Material for diamond sintered body die and diamond sintered...

Details Material for diamond sintered body die and diamond sintered... Material for diamond sintered body die and diamond sintered...

2006-11-07

2006-11-07

Crane, Daniel C. (Department: 3725)

Metal deforming

Tool and/or tool holder

Tool comprising closed periphery deforming passageway

C423S446000

Reexamination Certificate

active

07131314

ABSTRACT:
To provide a diamond compact die semi-manufactured product and a diamond compact die that do not crack during die processing.A diamond compact die semi-manufactured product includes a diamond compact and a holding ring. The holding ring is a cylinder composed of a tungsten alloy, and the inner diameter thereof is tapered. The diamond compact is tapered so as to fit to the taper of the cylinder and the diamond compact is press-fitted to the holding ring. For lower cost production, the tapered face of the diamond compact is formed by electric spark machining. The tungsten alloy contains 90% to 97% by weight of tungsten and 3% to 10% by weight of nickel.

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