Coated cemented carbide cutting tool member
US6426137B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated cemented carbide cutting member for a cutting tool comprising a substrate and a hard coating layer on said substrate,wherein the hard coating layer comprises at least one layer selected from the group consisting of titanium carbide, titanium nitride, titanium cabonitride, titanium carboxide, titanium carbonitroxide, aluminum oxide, and aluminum oxide-zirconium oxide composite in which zirconium oxide phases are dispersed around ground aluminum oxide phases, andwherein the hard coating layer is provided with an outer layer which comprises titanium oxide which is expressed by the molecular formula TiOw, wherein w is the atomic ratio of oxygen to titanium which ranges from 1.20 to 1.90.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.