Apparatus for friction stir welding
US6419142B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Aug 30, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/126
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns an apparatus for friction stir welding, comprising a welding unit including a welding head, a worktable including a backing unit to support the workpieces to be welded together along their joint line, and clamping means to clamp the workpieces to the worktable in a direction towards one another during the welding operation. The backing unit consists of at least two backing parts or of at least one backing part and one additional welding head, said backing parts being freely exchangeable, one for the other, before each welding operation as is also each backing part freely exchangeable for the additional welding head, and vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.