Cutting element and method of forming thereof
AssigneesBaker Hughes Incorporated, Element Six (Production) (Pty) Ltd, Element Six Limited
InventorsAnthony A. DiGiovanni, Nicholas J. Lyons, Matthew S. Hale, Konstantin E. Morozov, John H. Liversage, Danny E. Scott, Allen Sinor
Life of this patent
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Abstract
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.
Claims6
A cutting element for use in a drilling bit and/or milling bit comprising:
- a cutter body comprising:
- a substrate having an upper surface;
- and
- a 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.
Dependencies are inferred from the claim text.