Friction stir spot welding apparatus and friction stir spot welding method
US10293431B2 · kind B2 · utility
2Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2015 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A friction stir spot welding apparatus includes a pin member, a shoulder member, a rotation driver, a forward/backward movement driver, and a controller. The controller controls the forward/backward movement driver, such that the pin member and/or the shoulder member press workpieces before a clamp member presses the workpieces, and then controls the rotation driver and the forward/backward movement driver, such that the pin member and the shoulder member stir the workpieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.