Cemented carbide with binder phase enriched surface zone and enh

Details Cemented carbide with binder phase enriched surface zone and enh Cemented carbide with binder phase enriched surface zone and enh

1994-02-07

1996-01-16

Walsh, Donald P.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 18, 419 30, 419 34, 419 53, C22C 2902

Patent

active

054844681

ABSTRACT:
Cemented carbide inserts are available containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on cobalt and/or nickel with a binder phase enriched surface zone. The binder phase content along a line essentially bisecting the rounded edge surfaces increases toward the edge and cubic phase is present. As a result, the edge toughness of the cutting inserts is improved.

REFERENCES:
patent: 4277283 (1981-07-01), Tobioka et al.
patent: 4548786 (1985-10-01), Yohe
patent: 4610931 (1986-09-01), Nemeth et al.
patent: 4649084 (1987-03-01), Hale et al.
patent: 4830930 (1989-05-01), Taniguchi et al.

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