B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
76/20, 77/28
B23B 51/00 (2006.01) B23C 5/00 (2006.01) B23C 5/10 (2006.01) B23D 77/02 (2006.01) B23P 15/32 (2006.01)
Patent
CA 2000417
TITLE OF THE INVENTION A polycrystal diamond fluted tool and a process for the production of the same ABSTRACT OF THE DISCLOSURE A polycrystal diamond fluted tool which is capable of effecting working with much higher accuracy and longer life as compared with the sintered diamond straight flute tool of the prior art, and is particularly suitable for finishing working with high accuracy is provided by forming a polycrystal diamond film on the surface of a substrate subjected to helical grinding by a vapor phase synthesis method, then subjecting the product to a chemical treatment to dissolve and remove only the substrate, brazing the resulting polycrystal diamond film in a fluted form to at least a part of the rake face of a tool base metal subjected to helical grinding in the similar manner to the substrate and then subjecting the brazed tool base metal to working of a flank face to form a cutting edge. - 1 -
Nakai Tetsuo
Nakamura Tsutomu
Riches Mckenzie & Herbert Llp
Sumitomo Electric Industries Ltd.
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