Supported polycrystalline compacts

Details Supported polycrystalline compacts Supported polycrystalline compacts

B - Operations, Transporting

22

F

25/132, 57/15

B22F 7/08 (2006.01) B24D 3/04 (2006.01) B24D 18/00 (2006.01)

Patent

CA 1273495

SUPPORTED POLYCRYSTALLINE COMPACTS ABSTRACT OF THE DISCLOSURE Disclosed is a process for fabricating a composite polycrystalline diamond or cubic boron nitride (CBN) compact. Briefly, the process is conducted by mating apre-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 diehaving a polycrystalline diamond or CBN core with a support jacket of a materialsuch as a cemented metal caribide.

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