Lightweight cemented carbide
US12276011B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Jan 23, 2020 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Aug 13, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a cemented carbide suitable for use as a material in the manufacture of a punch for metal forming and in particular for the manufacture of metal beverage cans. The cemented carbide may include a hard phase that includes WC, a binder phase and a gamma phase. The gamma phase may include metal carbides in combination with metal nitrides or metal carbonitrides. A quotient of the average grain size of WC/the average grain size of the gamma phase may be in a range of from 0.5 to 1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.