Apparatus and method for effecting pin-to-shoulder tool separation for a friction stir welding pin tool
US8141859B2 · kind B2 · utility
0Cited by
31References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2007 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jan 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53983
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for separating a pin tool from a shoulder tool, after the pin tool and shoulder tool have become welded together during a friction stir welding operation. In one exemplary embodiment a frame is used to support the shoulder tool. A fluid pressure actuating assembly is used for gradually exerting a force on the pin tool while the shoulder tool is held stationary within the frame. The gradually increasing force gradually breaks the weld and separates the pin tool from the shoulder tool without damaging the pin tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.