Cutting insert for hard-to-cut material
US11123803B2 · kind B2 · utility
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Key dates
| Filing date | Nov 21, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 2, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a PVD ceramic thin film-coated cutting insert properly usable for machining a hard-to-cut material such as inconel or titanium having low thermal conductivity. The cutting insert for hard-to-cut materials includes a cemented carbide base material having an SMS value of 50-80% obtained by [Formula 1] below, and a ceramic thin film formed on the cemented carbide base material and having a thickness of about 0.4-1.5 μm. [Formula 1]: SMS=Saturation magnetization value of sintered body×100/TMS, where TMS=2010×Mass ratio of Co.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.