Patent ID: 9303462
Filing Date: 2016-04-05
CPC Classification: B22F,B23K,C22C,E21B

Claim Text:
1. A cutter assembly, comprising: a substrate comprising polycrystalline diamond or polycrystalline cubic boron nitride, the substrate including: a surface circumscribed by a peripheral edge, a flank surface extending from the peripheral edge, and at least one pocket with an opening disposed on the surface and spaced apart from the peripheral edge, the at least one pocket extending from the opening towards an interior of the substrate; and at least one island disposed in the at least one pocket, wherein the at least one island comprises a thermally stable diamond material that is selected from the group consisting of diamond-silicon carbide composite and leached polycrystalline diamond, and the at least one island being directly coupled to the at least one pocket and including a cutting surface that is exposed by the opening of the at least one pocket, wherein the substrate and the at least one pocket are formed before disposing the at least one island in the at least one pocket, and wherein the island is directly adjacent to the polycrystalline diamond or polycrystalline cubic boron nitride substrate.