Rock bit compact and method of manufacture

摘要

A method is shown for manufacturing a diamond filled compact of the type used as a cutting insert which is received in a cutting insert pocket in a drill bit. A hard metal jacket is provided having an open end and an open interior. The open interior is substantially filled with diamond. The diamond filled jacket is subjected to a temperature and a pressure sufficient to sinter the diamond and integrally form a diamond core within the hard metal jacket. The outer dimensions of the hard metal jacket are then reduced to a size selected to conform to a cutting insert pocket provided on the face of a drill bit.