Thermally stable polycrystalline diamond with enhanced attachment joint
AssigneeHalliburton Energy Services, Inc.
InventorsSeth Garrett Anderle, Cody William Knuteson
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Abstract
The present disclosure relates to an industrial device, such as a drill bit including a thermally stable polycrystalline diamond (TSP) table coupled to a substrate via an attachment joint, with at least one attachment material located in the attachment joint. At least one of the attachment materials includes a metal or metal alloy and an additive material having a hardness higher than the metal or metal alloy or a coefficient of thermal expansion lower than that of the metal or metal alloy.
Claims20
A thermally stable polycrystalline diamond (TSP) element comprising a TSP table coupled to a substrate at an attachment joint positioned adjacent to the TSP table and adjacent to the substrate, the attachment joint including at least one composite attachment material comprising a metal or metal alloy and further including a steel additive material having a coefficient of thermal expansion (CTE) lower than that of the metal or metal alloy.
A thermally stable polycrystalline diamond (TSP) element comprising a TSP table coupled to a substrate at an attachment joint positioned adjacent to the TSP table and adjacent to the substrate, the attachment joint including at least one composite attachment material including a metal or metal alloy and further including a steel additive material having a hardness greater than that of the metal or metal alloy.
A method of manufacturing a thermally stable polycrystalline diamond (TSP) element comprising forming an attachment joint between a TSP table and a substrate and positioned adjacent to the TSP table and adjacent to the substrate, the attachment joint including at least one composite attachment material comprising an active braze alloy, wherein the attachment joint comprises a carbide layer formed on the surface of the TSP table by the active braze alloy and the at least one composite attachment material comprising a metal or metal alloy and further including a steel additive material having a coefficient of thermal expansion (CTE) lower than that of the metal or metal alloy or an additive material having a hardness greater than that of the metal or metal alloy.
Dependencies are inferred from the claim text.