Surface-coated cutting tool
US7803464B2 · kind B2 · utility
9Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2005 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Nov 16, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C28/044
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface-coated cutting tool comprising a substrate, and a coating formed thereon, characterized in that the coating includes a first coating containing TiCN and a second coating containing α-type Al2O3, the first coating is interposed between the substrate and the second coating, and the second coating has compressive stress S1 on the rake face and tensile stress S2 on the flank face, with the compressive stress S1 and the tensile stress S2 being defined by the following expression;441 MPa≦|S1−S2|≦3500 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.