Cutting element and method of forming thereof

摘要

A cutting element for use in a drilling bit and/or milling bit having a cutter body made of a substrate having an upper surface, and a superabrasive layer overlying the upper surface of the substrate. The cutting element further including a sleeve extending around a portion of a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer.

主权项

1. A cutting element for use in a drilling bit and/or milling bit comprising:
a cutter body comprising:
a substrate having an upper surface; anda superabrasive layer overlying the upper surface of the substrate, the superabrasive layer comprising an upper surface extending transversely to a longitudinal axis of the cutter body, a rear surface opposite the upper surface, a side surface extending between the upper surface and the rear surface, and a chamfered surface extending at an angle to the longitudinal axis of the cutter body between the upper surface and the side surface; and a sleeve extending entirely circumferentially around and directly contacting a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer; and a layer of material having a Mohs hardness that is less than a Mohs hardness of the superabrasive layer disposed between the chamfered surface and the sleeve.