Hard metal cutting bit
US3968550A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Dec 16, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/235
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hard metal cutting bit is useful both for rough cutting and for finishing, and comprises a polygonal member having parallel opposite main faces, and on at least one of the main faces a fillet that extends continuously about the edge of the main face, the fillet being concave and of greatest depth and width mid-way between the corners of the bit and of the least width and depth at the corners of the bit. A first chip breaker on the main face is next to the fillet and is of least width and depth mid-way between the corners and greatest depth and width adjacent the corners of the bit. A second chip breaker is next to the first and spaced by the first chip breaker from the fillet, and is discontinuous and concave and of greatest depth and width mid-way between the corners and terminates adjacent the corners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.