Coated cutting insert with a C porosity substrate having non-stratified surface binder enrichment
US6217992A · kind A · utility
31Cited by
27References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cutting insert which comprises a rake face and a flank face wherein there is a cutting edge at the juncture of the rake face and the flank face. The cutting insert has a coating and a substrate wherein the coating is adherently bonded to the substrate. The substrate is a tungsten carbide-based cemented carbide wherein there is a zone of non-stratified cobalt enrichment beginning near and extending inwardly from a peripheral surface of the substrate. The bulk substrate has a porosity of greater than C00 and less than or equal to C04.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.