Composite polycrystalline cutting element with improved fracture

Details Composite polycrystalline cutting element with improved fracture Composite polycrystalline cutting element with improved fracture

1993-03-22

1994-10-18

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

761082, E21B 1046

Patent

active

053559690

ABSTRACT:
A cutting implement formed from a substrate of carbide, or other hard substance, bonded to a polycrystalline layer which serves as the cutting portion of the implement. The interface between the substrate and polycrystalline layer is defined by surface topography with radially spaced-apart protuberances and depressions forming smooth transitional surfaces.

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