Cutting element with stress reduction

Details Cutting element with stress reduction Cutting element with stress reduction

1998-04-16

2000-02-22

Neuder, William

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175428, E21B 1012

Patent

active

060269197

ABSTRACT:
An improved disc-shaped cutting element including first and second major flat surfaces and a cutting edge, said element comprised of a hard metal substrate defining an irregular interface bonded to a polycrystalline diamond, where said interface includes a plurality of concentric and redial grooves adapted to receive corresponding protrusions formed on the diamond layer so as to enhance wear like and impact resistance.

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patent: 5469927 (1995-11-01), Griffin
patent: 5474143 (1995-12-01), Majkovic

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