Cutting insert with raised cutting edge
US4915548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Dec 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/235
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting insert for chipforming machining of metal workpieces is disclosed, said insert comprising opposed top and bottom surfaces (11) and (12) and a peripheral wall (13) extending therebetween. The insert has cutting edges at the juncture between at least the top surface and said peripheral wall, a land area (15), and a first descending surface (16) starting from the top inner margin of said land. A number of convexly curved spaced projections (23, 26) being formed on or adjacent said first descending surface, the upper surface of each of said projections being planar and located below the plane defined by the cutting edges (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.