Method of reducing defects in powder metallurgy tungsten carbide

Details Method of reducing defects in powder metallurgy tungsten carbide Method of reducing defects in powder metallurgy tungsten carbide

1980-09-10

1982-10-26

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75200, 75221, 75204, 148126, B22F 312

Patent

active

043560342

ABSTRACT:
A method is disclosed for manufacturing cutting elements of powdered tungsten carbide which involves sintering the powder into a solid element and then thermo-cycling the part to reduce internal defects.

REFERENCES:
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patent: 3964878 (1976-06-01), Schecthauer, Jr.
patent: 4032336 (1977-06-01), Reen
patent: 4121927 (1978-10-01), Lohman
patent: 4225344 (1980-09-01), Fujimori
Schwarzkopf, P. et al., "Cemented Carbides," MacMillan, N.Y., 1960, pp. 62-65, 74-89.

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