Superabrasive cutters with structure aligned to loading and meth

Details Superabrasive cutters with structure aligned to loading and meth Superabrasive cutters with structure aligned to loading and meth

1997-02-03

1999-10-19

Bagnell, David J.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175432, E21B 1046

Patent

active

059672498

ABSTRACT:
A cutter for use on a rotary-type drag bit for earth boring is provided comprising a substantially rectangular diamond table attached to a substrate. At least one elongated support structure made of polycrystalline diamond is contained in the cutting substrate and extends from the cutting edge of the diamond table and into the substrate. The support structure is generally arranged in line with a predicted drilling force vector that will be applied to the cutting element during drilling. The support structure, in addition to or in lieu of providing support for the cutting element, may also serve to enhance heat transfer away from the cutting face and cutting edge of the superhard table.

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