Fracture resistant friction stir welding tools
US7383975B2 · kind B2 · utility
7Cited by
16References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/1255
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fracture resistant friction stir welding tool includes a pin for plunging into one or more workpiece(s) to be welded and a shoulder for preventing plasticized material from flowing out of the joint being welded. The friction stir welding tool includes a tool body including a cavity for receiving the shoulder and exerting a compressive stress on the shoulder, and the pin is placed in compression by an axial tension member in the pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.