Patent ID: 9144886
Filing Date: 2015-09-29
Classification: B01J,B22F,B24D,C04B,C22C,F16C

Abstract:
1. A method of processing a polycrystalline diamond element, the method comprising: providing a polycrystalline diamond element that is generally centered about a central axis, the polycrystalline diamond element comprising: positioning the polycrystalline diamond element within a protective leaching cup after at least one of mechanically smoothing and chemically smoothing at least a portion of the peripheral surface of the polycrystalline diamond element, the protective leaching cup comprising: exposing at least a portion of the polycrystalline diamond element to a leaching agent; wherein at least a portion of the side wall of the protective leaching cup extends axially beyond the cutting face of the polycrystalline diamond element when the polycrystalline diamond element is positioned within the protective leaching cup.