Drill bit compact with boron or beryllium for fracture resistanc

Details Drill bit compact with boron or beryllium for fracture resistanc Drill bit compact with boron or beryllium for fracture resistanc

1998-03-04

2000-08-08

Lillis, Eileen Dunn

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175425, 175426, E21B 1046

Patent

active

060987316

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

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