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Le spécialiste des moules et outillages.

Hitachi Tool propose la plus grande palette d'outils pour l'usinage à grande vitesse des moules et outillages.

HD-Coating solves a fundamental problem

Wafer-thin tolerance and long-lasting tool life in high-speed cutting of graphite electrodes

HD Coating, Logo and Example MillsWith its D-EPDx diamond-coated end mills, Hitachi has solved a fundamental problem. More and more specialist toolmakers are switching from heavyweight copper to significantly lighter graphite in manufacturing sinker electrodes because graphite enables them to produce bigger and more complex electrodes. However, graphite’s abrasive qualities have left them far from satisfied with the tool life and workpiece surfaces.

The new D-EPDx solid carbide end mills open up a new chapter in high-speed cutting operations – for two reasons. First, the thick layer of diamonds is mounted on a specially developed substrate that is ground to an undersize. This guarantees extremely close tool tolerances. Second, the HD coating ensures that abrasion is much delayed and then only occurs slowly, which virtually removes any risk of suddenly exceeding tolerance limits.

Hitachi supplies the high-speed tools as two-edged ball mills with a diameter of 1-10 mm and as two-edged torus mills with a diameter of 1-4 mm. For diameters of 6-10 mm the torus mills are supplied in a four-edged version. D-EPDx tools are extremely robust and their recessed design allows them to be used for machining depths of up to 30 times their nominal diameter.

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Contact

M. Jérôme Orozco
Hitachi Tool Engineering Europe
Parc tertiaire de Bois Dieu
3 Allée des Chevreuils
69380 Lissieu

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