Supported polycrystalline compacts

Details Supported polycrystalline compacts Supported polycrystalline compacts

1986-01-14

1989-01-10

Terapane, John F.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428551, 419 8, B22F 708

Patent

active

047973269

ABSTRACT:
Disclosed is a process for fabricating a composite polycrystalline diamond or cubic boron nitride (CBN) compact. Briefly, the process is conducted by mating a pre-formed sintered polycrystalline diamond or CBN compact and a plastically deformable support, and subjecting the mated composite compact to elevated temperature and pressure conditions sufficient to plastically deform the support into attachment with the compact. The temperature, pressure and time of application are inadequate to cause degradation of the diamond or CBN compact. The product configuration may be a conventional layered compact or may be a wire drawing die having a polycrystalline diamond or CBN core with a support jacket of a material such as a cemented metal carbide.

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patent: 3745623 (1973-07-01), Wentorf, Jr.
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patent: 4374900 (1983-02-01), Hara et al.
patent: 4403015 (1983-09-01), Nakai et al.
patent: 4505746 (1985-03-01), Nakai et al.
patent: 4525179 (1985-06-01), Gigl

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