Loading patent…
AssigneeGeneral Electric Company
InventorsDavid E. Slutz, Paul D. Gigl, Gary M. Flood, Gary W. Smith
Estimating the term…
Disclosed is a brazed implement comprising a thermally-stable polycrystalline diamond compact, e.g. a compact of self-bonded diamond particles having a network of inter-connected empty pores dispersed throughout the compact, bonded to another of said compact or bonded to a cemented carbide support by a brazing filler metal disposed therebetween. The brazing metal comprises an alloy having a liquidus above about 700.degree. C. and containing an effective amount of chromium. Translational shear strengths exceed about 50 kpsi even upon furnace cycling of the brazed implements and often exceed 90 kpsi. The method for fabricating the brazed implement also is disclosed.
In a method for fabricating a brazed implement comprised of a compact of self-bonded diamond particles having a network of interconnected empty pores dispersed throughout the compact bonded to itself or to a cemented carbide support by a brazing filler metal, the improvement which comprises brazing said compact to another compact or to a cemented carbide support using a brazing alloy having a liquidus above about 700.degree. C. and containing an effective amount of chromium.
In a method for fabricating a brazed implement comprised of a thermally-stable polycrystalline diamond compact bonded to itself or to a cemented carbide support by a brazing filler metal, the improvement which comprises brazing said compact to another compact or to a cemented carbide support using a brazing alloy having a liquidus above about 700.degree. C. and containing an effective amount of chromium.
Dependencies are inferred from the claim text.