Cutting insert adjacent chip breakers having sintered hard bodies disposed in corners
US5569000A · kind A · utility
38Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | May 26, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cutting insert is formed by making a body (e.g., carbide) which includes a chip face having an outer peripheral edge. The chip face includes a complex chip breaker structure, and a recess disposed between the edge and the chip breaker structure and spaced inwardly from the edge. The recess is filled with a powder of hard material (e.g., diamond or cBN) which is then transformed into a hard body under high pressure and heat conditions. The portion of the base disposed between the edge and the hard body is sufficiently thick to support the body during that pressing step. Then, some or all of that portion is ground away.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.