Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1980-03-31
1982-08-10
Rutledge, L. Dewayne
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75239, 75236, 75202, 75203, B22F 314
Patent
active
043436510
ABSTRACT:
An improved sintered compact for use in a cutting tool is proposed which comprises 80 to 95 volume % of high pressure form boron nitride, a binder material which is a carbide, a nitride and/or a carbonitride of a IVb and Vb transition metal in the periodic table, and aluminum compounds. It may further include copper and/or iron group metal or metals. The sintered compact obtained has high hardness even though the sintering pressure and temperature are relatively low.
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"Metal Cutting Tool Tip with Improved Abrasion Resistance", Hara et al., Chemical Abstracts, vol. 91, article 161,863c, Apr. 1979.
Hara Akio
Yazu Shuji
Rutledge L. Dewayne
Sumitomo Electric Industries Ltd.
Zimmerman J. J.
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