High density boron nitride-containing sintered body for cutting

Details High density boron nitride-containing sintered body for cutting High density boron nitride-containing sintered body for cutting

1983-09-20

1986-01-28

Terapane, John F.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75238, 75233, B22F 314

Patent

active

045669058

ABSTRACT:
A high density boron nitride-containing sintered body consisting of 60-95% by volume of high density boron nitride and 40-5% by volume of metal alone or in admixture with a ceramic, which high density boron nitride consists of 60-95% by volume of cubic system boron nitride and 40-5% by volume of wurtzite-structured boron nitride, and which cubic system boron nitride has an average particle size of at least 5 times that of the wurtzite-structured boron nitride. The sintered body has a high cutting performance and is suitable as a cutting tool for chilled roll, ultra-heat resisting alloy, cast iron and the like.

REFERENCES:
patent: 4334928 (1982-06-01), Hara et al.
patent: 4343651 (1982-08-01), Yazu et al.
patent: 4394170 (1983-07-01), Sawaoka et al.
Hausner, Handbook of Powder Metallurgy, Chemical Pub. Co., N.Y. (1973), p. 14.

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