Method of machining using coated cutting tools
US5325747A · kind A · utility
24Cited by
26References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1992 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Aug 13, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a coated cutting tool having a coating and a substrate. The coating includes at least one CVD layer which may have a residual tensile stress and at least one layer having a high residual compressive stress. The outermost layer of the coating is preferably the one containing residual compressive stresses. The substrate is a composite having hard refractory grains. The cutting tool has been found to be particularly useful in the machining of titanium alloys and superalloys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.