PDC cutters with improved toughness

Details PDC cutters with improved toughness PDC cutters with improved toughness

1995-12-07

1998-10-13

Turner, Archene

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

51307, 428457, 428465, 428698, 428704, B24D 1100

Patent

active

058209859

ABSTRACT:
A polycrystalline diamond layer attached to a cemented metal carbide structure used as a cutter wherein the cutter has improved toughness or fracture resistance during use through the inclusion of boron, beryllium or the like therein.

REFERENCES:
patent: 4403015 (1983-09-01), Nakai et al.
patent: 4690691 (1987-09-01), Komanduri
patent: 4961780 (1990-10-01), Pennington, Jr.
patent: 4988421 (1991-01-01), Drawl et al.
patent: 5011514 (1991-04-01), Cho et al.
patent: 5011515 (1991-04-01), Frushour
patent: 5022894 (1991-06-01), Vagarali et al.
patent: 5037704 (1991-08-01), Nakai et al.
patent: 5111895 (1992-05-01), Griffin
patent: 5116416 (1992-05-01), Knox et al.
patent: 5151107 (1992-09-01), Cho et al.
patent: 5176720 (1993-01-01), Martell et al.

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