Patent ID: 8662209
Filing Date: 2014-03-04
Classification: B22F,C04B,C22C,E21B

Abstract:
1. A PDC cutter, comprising: a substrate; a diamond table mounted to the substrate, the diamond table comprising diamond crystals and interstitial catalyst binder, the diamond table further having a front face with a thermal channel where the interstitial catalyst binder has been removed and further formed to additionally include in the thermal channel a material, the material being introduced to fill at least some interstitial voids left by removal of the interstitial catalyst binder in the thermal channel to a desired depth, the material being less thermally expandable than the catalyst binder and more thermally conductive than the catalyst binder; and wherein the material is selected from a group consisting of: carbon, boron, molybdenum, cubic boron nitride, boron carbide, and titanium carbide (TiC