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A new concept for the economic wire-edm machining of high quality carbide tools

Objective

There is a need for more precise and fast production of carbide tools (punches) to be used for the mass production of geometrically complex and narrow toleranced sheet metal products (e.g. lead frames, motor laminates). Compare to grinding, the Wire-EDM machining process allows to make geometrically complex shapes, but the surface quality (thermal cracking,..) and precision is less good. The EDM2005 project aims the development of a new Wire-EDM machining concept, based on the use of alternative dieletrics, new high strength wires (e.g. coated steel wire) and more advanced generators. In combination with corrosion resistant carbide materials, this new machining technology will allow to produce punches with small radii and tight tolerances within a competitive time, leading to increased tool life (of the punches). In addition, a new test procedure will be developed for a fast and proper estimation of the tool life of a machined punch.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

KATHOLIEKE UNIVERSITEIT LEUVEN
Address
300 B,celestijnenlaan 300 B
3001 Heverlee
Belgium

Participants (6)

BEKAERT SA/NV
Belgium
Address
Bekaertstraat 2
8550 Zwevegem
CERATIZIT AUSTRIA AG
Austria
Address

6600 Reutte
CHARMILLES TECHNOLOGIES S.A.
Switzerland
Address
Route Du Pré-de-la-fontaine
1217 Geneve
CORRADA SPA
Italy
Address
Via Buonarroti 8
20020 Lainate - Milano
OEL-HELD GMBH MINERALOELWERK
Germany
Address
Ulmer Strasse 135
70069 Stuttgart
SMS RESEARCH & DEVELOPMENT BV
Netherlands
Address
Hermesstraat 8
5047TS Tilburg