Abrasive cutting element and drill bit
US5743346A · kind A · utility
49Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An abrasive cutting element comprised of an abrasive cutting layer and a metal substrate wherein the interface therebetween has a tangential chamfer, the plane of which forms an angle of about 5.degree. to about 85.degree. with the plane of the surface of the cylindrical part of the metal substrate. The abrasive cutting layer is preferably diamond or cubic boron nitride and the metal substrate is preferably tungsten carbide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.