Cutting element having a stud and cutting disk bonded thereto

Details Cutting element having a stud and cutting disk bonded thereto Cutting element having a stud and cutting disk bonded thereto

1987-02-03

1988-01-05

Leppink, James A.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175410, 407118, E21B 1046

Patent

active

047169753

ABSTRACT:
A cutting element for use in rotary drill bits comprises a generally cylindrical stud and a cutting disk bonded to a supporting surface of the stud. The supporting surface intersects a cylindrical side surface of the stud to form an edge. The supporting surface includes a plurality of alternating projections and grooves extending in a front-to-rear direction of a supporting surface. The projections and grooves include rear ends terminating short of the edge to minimize the formation of stress cracks in the edge.

REFERENCES:
patent: 4529048 (1985-06-01), Hall
patent: 4629373 (1986-12-01), Hall

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