Cemented carbide and cutting tool using same
US8801816B2 · kind B2 · utility
3Cited by
11References
10Claims
0Family size
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Key dates
| Filing date | Aug 11, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Jan 3, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C14/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.