| 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.
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