Coated carbide alloy cutting member exhibiting excellent resistance against chipping
US5985427A · kind A · utility
21Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated carbide alloy cutting member is provided exhibiting excellent resistance against chipping, wherein the cutting member has a cemented carbide substrate and one or more hard coating layers including an aluminum oxide-based layer primarily of aluminum oxide, the hard coating layers having an average thickness of 3 to 20 .mu.m and being formed on the cemented carbide substrate by chemical and/or physical vapor deposition; and wherein the aluminum oxide-based layer contains 0.005 to 0.5 percent by weight of chlorine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.