Multi-sheet Structures in 7475 Aluminum by Friction Stir Welding in Concert with Post-weld Superplastic Forming
Diffusion bonding/superplastic forming (DB/SPF) is an established fabrication technology for titanium aerospace components. However, DB cannot be applied easily to aluminum alloys because of tenacious surface oxides. Friction stir welding may eliminate this problem and allow fabrication of multi-sheet structures via friction stir welding/SPF.
R. S. Mishra et al., "Multi-sheet Structures in 7475 Aluminum by Friction Stir Welding in Concert with Post-weld Superplastic Forming," Scripta Materialia, Elsevier, Nov 2002.
The definitive version is available at http://dx.doi.org/10.1016/S1359-6462(02)00257-9
Materials Science and Engineering
National Science Foundation (U.S.)
Keywords and Phrases
Annealing; High Temperature Mechanical Properties; Aluminum alloys; Friction stir welding
Article - Journal
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