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Study on dissimilar friction stir butt welding of AA7075-O and AA2024-T4 considering the manufacturing limitation

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Abstract

In the present article, the effect of friction stir welding (FSW) parameters on the weldability and the characteristics of dissimilar weld of aluminum alloys, called AA2024-T4 and AA7075-O are investigated. A number of FSW experiments are carried out to obtain high-quality welds by adjusting the rotational and welding speeds. The weldability and blending of two materials are evaluated by using the macrostructural analysis to observe whether making a notch in a threaded cylindrical tool will lead to a better blend rather than the threaded taper tool or it will have no effects. The mechanical properties of the welds are studied through microhardness distribution and tensile tests. Furthermore, the microstructure analysis is performed to study the influence of the pin profile and the rotational speed on the grain size. Moreover, in the present study, one of the most major goals is to obtain high-quality welds by spending as little expenditure as possible. Therefore, it prevents using complicated and insupportable high welding speed equipments.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran

    Pouya Bahemmat & Mohammad Haghpanahi

  2. Department of Mechanical Engineering, University of Tehran, Tehran, Iran

    Mohammad Kazem Besharati Givi & Kambiz Reshad Seighalani

  3. Mapna Turbine Blade Engineering and Manufacturing Company (PARTO), Tehran, Iran

    Kambiz Reshad Seighalani

Authors
  1. Pouya Bahemmat
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  2. Mohammad Haghpanahi
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  3. Mohammad Kazem Besharati Givi
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  4. Kambiz Reshad Seighalani
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Correspondence to Pouya Bahemmat.

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Bahemmat, P., Haghpanahi, M., Besharati Givi, M.K. et al. Study on dissimilar friction stir butt welding of AA7075-O and AA2024-T4 considering the manufacturing limitation. Int J Adv Manuf Technol 59, 939–953 (2012). https://doi.org/10.1007/s00170-011-3547-4

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  • DOI: https://doi.org/10.1007/s00170-011-3547-4

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