Friction stir weld repair
US7281647B2 · kind B2 · utility
11Cited by
5References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/1225
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of repairing a discrepancy in a casting, weldment or other workpiece comprised of a material characterized by thermoplastic properties includes excising the discrepancy by cutting, milling, or otherwise removing workpiece material surrounding the discrepancy so as to remove the discrepancy and form a cylindrical hole in the workpiece. The method further includes placing a cylindrical plug in the cylindrical hole and moving a friction stir welding tool around the circumference of the plug to weld the plug to the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.