Expandable mandrel for use in friction stir welding
US8056797B2 · kind B2 · utility
13Cited by
47References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir welding heads to simultaneously perform welding on the arcuate surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.