Metal cutting tools utilizing gradient composites
US4368788A · kind A · utility
61Cited by
9References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1980 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Sep 10, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rolling cutter drill bit is disclosed having cutters manufactured by powder metallurgy techniques, said cutters having gradient composite metallic structures in the cutting areas arranged to reduce or eliminate physical and metallic discontinuities and stress risers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.