Method of friction stir welding dissimilar metals and workpiece assemblies formed thereby
US8464926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2009 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12729
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a process for friction stir welding together pieces of dissimilar material, a first piece of a second metal is overlaid onto a first piece of a first metal that is dissimilar from the second metal such that at least a portion of the first piece of second metal overlaps a portion of the first piece of first metal. A second piece of the first metal is placed in side-to-side relationship with the first piece of second metal and overlies another portion of the first piece of first metal. The relative arrangement between the second piece of first metal and the first piece of second metal define a joint line overlying the first piece of first metal. The first piece of first metal, the first piece of second metal, and the second piece of first metal are friction stir welded together along the joint line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.