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Influences of process parameters on tensile strength of friction stir welded cast A319 aluminium alloy joints

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Abstract

Fusion welding of cast A319 (Al-Si-Cu) alloy will lead to many problems including porosity, micro-fissuring, and hot cracking. Friction Stir Welding (FSW) can be used to weld A319 alloy without these defects. In this investigation, an attempt has been made to study the effect of FSW process parameters on the tensile strength of A319 alloy welded joints. Joints were made using different combinations of tool rotation speed, welding speed, and axial force, each at four levels. The quality of weld zone was analyzed using macrostructure and microstructure analysis. Tensile strength of the joints were evaluated and correlated with the weld zone microstructure. The joint fabricated with a 1200 rpm tool rotation speed, 40 mm/min welding speed, and 4 kN axial force showed superior tensile strength compared with the other joints.

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Authors and Affiliations

  1. Department of Mechatronics Engineering, Kongu Engineering College, Perundurai Erode, 638 052, Tamil Nadu, India

    M. Jayaraman

  2. Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, 641 014, Tamil Nadu, India

    R. Sivasubramanian

  3. Centre for Materials Joining Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar, 608 002, Tamil Nadu, India

    V. Balasubramanian & S. Babu

Authors
  1. M. Jayaraman
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  2. R. Sivasubramanian
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  3. V. Balasubramanian
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  4. S. Babu
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Correspondence to V. Balasubramanian.

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Jayaraman, M., Sivasubramanian, R., Balasubramanian, V. et al. Influences of process parameters on tensile strength of friction stir welded cast A319 aluminium alloy joints. Met. Mater. Int. 15, 313–320 (2009). https://doi.org/10.1007/s12540-009-0313-3

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  • DOI: https://doi.org/10.1007/s12540-009-0313-3

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