EoW March 2010

technology news

Chipless forming technology Precision rolls for the chipless forming technique are more than just standard items. Reliability and service life depend on material, geometry and the accuracy of production. Therefore it is essential for the design of the rolls to find the ideal material constellation and geometry for every application.

Kämpfer Würz has considered the increased requirements of users of rolling tools and extended the manufacturing possibilities of roll machining by a considerable step. A few years ago, users of rolling tools for precision roll technique had to use carbide rolls with a maximum diameter of 200mm. By investing in new grinding technology Kämpfer Würz is now able to machine cold rolls with carbide tipping up to 600mm diameter, and a maximum length of 2,500mm accurate to <2µmm. For manufacturers of carbide rolls for large dimensions further adaptations are important to achieve an optimal composite between roll base body and carbide ring, by the precise internal grinding of these large carbides. Here

Chipless forming technology from Kämpfer Würz Umformtechnik GmbH ▲ ▲

Kämpfer Würz can produce roll barrels with convex or concave contours. Kämpfer Würz Umformtechnik GmbH – Germany Fax : +49 2775 9545 95

accuracies of shape with a cylindrical form of <3µmm are essential. Modern CNC machines permit the machining of complex forms and geometries that allow large dimensioned profiles to be machined with the highest precision into large and heavy rolls.

Email : kwrf@kaempfer.de Website : www.kaempfer.de

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EuroWire – March 2010