Surface-coated cutting tool
US8715838B2 · kind B2 · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12458
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Wear resistance and chipping resistance are both highly established for a surface-coated cutting tool. The surface-coated cutting tool of the present invention includes a base material and a coat film formed on the base material. A first coat layer at a chamfer portion has residual stress that exhibits a minimal value at a depth A within 2 μm from the surface, and that is greater than or equal to −7 GPa and less than or equal to −1 GPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.