Coated cutting tool
US7972714B2 · kind B2 · utility
7Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2005 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Sep 22, 2027 |
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 coated cutting tool (1) including a substrate (8) and a coating (9) formed on the substrate (8), wherein the coating (9) includes a first coating (10) composed of TiCN and a second coating (11) composed of α-Al2O3, the first coating (10) is positioned between the substrate (8) and the second coating (11) and has tensile stress S1, the second coating (11) has compressive stress S2, and the tensile stress S1 and the compressive stress S2 are defined by the following equation (I):400 MPa≦|S2−S1|≦3500 MPa (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.