Aluminum oxide coated tool
US5861210A · kind A · utility
80Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1995 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jul 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
There is provided a tool at least partly coated with at least two refractory layers of which one of the said layers is a fine-grained .alpha.-Al.sub.2 O.sub.3 -layer which is the top layer along the cutting edge-line and the other a TiC.sub.x N.sub.y O.sub.z - or a ZrC.sub.x N.sub.y -layer being the top layer on the clearance face. The coated tool exhibits excellent flank and crater wear and high resistance to flaking, particularly when used for machining of low carbon steel and stainless steel. Used cutting edges can easily be identified by the naked eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.