The Leicht + Müller success story<br />
The Leicht + Müller Stanztechnik company produces<br />
stamped parts and tools for automotive electrics, telecommunicati<strong>on</strong>,<br />
household appliances and many other<br />
industry sectors. The company was founded in November<br />
1984 by Heinz Leicht, expert toolmaker, and Klaus<br />
Müller, 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 />
Some of the Leicht + Müller products: around a billi<strong>on</strong><br />
of such parts are produced per year.<br />
As far back as 1985 Leicht + Müller also started their<br />
producti<strong>on</strong> of stamped parts. This sec<strong>on</strong>d string to their<br />
bow not <strong>on</strong>ly provided synergy effects but also decisive<br />
growth impulses for the company. Today Leicht + Müller<br />
has 60 employees, who <strong>on</strong> a surface of 5,500 sq.m.<br />
produce approx. 1.3 billi<strong>on</strong> stamped parts (20-80 t<strong>on</strong>s)<br />
per year <strong>on</strong> 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<br />
razor blades which are applied in the latest product<br />
‘FUSION’. The Americans requested a higher output from<br />
Leicht + Müller as compared to the previous technology<br />
applied. In the meantime three complete stamping lines<br />
have been built at L+M which are suitable for batch<br />
producti<strong>on</strong> and have been delivered to Gillette (two<br />
of them in Bost<strong>on</strong>/USA and <strong>on</strong>e in Berlin/Germany).<br />
The most important parameters of the currently most<br />
modern stamping machines worldwide is the notably<br />
higher output, 500 strokes per minute, two blades with 13<br />
laser points per stroke respectively, a cleaning module,<br />
laser measuring device and a camera in the stamping<br />
tool. Furthermore robotics and c<strong>on</strong>veyor belts to<br />
guarantee full automati<strong>on</strong> of the process are also utilized.
Interview with the leading<br />
management 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 were<br />
sometimes even better than with carbide. However,<br />
the applicati<strong>on</strong> of ceramic is not worthwhile c<strong>on</strong>sidering<br />
the high acquisiti<strong>on</strong> costs and the extraordinary<br />
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.<br />
The 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 compo-<br />
nents (plastic-metal composite <strong>material</strong>).<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<br />
Pforzheim based company is also able to offer prototyping<br />
and pilot producti<strong>on</strong>. Last but not least it is involved<br />
in batch producti<strong>on</strong> of stamped parts with Visi<strong>on</strong><br />
C<strong>on</strong>trol for guaranteed product quality and ‘laser<br />
marking <strong>on</strong> the fly’ for 100 per cent traceability (every<br />
single part is provided with a marking without slowing<br />
down the process).<br />
LEICHT + 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 />
An ever increasing number of customers requests<br />
complete assemblies from <strong>on</strong>e source, that means<br />
stamped parts are covered with plastic and provided<br />
with additi<strong>on</strong>al comp<strong>on</strong>ents such as e.g. Reed sensors<br />
or resistances. Since 2004 we have been able to offer<br />
this through 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<br />
in the development and producti<strong>on</strong> of complete<br />
assemblies, i.e. combinati<strong>on</strong>s of metal stamping<br />
products and plastic parts. The new products from<br />
Leicht + Müller SYSCOTEC have brought customers such<br />
as Mercedes, BMW, TRW and C<strong>on</strong>tinental Teves <strong>on</strong>to<br />
the scene. The first batch producti<strong>on</strong> for level sensors in<br />
automotive windscreen washing fluid started in 2005.<br />
23
24<br />
HILTI, DRILL MANUFACTURER<br />
CERATIZIT produces carbide<br />
bits for HILTI drills<br />
Customer story for 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 field<br />
of st<strong>on</strong>e working is based in the Principality of Liechten-<br />
stein. HILTI has been buying all carbide bits from the<br />
carbide expert CERATIZIT since 1985. As: <strong>on</strong> the interface<br />
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<br />
life. Jan Do<strong>on</strong>gaji, Senior Vice President Business Unit<br />
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 />
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, ensuring l<strong>on</strong>g tool life.<br />
CERATIZIT Luxembourg. The solid head soluti<strong>on</strong> of the<br />
HILTI drill is still unique today. There are no single carbide<br />
pins and tips which are inserted into the steel body, but<br />
<strong>on</strong>ly <strong>on</strong>e head which is brazed or welded <strong>on</strong>to the steel<br />
body.<br />
Georg Schmid, Business Unit Manager of the tool produc-<br />
ti<strong>on</strong> at HILTI explains: “As the drill head c<strong>on</strong>sists entirely<br />
of <strong>on</strong>e carbide <strong>on</strong>ly, there is more freedom in terms of<br />
cutting edge geometry which subsequently results in<br />
better drilling performance.”<br />
Unique solid head soluti<strong>on</strong> wins EPMA Award<br />
The joining process is regarded as the most delicate<br />
step in drill producti<strong>on</strong>. Schmid: “Carbide and steel are<br />
rather unequal partners when it comes to properties<br />
like brittleness and thermal expansi<strong>on</strong>. The critical area<br />
with 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<br />
Solid head drill with gradient z<strong>on</strong>es in C3X geometry, 4-16 mm – the best<br />
powder-metallurgical development at the EPMA c<strong>on</strong>ference.<br />
Carbide with a gradient structure: 1 Wear resistant <strong>on</strong> the<br />
drill tip, 2 Stable welded c<strong>on</strong>necti<strong>on</strong> with the steel shank
is extremely <strong>hard</strong> <strong>on</strong> the tip but rather tough <strong>on</strong> the<br />
steel side. The gradient in the carbide combines two<br />
characteristics: good wear resistance <strong>on</strong> the tip and a<br />
stable welded c<strong>on</strong>necti<strong>on</strong> with the steel shank. The solid<br />
head drill with gradient z<strong>on</strong>es which was developed by<br />
HILTI and CERATIZIT together with the geometry C3X was<br />
even awarded a prize at the EPMA c<strong>on</strong>ference 2006 in<br />
Gent (EPMA = 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 new<br />
cutting <strong>material</strong>s“, says Dr. Till Cramer, Head of the C<strong>on</strong>sum-<br />
ables Development BU Drilling and Demoliti<strong>on</strong> at HILTI:<br />
“HILTI strives for c<strong>on</strong>sistent differentiati<strong>on</strong> in the market.<br />
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<br />
of drills together, which enables us to move <strong>on</strong> to the<br />
next level of competency together.”<br />
HILTI, DRILL MANUFACTURER<br />
focuses <strong>on</strong> high quality. Dr. Cramer says: “In additi<strong>on</strong><br />
to drills HILTI also develops heavy duty hammers and<br />
combi-hammers. In this way the two comp<strong>on</strong>ents, tool<br />
and carbide bit, can be perfectly adapted to each<br />
other. Those who drill several hundred holes a day realize<br />
the difference.”<br />
Drill producti<strong>on</strong> in Kaufering<br />
The drills are actually not produced in Liechtenstein but<br />
in Kaufering in Bavaria. HILTI’s drills range from diameter<br />
5 mm (length 120 mm) up to diameter 40 mm (length<br />
920 mm).<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 syn<strong>on</strong>ymous<br />
with heavy duty drills and other tooling systems am<strong>on</strong>gst<br />
professi<strong>on</strong>als; the company employs 20,000 people<br />
and stands for innovative soluti<strong>on</strong>s for professi<strong>on</strong>als at<br />
c<strong>on</strong>structi<strong>on</strong> sites. And the results are stunning. In 2007<br />
the HILTI group showed a double-digit growth for the<br />
fourth time in a row, launching more than 30 new<br />
products <strong>on</strong> the market every year.<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<br />
performance 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<br />
these capabilities are tested at HILTI in an exceedingly<br />
demanding laboratory for new developments that HILTI drills with CERATIZIT carbide bits are supplied throughout the world.<br />
25
26<br />
MaxiMill HEC<br />
CERATIZIT‘s MaxiMill HEC offers<br />
clear performance advantages:<br />
High Efficiency Cutting<br />
The new MaxiMill HEC cutters from CERATIZIT will reduce tooling costs when machining Cast Ir<strong>on</strong> comp<strong>on</strong>ents and maximise productivity.<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. These<br />
tangentially-mounted inserts are mounted in such a way<br />
as to ensure maximum cutting performance and cutter<br />
stability, while at the same time reducing the power<br />
required to operate them at their optimum, making<br />
them 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<br />
can be used in virtually any C.I. face milling applicati<strong>on</strong><br />
it 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 generate<br />
the maximum productivity and cost savings for the enduser.<br />
Typical applicati<strong>on</strong> areas for MaxiMill HEC would<br />
be cast ir<strong>on</strong> comp<strong>on</strong>ents such as c<strong>on</strong>tact faces of<br />
crank cases, cylinder heads, turbochargers and pump<br />
cases, etc.<br />
imp:act 01/08<br />
“MaxiMill HEC is the result of an <strong>on</strong>going and extensive<br />
development programme at CERATIZIT”, says C<strong>on</strong>an<br />
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 maximise 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 impressive.<br />
For example, machining GG25 <strong>material</strong> at a <strong>hard</strong>ness<br />
of HB 180-220 is achieved at 200m/min, 0.25 mm/tooth<br />
feed rate with up to 5 mm depth of cut and 79 mm<br />
width of cut. Similarly, GGG 70 <strong>material</strong> at a <strong>hard</strong>ness<br />
of HB 240-300 can be cut at 180 m/min at a feed<br />
of 0.2 mm/tooth.
Change in leadership at<br />
CERATIZIT Germany<br />
CHANGE IN LEADERSHIP AT CERATIZIT GERMANY<br />
Jan van der Veen leaving – Andreas Olthoff taking over<br />
“Now it is important to find <strong>on</strong>e’s own way to follow<br />
in the footsteps of a great predecessor.” This is how<br />
Andreas Olthoff, new managing director of the CERATIZIT<br />
Deutschland GmbH, sees his task. At the beginning of<br />
August he followed Jan van der Veen who retired after<br />
fifteen years at CERATIZIT.<br />
“I believe that a company cannot be successful without<br />
team spirit“, says Andreas Olthoff, new head of CERATIZIT<br />
Deutschland GmbH. He sees his style of management as<br />
‘result-oriented’ while allowing employees a good deal<br />
of individual resp<strong>on</strong>sibility.<br />
A rapid career<br />
The new managing director (age 41) has already<br />
gathered experience at the German branch of an<br />
American company. He began his career in the field of<br />
sales there after studying mechanical and ec<strong>on</strong>omic<br />
engineering. He became key-account manager for<br />
northern Europe, subsequently sales manager and was<br />
then appointed managing director.<br />
“After fifteen years I was looking for a new professi<strong>on</strong>al<br />
challenge,“ he states. At CERATIZIT Germany he<br />
accepted this challenge. The sales volume of the<br />
CERATIZIT group in Germany is 100 milli<strong>on</strong> Euros; the<br />
sales company employs 65 people. The new managing<br />
director says: “I’m happy to have found a growing<br />
company with an excellent internati<strong>on</strong>al positi<strong>on</strong>. It is<br />
a gratifying and challenging task to c<strong>on</strong>tribute to the<br />
further success of CERATIZIT.”<br />
Commitment to the Corporate Values<br />
Andreas Olthoff c<strong>on</strong>siders Corporate Values an overall<br />
c<strong>on</strong>cept with important functi<strong>on</strong>s. He thinks that the<br />
value of communicati<strong>on</strong> and an interacti<strong>on</strong> based <strong>on</strong><br />
trust between superior and team are essential for a<br />
c<strong>on</strong>tinuously growing company. “No company can be<br />
successful without the active implementati<strong>on</strong> and experiencing<br />
of values,” he says. “I would like make a c<strong>on</strong>tributi<strong>on</strong><br />
to this company culture.”<br />
His predecessor Jan van der Veen supports this belief: “I<br />
have often regretted that we talk a lot about our corporate<br />
values but do not always live according to them.<br />
Communicati<strong>on</strong> <strong>matters</strong>, trust and respect matter!“<br />
So the change of generati<strong>on</strong>s at the vanguard of the<br />
CERATIZIT Deutschland GmbH is all settled.<br />
Takes over the leadership of the brand: the new managing director<br />
of CERATIZIT Deutschland Gmbh, Andreas Olthoff (left) with his<br />
predecessor Jan van der Veen.<br />
Short descripti<strong>on</strong> of Andreas Olthoff<br />
Age 41, married<br />
Hobbies: running (marath<strong>on</strong>), squash, motor-biking<br />
Studies: mechanical and ec<strong>on</strong>omic engineering<br />
Professi<strong>on</strong>al career:<br />
• 15 years in the German branch of an American<br />
company (listed <strong>on</strong> the stock market) selling<br />
hydraulic tools. His positi<strong>on</strong>s were<br />
• Junior sales representative<br />
• Key-account manager for northern Europe<br />
• Sales manager<br />
• Managing Director<br />
27
28<br />
MSS-SX<br />
imp:act 01/08
MSS-SX<br />
MSS-SX<br />
blade system<br />
for parting and<br />
grooving offers<br />
distinct<br />
advantages<br />
The latest parting and grooving innovati<strong>on</strong> from <strong>Ceratizit</strong><br />
provides users with a much simplified operating procedure<br />
that ensures precise insert locati<strong>on</strong> and expedites<br />
the setting process.<br />
MSS-SX features an innovative clamping system that<br />
allows inserts to be locked into positi<strong>on</strong>, using the<br />
supplied tool, from either side of the blade, making it<br />
suitable for a variety of machine tool c<strong>on</strong>figurati<strong>on</strong>s. This<br />
tool is located in the two locati<strong>on</strong> points and is used,<br />
initially, to open the insert seat prior to the insert being<br />
positi<strong>on</strong>ed. The reverse movement of the tool then causes<br />
the seat to clamp the insert precisely and securely.<br />
In creating the insert pocket for the MSS-SX system,<br />
<strong>Ceratizit</strong> employed finite element analysis to ensure the<br />
optimum insert seat and clamping system was created.<br />
The result is a guarantee of perfect insert seating every<br />
time, al<strong>on</strong>g with c<strong>on</strong>sistent positi<strong>on</strong>ing of the insert to<br />
eliminate time-c<strong>on</strong>suming adjustments after an insert<br />
is changed. Furthermore, the retaining system ensures<br />
good insert security under the most arduous of cutting<br />
c<strong>on</strong>diti<strong>on</strong>s. It can be applied for parting, grooving and<br />
l<strong>on</strong>gitudinal turning.<br />
Simple and accurate adjusting of the cut length<br />
The final outcome is a parting and grooving system that<br />
provides functi<strong>on</strong>ality and handling but with maximum<br />
stability under difficult cutting c<strong>on</strong>diti<strong>on</strong>s. This functi<strong>on</strong>ality is<br />
enhanced by the additi<strong>on</strong> of laser-etched scaling<br />
applied to the cutter blade, which makes adjusting of the<br />
cut length simple and accurate. “This visual and indelible<br />
mark provides an easy reference for the user,” says Vince<br />
Kelly, <strong>Ceratizit</strong>’s Managing Director. “While the use of<br />
the blade toolholder system significantly increases the<br />
applicati<strong>on</strong> range of the MSS-SX, without losing any<br />
efficiency, strength or precisi<strong>on</strong>.”<br />
29
30<br />
COATED CBN<br />
CERATIZIT successfully applies<br />
CBN with HyperCoat coating<br />
Tool life increased between 30 and 40 % compared to uncoated CBN<br />
With the HyperCoat grade CTL3215 CERATIZIT will for the<br />
fi rst time present a coated CBN (cubic bor<strong>on</strong> nitride)<br />
<strong>material</strong>. Thanks to CERATIZIT’s coating approach the<br />
applicati<strong>on</strong> range of CBN tools has been substantially<br />
extended. At last it is now possible to mill also<br />
<strong>hard</strong>ened steel and cast ir<strong>on</strong> in a notably better way.<br />
The coated CBN soluti<strong>on</strong> from CERATIZIT will mainly be<br />
applied for fi ne or medium milling operati<strong>on</strong>s with cutting<br />
speeds up to 1,000 metres per minute, depending <strong>on</strong> the<br />
applicati<strong>on</strong>. The tooling soluti<strong>on</strong> therefore requires stable<br />
machining c<strong>on</strong>diti<strong>on</strong>s and is applied without cooling<br />
lubricant. Tool life compared to uncoated CBN is<br />
increased between 30 and 40 %.<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). Furthermore CERATIZIT has<br />
been selling CBN inserts for many years, and to an<br />
increasing degree also tools for milling applicati<strong>on</strong>s.<br />
The stress the tools are subjected to during these milling<br />
operati<strong>on</strong>s is caused by interrupted cut, thermal shock<br />
and oxidati<strong>on</strong>, and represents <strong>on</strong>e of the threshold<br />
applicati<strong>on</strong>s of CBN. The carbide expert CERATIZIT has<br />
faced this problem by providing CBN with the functi<strong>on</strong>al<br />
HyperCoat coating and using it for milling applicati<strong>on</strong>s,<br />
which c<strong>on</strong>siderably enhances both process security<br />
and tool life. In additi<strong>on</strong> it has become clear that these<br />
improvements are also achieved in turning applicati<strong>on</strong>s<br />
under diffi cult c<strong>on</strong>diti<strong>on</strong>s, such as the machining of grey<br />
cast ir<strong>on</strong> and chilled castings.<br />
imp:act 01/08<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<br />
<strong>material</strong> applied in milling operati<strong>on</strong>s which are characterized<br />
by stress variati<strong>on</strong>, thermal shock and<br />
oxidati<strong>on</strong>. The recently developed coating is based <strong>on</strong><br />
an innovative compositi<strong>on</strong> which shows signifi cantly<br />
better resistance to oxidati<strong>on</strong> and simultaneously excellent<br />
wear resistance, especially when it comes to high<br />
applicati<strong>on</strong> temperatures. Compressive stress resulting<br />
from the PVD coating procedure provides the new<br />
HyperCoat coating with higher toughness and last but<br />
not least with more reliability for the tooling system.<br />
Cutting <strong>material</strong> with success story<br />
CBN has been known as a cutting <strong>material</strong> for almost<br />
40 years. In 1969 GE (General Electric) launched cubic<br />
bor<strong>on</strong> nitride for the fi rst time under the name `Boraz<strong>on</strong>´<br />
as a revoluti<strong>on</strong>ary development in the fi eld of extremely<br />
<strong>hard</strong> grinding <strong>material</strong>s. CBN does not occur naturally,<br />
but is produced synthetically (high-pressure synthesis)<br />
and, with a <strong>hard</strong>ness twice as high as silic<strong>on</strong> carbide<br />
(SiC) after diam<strong>on</strong>d ranks as the sec<strong>on</strong>d <strong>hard</strong>est<br />
<strong>material</strong>. It shows its strengths particularly when turning<br />
<strong>hard</strong> <strong>material</strong>s (<strong>hard</strong>ness > 58 HRC), such as<br />
<strong>hard</strong>ened steel or chilled castings: CBN is characterized by<br />
extreme <strong>hard</strong>ness and excellent heat resistance as well<br />
as suffi cient toughness for this applicati<strong>on</strong> area.
MaxiMill HFC<br />
CERATIZIT develops new high-feed<br />
face milling cutter<br />
MaxiMill HFC is syn<strong>on</strong>ymous with rapid milling<br />
CERATIZIT has developed a new tooling system for<br />
special face milling operati<strong>on</strong>s. The MaxiMill HFC (High<br />
Feed Cutting) system is syn<strong>on</strong>ymous with maximum feed<br />
and chip removal rates.<br />
High-feed cutting tools are applied where maximum<br />
chip removal rates must be achieved in a minimum of<br />
time. A typical applicati<strong>on</strong> is rough milling of flat faces,<br />
for 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<br />
HyperCoat coatings. CTP1235 (for steel), CTP2235 (for<br />
stainless steel) and CTC3215 (for cast ir<strong>on</strong>). The combinati<strong>on</strong><br />
of the new HFC milling system and the latest CERATIZIT<br />
grades guarantee maximum performance in terms<br />
of tool life, surface quality and reduced tendency for<br />
vibrati<strong>on</strong>.<br />
The optimised 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 3.0 mm<br />
per tooth), plunging for the producti<strong>on</strong> of deep pockets<br />
and with maximum chip removal rates (more than<br />
1,500 ccm/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 />
31
32<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<br />
cases from CERATIZIT<br />
What do the punctual departure of a train, a tenancy<br />
agreement, a game of chess and New Year’s Eve have<br />
in comm<strong>on</strong>? They are all subject to time. A c<strong>on</strong>tributi<strong>on</strong><br />
<strong>on</strong> the `time <strong>on</strong> the wrist´, the innovative watch manu-<br />
facturer Rado and CERATIZIT’s role in the producti<strong>on</strong> of<br />
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<br />
to be polished frequently. Then, tungsten and titanium<br />
carbides were <strong>on</strong>ly known as extremely resistant<br />
<strong>material</strong>s in the field of high-tech producti<strong>on</strong> of special<br />
tools. “Making a watch out of this <strong>material</strong> - that would<br />
be the soluti<strong>on</strong>,“ said Lederrey. And Dr. Paul Lüthi, who<br />
was at that time the boss of Rado, gave the go-ahead<br />
for this development. The result: the first scratchproof<br />
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 manufacturers<br />
in Switzerland. The Rado group has been<br />
part of the Swatch group since 1983 and already has<br />
more than 300 service centres 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, Rado<br />
counts <strong>on</strong> high-tech <strong>material</strong>s of the future. Lanthanum,<br />
ceramic, sapphire crystal, high-tech diam<strong>on</strong>d and last<br />
but not least carbide. The level of scratch resistance<br />
of a <strong>material</strong> depends <strong>on</strong> its <strong>hard</strong>ness. Hard <strong>material</strong>s<br />
make scratches in softer <strong>material</strong>s: diam<strong>on</strong>d makes<br />
Carbide case from CERATIZIT for the Swiss watch manufacturer Rado:<br />
injecti<strong>on</strong> moulded parts before sintering.<br />
imp:act 01/08<br />
scratches in sapphire, sapphire in glass, and glass in metal.<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. Rado has never <strong>on</strong>ly<br />
focused <strong>on</strong> beautiful watches. The main decisi<strong>on</strong> has<br />
always been the selecti<strong>on</strong> of the <strong>material</strong>. In this way<br />
design and <strong>material</strong> combinati<strong>on</strong>s are developed which<br />
perfectly combine the two functi<strong>on</strong>s of a watch: a<br />
modern piece of jewellery and a functi<strong>on</strong>al time<br />
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 the<br />
cases started at the beginning of the 1960‘s at the Reutte<br />
site. Now they are produced in Mamer, Luxembourg<br />
and are then subjected to several machining processes<br />
at Rado’s subc<strong>on</strong>tractors until they become high-quality<br />
watches. Marc Lanners, producti<strong>on</strong> manager of the<br />
watch case line in Mamer: “The most tricky thing when<br />
producing watch cases is aesthetic quality. The preparati<strong>on</strong><br />
of the feedstock (a mixture of powder and binder)<br />
is of maximum importance in order to be able to fulfil the<br />
quality 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 cases<br />
per year, today we have five models,” says Hans Müller,<br />
business segment manager of special industrial wear<br />
parts. “Even for these high-quality products the life cycle<br />
is c<strong>on</strong>tinuously decreasing. We must therefore react<br />
ever faster. The latest case model was developed within<br />
<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 mit Peter Oppliger, Purchasing Manager Rado<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> moulding. 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> moulding 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 carbide<br />
which is light and <strong>hard</strong>ly releases any nickel. So it<br />
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 manu-<br />
facture which was introduced in the watch industry<br />
by Rado, is a carbide competitor. Its lightness and<br />
hypoallergenic properties make this ceramic a <strong>material</strong><br />
which can be easily worn <strong>on</strong> the wrist without complicati<strong>on</strong>s.”<br />
What would CERATIZIT have to optimise 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 />
33
34<br />
ZRINSKI, CROATIA<br />
Aluminium comp<strong>on</strong>ent.<br />
A ZRINSKI employee checking the quality of an<br />
aluminium 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<br />
are 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<br />
field of design and producti<strong>on</strong> of high-quality special<br />
products: medical systems, aerospace comp<strong>on</strong>ents,<br />
mechanical engineering, precisi<strong>on</strong> engineering and<br />
antenna installati<strong>on</strong>. Using aluminium, titanium and other<br />
<strong>material</strong>s ZRINSKI Tehnologija produces spine implants,<br />
b<strong>on</strong>e plates, kinematic modules for aircraft seats, watch<br />
cases and surfaces of parabolic reflector antennas.<br />
Producti<strong>on</strong> manager Cepanec states: “Per year we<br />
produce up to 2000 seats for Lufthansa’s Business Class,<br />
a typical example of our service: highly precise parts<br />
delivered just in time.“ Further premium customers and<br />
projects are Siemens (assemblies and A-parts) and IWC<br />
(watch cases) as well as the core piece for the ‘ear of the<br />
world’, the surfaces of the radio telescopes in the Atacama<br />
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>. Produc-<br />
ti<strong>on</strong> manager Cepanec: “80 per cent of the carbide<br />
tools applied at ZRINSKI Tehnologija are from CERATIZIT.<br />
The demand for tools is very high ranging from drills to<br />
high-speed tools.”<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 tools for<br />
aluminium machining. Domislović: “We are really delighted<br />
with the cutting tools for titanium machining. When<br />
machining a titanium work piece (3.7164, Ø21 x 165mm)<br />
with a CERATIZIT soluti<strong>on</strong> we machine 130 parts per<br />
cutting edge, which means twice as much as with the
Cutting tools for medical systems: ZRINSKI produces titanium implants<br />
with tools from CERATIZIT.<br />
competiti<strong>on</strong>’s product and a higher spindle revoluti<strong>on</strong><br />
number (1400 rev/min as opposed to 1000).“ “The<br />
machines at ZRINSKI Tehnologija operate at full speed, and<br />
it is not easy to find the time for tests“, adds Aleksander<br />
Nišević, CERATIZIT sales manager for Croatia. “With such<br />
results however the tests pay off very quickly.”<br />
From tool mechanic to entrepreneur<br />
Josef Zrinski, born in Croatia, moved to Germany at the<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 />
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<br />
135 employees in Germany and 30 in Croatia. They all<br />
have <strong>on</strong>e goal <strong>on</strong>ly: to be the best in the niche they are<br />
working in.<br />
35
36<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<br />
modern aerospace industry for both civil and military<br />
aviati<strong>on</strong>. The industry sector resp<strong>on</strong>ds to this requisite<br />
with new <strong>material</strong>s such as carb<strong>on</strong> fibre. In this c<strong>on</strong>text<br />
titanium is also gaining ever more importance in aircraft<br />
c<strong>on</strong>structi<strong>on</strong>. In fact structural comp<strong>on</strong>ents which hold<br />
the carb<strong>on</strong> fibre comp<strong>on</strong>ents together are made of<br />
titanium, which is why they can be c<strong>on</strong>sidered the<br />
framework of modern aircraft c<strong>on</strong>structi<strong>on</strong>. Due to this<br />
tendency, structural comp<strong>on</strong>ents made of aluminium are<br />
reducing in importance. C<strong>on</strong>sequently a c<strong>on</strong>siderably<br />
higher number of comp<strong>on</strong>ent subc<strong>on</strong>tractors will have<br />
to deal with this difficult to 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<br />
with 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 re<br />
sistance 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<br />
than that of aluminium. Simultaneously they show twice<br />
as high a strength so that structural comp<strong>on</strong>ents can<br />
be designed slimmer and with lower weight. A disad-<br />
vantage is their bad machinability which has a negative<br />
impact <strong>on</strong> manufacturing costs due to low cutting speeds<br />
and short tool life. The most important reas<strong>on</strong> for this bad<br />
machinability is the extremely low thermal c<strong>on</strong>ductivity<br />
of titanium alloys. Titanium c<strong>on</strong>ducts heat about ten<br />
times worse than steel. C<strong>on</strong>trary to the machining of<br />
steel the heat produced during the cutting process is<br />
therefore not evacuated with the swarf, but the major<br />
part of the heat is c<strong>on</strong>centrated inside the tool or the<br />
cutting edge.
Oliver Baum, Product Manager Aerospace.<br />
TITANIUM MACHINING<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 15-20% higher than comparable products<br />
from 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. In order to minimise the heat<br />
generati<strong>on</strong>, it is essential that the coating has the<br />
smoothest possible surface and the swarf can glide<br />
over the rake face without substantial resistance. The<br />
recently developed TiB2 coating by CVD from CERATIZIT<br />
totally fulfils these specificati<strong>on</strong>s.<br />
The inserts for titanium machining are customarily<br />
provided with protective chamfers in order to stabilise<br />
them at high temperatures, but this results in the<br />
disadvantage of increased cutting pressure. Now<br />
CERATIZIT offers the decisive competitive edge. Only<br />
the extremely heat resistant substrate of the new<br />
CERATIZIT grade CTC5240 enables the applicati<strong>on</strong> of<br />
inserts with very positive geometries, without protective<br />
chamfer and with a light edge h<strong>on</strong>e to be used for the<br />
machining of titanium. In this way cutting pressure is<br />
reduced which also limits heat generati<strong>on</strong>, and chip<br />
formati<strong>on</strong> is greatly improved through these extremely<br />
positive geometries. Additi<strong>on</strong>ally compressed and<br />
lamellar chips are avoided, i.e. the cutting pressure and<br />
subsequently wear is reduced. All in all these effects<br />
result in a 20% increase in tool life compared to other<br />
suppliers.<br />
Compressed chips due to insufficient chip formati<strong>on</strong><br />
vs. spiral swarf.<br />
37
38<br />
VM MOTORI, ITALY<br />
Success story: two companies<br />
in the same league<br />
VM Motori produces Diesel engines applying know-how<br />
and tools from CERATIZIT<br />
Emilia Romagna - the country of Italian car freaks<br />
VM Motori, founded by the entrepreneurs Vancini and<br />
Martelli in the year 1947, specializes in the manufacture of<br />
Diesel engines. At the beginning the engines were exclu-<br />
sively applied in agricultural machines and ship<br />
building as well as in general industry. Later, however,<br />
they were also used in automobiles thanks to an innovative<br />
generati<strong>on</strong> of engines provided with a super-<br />
charger system as a standard feature. In 1990 VM<br />
launched the Turbotr<strong>on</strong>ic engine which through its<br />
electr<strong>on</strong>ic c<strong>on</strong>trol of the combusti <strong>on</strong> process<br />
and the recycling of the exhaust gases guarantees<br />
high performance combined with minimum<br />
pollutant rates. Turbotr<strong>on</strong>ic was a revoluti<strong>on</strong>ary engine,<br />
the cleanest of its class, that was mounted for more than<br />
ten years in cars produced by General Motors, Ford and<br />
Rover.<br />
VM Motori is located in Cento, a town in the Italian regi<strong>on</strong><br />
Emilia Romagna. Enzo Casanova, Head of Manufac-<br />
turing Engineering: “We live here in engine country. Our<br />
area is known around the globe for its know-how in the<br />
field of engine c<strong>on</strong>structi<strong>on</strong>. Not for nothing are the firms<br />
Ducati, Ferrari, Lamborghini and Maserati based here.<br />
The people here love cars.”<br />
Main topic: efficiency<br />
Casanova: “VM Motori operates in a niche market<br />
which is appropriate for our producti<strong>on</strong> capacity,<br />
and allows our company to extend our know-how,<br />
simultaneously improving our positi<strong>on</strong> as a professi<strong>on</strong>al<br />
supplier and optimizing our competitiveness in the smaller<br />
Diesel car segment. All suppliers - even those who were<br />
against the use of Diesel fuel – had to deal with these<br />
business segments as they were aware that it would be<br />
difficult, unec<strong>on</strong>omic and slow to build and produce a<br />
Diesel engine themselves. VM’s market positi<strong>on</strong> in fact<br />
results from the capability to produce small quantities of<br />
reliable and durable engines at competitive prices. In<br />
additi<strong>on</strong>, every engine must c<strong>on</strong>form to the latest envir<strong>on</strong>-<br />
mental standards for the relevant market.<br />
We c<strong>on</strong>sider ourselves the ‘tailors’ of the automotive<br />
industry in order to underline VM‘s capacity to meet the<br />
customers’ demands offering engineering, research &<br />
development, producti<strong>on</strong> and tests.”<br />
imp:act 01/08
In <strong>on</strong>e word: flexibility<br />
“The automotive industry demands ‘just-in-time’ produc-<br />
ti<strong>on</strong> from us,“ explains Casanova. “Neither we nor<br />
our customers have a warehouse for engines. These<br />
specificati<strong>on</strong>s force us to remain flexible.” Such flexibility<br />
requires maximum efficiency: at VM Motori every step<br />
has to be spot <strong>on</strong>.<br />
Efficiency in producti<strong>on</strong> and in the product itself.<br />
Diesel engines have always been very efficient: at low<br />
revoluti<strong>on</strong> speeds they deliver higher torque than petrol<br />
engines. A Diesel engine has a quicker resp<strong>on</strong>se, and<br />
thus a more direct accelerati<strong>on</strong>. In additi<strong>on</strong> there is the<br />
VM MOTORI, ITALY<br />
enormous advantage of very low fuel c<strong>on</strong>sumpti<strong>on</strong>. The<br />
search for ways to further increase efficiency however<br />
also c<strong>on</strong>tinues in the field of Diesel engines. Diesel<br />
engines are the heaviest engines available in the market.<br />
Casanova states: “We are striving to reduce the weight<br />
of our new V6 engine by applying compacted graphite<br />
ir<strong>on</strong> (CGI). Thanks to the mechanical properties of this<br />
<strong>material</strong> we are able to produce parts with thinner walls<br />
than would be needed for c<strong>on</strong>venti<strong>on</strong>al grey cast ir<strong>on</strong>.<br />
Furthermore we produce camshafts from thick-walled<br />
tubes. The cams are mounted <strong>on</strong> the tubes. In this way<br />
we are not <strong>on</strong>ly able to obtain a reducti<strong>on</strong> in terms of<br />
weight but also of machining time.”
40<br />
VM MOTORI, ITALY<br />
Original and surprising developments are much<br />
appreciated<br />
VM Motori and CERATIZIT have been business partners<br />
for a l<strong>on</strong>g time and have clocked up numerous<br />
successes. “The HEC-11 system from CERATIZIT, for<br />
instance, has been a great success“, says Claudio<br />
Grisetti, producti<strong>on</strong> engineer at VM Motori. “We are<br />
talking about a soluti<strong>on</strong> here which brought in a lot of<br />
cash. After the first successful tests we integrated the<br />
system into the ‘crankshaft’ producti<strong>on</strong> line.” Casanova:<br />
“The milling cutters have shown advantages such as<br />
reduced cutting forces which have increased tool life.<br />
The geometry of the inserts has enabled a cost reducti<strong>on</strong><br />
of 20% compared to the previous soluti<strong>on</strong> - we like being<br />
c<strong>on</strong>vinced in this way!”<br />
“The HEC11 system applied at VM Motori combines a<br />
close pitch with eight usable cutting edges and high<br />
process security through stable tangential inserts. The<br />
system operates with minimum cutting forces, thus<br />
reducing both deformati<strong>on</strong> of the comp<strong>on</strong>ents and<br />
vibrati<strong>on</strong>“, says Jürgen Duwe, research & development<br />
department, CERATIZIT Austria.<br />
Giovanni Pante, Key Account Manager Cutting Tools,<br />
CERATIZIT Italia explains: “The essential thing when<br />
attending to the needs of key account customers is<br />
being able to listen and to fulfil their demands. The<br />
customer tells us what he needs, while we help him to<br />
come to an appropriate soluti<strong>on</strong>. Developing products<br />
aut<strong>on</strong>omously hoping that they will sell in the market is<br />
just not an opti<strong>on</strong>.”<br />
Casanova also c<strong>on</strong>firms that it is not sufficient to offer<br />
standard soluti<strong>on</strong>s. “We receive input from our business<br />
partners that induces us to find soluti<strong>on</strong>s and procedures<br />
which would not have occurred to us without them. We<br />
want our business partners not <strong>on</strong>ly to fulfil our wishes but<br />
to simply surprise us. This is how a business relati<strong>on</strong>ship<br />
based <strong>on</strong> trust is created.”<br />
VM Motori Diesel engines before the quality test.<br />
imp:act 01/08<br />
Claudia Grisetti (VM Motori), Pasquale Cristallo e Jürgen Duwe (both<br />
from CERATIZIT) talking about new developments.<br />
The weight of an engine for an automobile is between 240 and 280 kg.
Interview with Enzo Casanova<br />
Head of Manufacturing Engineering at VM Motori<br />
CERATIZIT: What are the trends in the engine industry?<br />
Casanova: “There are very clear trends towards increased<br />
efficiency and improved performance. An engine<br />
with 150 hp can almost be c<strong>on</strong>sidered a standard<br />
engine and does by no means represent an excepti<strong>on</strong>.<br />
Another tendency is towards engines with smaller<br />
capacity (e.g. 1.5 litres) but high performance.<br />
There is a str<strong>on</strong>g tendency towards the c<strong>on</strong>structi<strong>on</strong> of<br />
engines with low fuel c<strong>on</strong>sumpti<strong>on</strong> which meet the ever<br />
stricter laws <strong>on</strong> exhaust gases. It is a tough job to take all<br />
these factors into account. The electr<strong>on</strong>ics of the engine<br />
are therefore gaining importance as the potential in this<br />
sector is still enormous.”<br />
CERATIZIT: Why did you choose CERATIZIT?<br />
Casanova: “After having looked at some prototypes<br />
we decided to start a test phase with CERATIZIT<br />
products which were not available in batch producti<strong>on</strong><br />
at the time. We firmly believed in the technological and<br />
human potential of CERATIZIT. Now, some m<strong>on</strong>ths after<br />
the tests, we can say that the performance has more<br />
than c<strong>on</strong>firmed our choice.”<br />
CERATIZIT: What are the misc<strong>on</strong>cepti<strong>on</strong>s in the engine<br />
sector?<br />
Casanova: “There are two subjects which come to mind.<br />
First of all, it is often said that Diesel engines are rather<br />
loud and do not run smoothly. This is not really true. In<br />
fact the noise level of an engine depends <strong>on</strong> the way<br />
it is mounted in the car, i.e. how much vibrati<strong>on</strong> is transferred<br />
to the body and how well it has been insulated.<br />
Another misc<strong>on</strong>cepti<strong>on</strong> is that Diesel engines are big<br />
pollutants. Here it must be said that the Diesel engine<br />
has underg<strong>on</strong>e a change: it now has lots of power and,<br />
thanks to innovative technologies, at the same time it is<br />
relatively clean (e.g. Diesel particulate filters).”<br />
CERATIZIT: What are the test procedures for engines at<br />
VM Motori?<br />
Casanova: “All engines run for a few minutes in the<br />
lab in order to check their performance and a certain<br />
percentage of them is subjected to a stricter reliability<br />
test. In the near future a ‘cold test’ will also be introduced<br />
where the engine runs without c<strong>on</strong>suming fuel, thus<br />
making the tests more envir<strong>on</strong>mental-friendly.”<br />
CERATIZIT: Can you give us some basic data <strong>on</strong> the<br />
Diesel engine and its manufacture?<br />
Casanova: “The weight of an automobile engine can<br />
VM MOTORI, ITALY<br />
Enzo Casanova, Head of Manufacturing Engineering at VM Motori.<br />
be between 240 and 280 kilos. The engine itself c<strong>on</strong>sists<br />
of 460 comp<strong>on</strong>ents including small parts such as screws,<br />
clamping pins etc. The assembly of an engine takes<br />
between two and three hours. The guaranteed performance<br />
depends <strong>on</strong> the type of engine and <strong>on</strong> average<br />
this lasts for about 200,000 kilometres.”<br />
CERATIZIT: How strict are the specificati<strong>on</strong>s of the<br />
automotive manufacturers?<br />
Casanova: “The automotive industry requires that<br />
numerous quality assurance measures are carried out<br />
as well as procedures assuring repeatability in batch<br />
producti<strong>on</strong>. Some of these are quality systems like<br />
QS9000 or ISO TS16949. In additi<strong>on</strong> there are customer-<br />
specific requirements to ensure that determined<br />
specificati<strong>on</strong>s are met.”<br />
CERATIZIT: And what does this mean for a company like<br />
VM Motori?<br />
Casanova: “Our customers do not <strong>on</strong>ly demand that<br />
we build and deliver high-performance engines,<br />
but also set up a fully-fledged quality assurance<br />
programme. Qualified employees have to be able to<br />
provide the customer with detailed reports which in case of<br />
problems give an immediate remedy and have to<br />
prove at any time the quality of the batch producti<strong>on</strong><br />
process. It has to be guaranteed to the customer that<br />
everything possible is being d<strong>on</strong>e to not <strong>on</strong>ly guarantee<br />
the product’s quality by analyzing its possible defects<br />
but also through preventive maintenance of all producti<strong>on</strong><br />
plants. Already some eight or nine m<strong>on</strong>ths before<br />
producti<strong>on</strong> starts the customer requires in additi<strong>on</strong> that<br />
the producti<strong>on</strong> capacity is proved with plants operating<br />
at full load, which of course has effects <strong>on</strong> investments.”<br />
41
42<br />
HPC 12<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 milling<br />
c<strong>on</strong>cept for the automotive industry, namely the<br />
aluminium 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<br />
automotive customer’s in July 2003. CERATIZIT made an<br />
offer to the producti<strong>on</strong> manager to deliver new tools<br />
which would meet the increased requirements within<br />
<strong>on</strong>ly six m<strong>on</strong>ths. An extremely ambitious deadline<br />
chosen by CERATIZIT itself. The CERATIZIT project team<br />
had an additi<strong>on</strong>al goal: a new flexible tooling c<strong>on</strong>cept<br />
should be developed which would be suitable for the<br />
majority of applicati<strong>on</strong>s in aluminium milling for the<br />
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,<br />
the rake angles and the cutting <strong>material</strong>s (CBN, PCD)<br />
could 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 aluminium 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 = 0.1 mm<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 highly<br />
c<strong>on</strong>sistent and predictable. Furthermore, in most of the<br />
cases productivity has also to be improved. In a test<br />
with an AHPC 100R12.12 milling cutter MaxiMill HPC 12<br />
showed its abilities and its saving potential at a CERATIZIT<br />
customer‘s who produces gear box cases made of<br />
aluminium 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<br />
to 19.2 sec<strong>on</strong>ds thanks to MaxiMill HPC 12). A surface<br />
quality of Rmax < 6µ – was requested, and CERATIZIT<br />
even obtained 4.42µ. The test is also very significant for its<br />
extreme cutting data:
The aluminium 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 = 4,712 m /min<br />
• n = 15,000 rev./min<br />
• f = 25,200 mm/min<br />
• fz = 0.14mm<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<br />
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<br />
the automotive segment at CERATIZIT Reutte, Austria.<br />
Jürgen Duwe from the development department in the<br />
HPC 12<br />
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<br />
opener’ for companies of the automotive industry,”<br />
says Tinus Zuetenhorst, sales manager of CERATIZIT<br />
Nederland. “Ever since we presented this tool we have<br />
had a much str<strong>on</strong>ger presence and actively invited<br />
to carry out tests. We have already been successful<br />
at three companies with the tool – this looks very<br />
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<br />
tool life and the good surface quality produced by this<br />
milling cutter have c<strong>on</strong>vinced our customers.”<br />
43
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0238 EN 01.08<br />
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