Method of manufacturing coated cutting tool and coated cutting tool made from
US5770261A · kind A · utility
23Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1997 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Jan 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/403
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of preparing a coated cutting tool is provided involving formation of a hard coating layer including an aluminum oxide layer to an average layer thickness of 3-20 microns on the surface of a cutting tool substrate using chemical vapor deposition and/or physical vapor deposition, to give a coated cutting tool excellent in chipping resistance, where the aluminum oxide layer is formed from an inert gas type reaction gas containing aluminum chloride and nitrogen oxides, and optionally titanium tetrachloride, nitrogen and hydrogen, in an inert carrier gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.