Cutting tool insert
US7476437B2 · kind B2 · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | May 20, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to a cutting tool insert for metal machining comprising a coating comprising at least one wear resistant layer and a substrate and said insert further comprising clearance faces and rake faces intersecting to form cutting edges. The cutting edge has essentially no edge radius, the coating has been removed by grinding on the clearance face from at least close to the cutting edge and that the coating on the rake face has a surface roughness of less than about 0.3 μm over a measured length of 0.25 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.