Friction stir welding tool and friction stir welding method
US12311461B2 · kind B2 · utility
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3References
5Claims
0Family size
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Key dates
| Filing date | Apr 7, 2022 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Apr 7, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/15
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A friction stir welding tool and a friction stir welding method that can increase the amount of heat generation, while reducing the amount of escaping heat are provided. The friction stir welding tool (1) has a shoulder portion (7) and a probe portion (5) provided on a bottom surface of the shoulder portion (7). The base material of the friction stir welding tool (1) is a ceramic material whose main phase is silicon nitride or sialon. The shoulder portion (7) has a diameter of 35 mm or greater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.