Coated cutting tool
US12392030B2 · kind B2 · utility
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15Claims
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Assignee
Inventor
Key dates
| Filing date | Feb 26, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Jun 14, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2228/105
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated cutting tool for metal machining has a base body of cemented carbide, cermet, ceramics, steel or high-speed steel, and a wear resistant coating deposited thereon. The coating includes a layer of Ti1-xAlxCyNz with 0.40≤x≤0.95, 0≤y≤0.10 and 0.85≤z≤1.15, and a portion of MeCaNb, 0≤a≤1, 0≤b≤1, a+b=1, present on the layer of Ti1-xAlxCyNz. The portion of MeCaNb covers from 5 to 28% of the layer of Ti1-xAlxCyNz. A process for the production of the coated cutting tool and the use of the coated cutting tool in machining of stainless steel is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.