Cemented carbide tool
US4764255A · kind A · utility
20Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Mar 13, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/62
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool or wear part comprises a cast iron or cast steel body carrying a plurality of cast-in inserts. Each insert comprises a cemented carbide cutting or wearing element partially embedded in the body, and an enclosure completely surrounding the embedded portion of the element. The enclosure is cast-in with respect to the body and has a higher melting point than the body. The enclosure is connected by a metallurgical bond to the body and by a shrink-fit to the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.