Thick pointed superhard material

Details Thick pointed superhard material Thick pointed superhard material

2009-11-25

2011-10-04

Neuder, William P (Department: 3676)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S425000, C175S435000

Reexamination Certificate

active

08028774

ABSTRACT:
A high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches from the apex to a central region of the cemented metal carbide substrate. The diamond material comprises a 1 to 5 percent concentration of binding agents by weight.

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