Supported polycrystalline compacts
US4797326A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jan 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12056
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.