Influence of Welding Parameters on Mechanical Properties of Friction Stir Welded 6061-T6 Launch Box

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  • Hsieh Hsing-Ta
    Department of Mechanical Engineering, National Cheng Kung University Metal Industry Research & Development Centre
  • Chen Jahau Lewis
    Department of Mechanical Engineering, National Cheng Kung University

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Description

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.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 49 (10), 2179-2184, 2008

    The Japan Institute of Metals and Materials

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