Drill bit insert with sinusoidal interface

Details Drill bit insert with sinusoidal interface Drill bit insert with sinusoidal interface

1995-05-18

1998-01-20

Schoeppel, Roger J.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175432, E21B 1036

Patent

active

057092796

ABSTRACT:
An insert is defined by the present invention. The insert is an elongate cylindrical body having two end faces. At the extended end, the end face supports a PDC layer which is bonded thereto by brazing or sintering and is formed of PDC material to resist impact or shock loading and to provide a long life. The PDC layer is joined to the insert body at a surface which is defined by a central elevated point, the point being relatively small in diameter or is a point, land wherein said straight radial lines extend downwardly and outwardly therefrom. The intercept of the end face with the outer surface of the insert body is an undulating sinusoidal wave form of multiple sinusoidal cycles. This provides a shock resistant insert construction.

REFERENCES:
patent: 5180022 (1993-01-01), Brady
patent: 5303787 (1994-04-01), Brady
patent: 5383526 (1995-01-01), Brady

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