Enhanced pdc cutter pocket surface geometry to improve attachment
AssigneeHalliburton Energy Services, Inc.
InventorRobert W. Arfele
Life of this patent
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Abstract
The present disclosure relates to an industrial device, such as a drill bit including a PCD element located in a recess of the industrial device. The industrial device may also include a plurality of spacers distributed across a surface of the recess and a brazing material located along at least a portion of an interface between the PCD element and the recess.
Claims20
An earth-boring drill bit comprising:
- a polycrystalline diamond (PCD) element located in a recess of a bit body;
- a plurality of spacers distributed across a surface of the recess;
- and
- an adhesive located along at least a portion of an interface between the PCD element and the recess in an adhesive gap.
The bit of claim 8, wherein the adhesive gap is uniform.
The bit of claim 9, wherein the adhesive gap is optimal for the PCD element, adhesive, and bit body.
A displacement insert for use in fabricating an earth-boring drill bit, the displacement insert comprising:
- an insert body of a shape corresponding to a recess in the earth-boring drill bit;
- and
- a plurality of divots formed in the insert body, the divots shaped to correspond to a plurality of spacers distributed across a surface of the recess, the spacers substantially defining an adhesive gap between the recess and a polycrystalline diamond (PCD) element located in the recess.
Dependencies are inferred from the claim text.