A method of rough shaping a prosthetic joint component that includes a generally spherical polycrystalline diamond compact by electric discharge machining is disclosed. The discharge machining electrode roughens a polycrystalline diamond compact sphere while the electrode and the sphere are rotating...http://www.google.com/patents/US6410877?utm_source=gb-gplus-sharePatent US6410877 - Methods for shaping and finishing prosthetic joint components including polycrystalline diamond compacts
