METHOD FOR MANUFACTURING A CUTTING PICK.

摘要

A cutting pick comprising a cutting tip (10) formed such as from SiC-D and a metal pick body (11). The pick body (11) has a greater coefficient of thermal expansion than the cutting tip (10). The pick body (11) includes a generally cylindrical cavity (14) within which is received a generally cylindrical anchor portion (13). The tip (10) includes a coating (17) bonded to the outer surface of the anchor portion (13). An annulus (24) is left between the coating (17) and the cavity (14) within which is a solder or braze material which bonds to each of the coating (17) and the cavity (14). The pick body (11) employs the difference in thermal expansion to exert pressure on the anchor portion (13) to fix the tip (10) to the pick body (11).