Superhard cutting element utilizing tough reinforcement posts

Details Superhard cutting element utilizing tough reinforcement posts Superhard cutting element utilizing tough reinforcement posts

1998-03-17

2000-02-29

Tsay, Frank

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175434, 51295, E21B 1046

Patent

active

060297603

ABSTRACT:
This invention relates to superhard cutting elements. Specifically, this invention relates to polycrystalline diamond and cubic boron nitride cutting elements produced by means of high pressure and high temperature. The cutting element of this invention features cylindrical reinforcement posts to toughen the cutting surface in the same fashion that rebar strengthens concrete. This invention also discloses an economical means of producing the substrate of the present invention.

REFERENCES:
patent: 5355969 (1994-10-01), Hardy et al.
patent: 5564511 (1996-10-01), Frushour
patent: 5622233 (1997-04-01), Griffin
patent: 5662720 (1997-09-01), O'Tighearnaigh
patent: 5862873 (1999-01-01), Matthias et al.
patent: 5875862 (1999-03-01), Jurewicz et al.

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