Cutting element with a non-planar, non-linear interface

Details Cutting element with a non-planar, non-linear interface Cutting element with a non-planar, non-linear interface

1997-09-02

1999-09-28

Tsay, Frank

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175431, E21B 1046

Patent

active

059572280

ABSTRACT:
A cutting element has a substrate with a non-planar, non-linear surface bonded to a superhard element. The substrate provides one or more non-linear grooves radially mounted in spaced relationships on the surface of the substrate. Each groove has a generally curved shape that unfurls from a first circle on the substrate towards a perimeter of the substrate. The groove shape is defined by complex functions, examples of which include high order polynomials and involutes. The depth and width of the groove varies, generally in an increasing manner, along the path from the first circle towards the substrate perimeter. Further, the pitch of the groove also varies along the path from the first circle towards the substrate perimeter.

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