Patent ID: 9732563
Date: 2017-08-15
CPC Classifications: B24D,E21B

Claim:
1. A polycrystalline diamond compact, comprising: a single cemented carbide substrate including a cobalt-containing cementing constituent with a balance being a plurality of tungsten carbide grains, the cobalt-containing cementing constituent cementing the plurality of tungsten carbide grains together that exhibit an average grain size of about 0.8 μm to about 1.5 μm, the single cemented carbide substrate including an interfacial surface and a depletion zone that extends inwardly from the interfacial surface to a depth of about 30 μm to about 50 μm; and a polycrystalline diamond table bonded to the interfacial surface of the single cemented carbide substrate, the polycrystalline diamond table including a plurality of diamond grains bonded together and defining a plurality of interstitial regions, the plurality of the diamond grains exhibiting an average grain size of about 30 μm or less, at least a portion of the polycrystalline diamond table including a metallic constituent disposed in at least a portion of the plurality of interstitial regions.