B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
25/140, 57/16
B24D 3/16 (2006.01) B01J 3/06 (2006.01) B23P 5/00 (2006.01) C03B 33/10 (2006.01) C09K 3/14 (2006.01) C22C 26/00 (2006.01)
Patent
CA 1149619
ABSTRACT OF THE DISCLOSURE The invention relates to a diamond sintered body having a high wear resistance and enabling to obtain a processed surface of high dimensional precision and beautiful finish as a wear resisting tool blank for use particularly in a wire drawing die, shaving die and the like, as a tool blank for use in a cutting tool for a workpiece consisting of nonferrous metals, plastics, ceramic, etc., and as a cutting tool blank for use in a glass cutter, synthetic building material cutting blade, etc., and the method for producing the same. wherein a mixture comprising a diamond powder below 1µ and a powder below 1µ of one or more than two kinds of carbides, nitrides and borides of IVa, Va and VIa group metals of the periodic table, and further a powder of iron group metals is placed between a plurality of cemented carbide plates and then subjected to hot press sintering at a high temperature and high pressure under which diamond is stable thereby enabling to obtain a diamond sintered body having a high properties suitable for the aforesaid uses.
334154
Hara Akio
Yazu Shuji
George H. Riches And Associates
Sumitomo Electric Industries Ltd.
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