MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Influence of Welding Parameters on Mechanical Properties of Friction Stir Welded 6061-T6 Launch Box
Hsing-Ta HsiehJahau Lewis Chen
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2008 Volume 49 Issue 10 Pages 2179-2184

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Abstract

Friction stir welding (FSW) is a welding process which deals with joining parts in a solid state at low temperature to result in welded parts with excellent mechanical performance, such as low distortion and high tensile strength. Additionally friction stir welding is applicable to aluminum alloy products with precision dimensions. By using friction stir welding parameters, this research studies the tensile strength, hardness, elongation rates, and shrinkage of extruded 6061-T6 alloy. Results indicate that the joining strength of the extruded 6061-T6 alloy can reach 78% of the base metal after friction stir welding. Meanwhile, welding parameters can accurately predict and control the welding distortion of welded products. This research applies these results in the manufacturing of launch boxes to arrive at a technology that can be directly applied to welded products without expensive as-welded modifications.

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© 2008 The Japan Institute of Light Metals
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