Coated hard metal tool
US4643620A · kind A · utility
44Cited by
0References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | May 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting insert having excellent toughness as well as wear resistance is provided comprising a substrate consisting of a sintered hard metal or alloy such as cemented carbides and a coating film provided thereon consisting of a material having a higher hardness than the substrate, characterized in that the coating film near the cutting edge is continuously made thinner or removed toward both the rake face and flank face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.