Elements faced with superhard material
US5590728A · kind A · utility
58Cited by
7References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Nov 9, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A preform element, such as a cutting element for a drag-type drill bit, includes a facing table of superhard material having a front face, a peripheral surface, and a rear surface bonded to a substrate which is less hard than the superhard material. The rear surface of the facing table is integrally formed with a plurality of ribs which project into the substrate and extend in directions outwardly away from an inner area of the facing table towards the peripheral surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.