Composite polycrystalline compact with improved fracture and del

Details Composite polycrystalline compact with improved fracture and del Composite polycrystalline compact with improved fracture and del

1995-05-15

1996-10-15

Tsay, Frank

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175434, 51293, E21B 1000, B24B 100

Patent

active

055645119

ABSTRACT:
A polycrystalline compact cutting element for use in operations that require high impact and abrasion resistance. The compact includes a substrate formed of tungsten carbide or other hard material with a diamond or cubic boron nitride layer bonded to a mounting surface on the substrate. The interface between the layers is defined by a three-dimensional topography formed with a plurality of surface irregularities in an arrangement whereby a straight line or a constant radii accurate line does not connect a series of adjacent surface irregularities.

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