Parametric optimisation of friction stir welding on aluminium alloy (EN AW-1100) plates

Authors

  • Muhammad Umer Farooq Awan Pakistan Institute of Engineering and Applied Sciences, Department of Nuclear Engineering, Nilore, 45650, Pakistan
  • Mahmood Khan Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Materials Science and Engineering, Trondheim, 7491, Norway; Institute of Space Technology, Department of Materials Science and Engineering, Islamabad, 44000, Pakistan
  • Khalid Waheed Pakistan Institute of Engineering and Applied Sciences, Department of Nuclear Engineering, Nilore, 45650, Pakistan
  • Zafar Iqbal Pakistan Institute of Engineering and Applied Sciences, Department of Nuclear Engineering, Nilore, 45650, Pakistan
  • Abdul Rehman Pakistan Institute of Engineering and Applied Sciences, Department of Metallurgy and Materials Engineering, Nilore, 45650, Pakistan; Tsinghua University, School of Materials Science and Engineering, Key Laboratory of Advanced Materials, Beijing, 100084, China
  • Fahad Ali Pakistan Institute of Engineering and Applied Sciences, Department of Nuclear Engineering, Nilore, 45650, Pakistan
  • Muhammad Shahzad Tsinghua University, School of Materials Science and Engineering, Key Laboratory of Advanced Materials, Beijing, 100084, China
  • Muhammad Abdul Basit Saim Institute of Space Technology, Department of Materials Science and Engineering, Islamabad, 44000, Pakistan
  • Shahid Akhtar Hydro Aluminium AS, Research and Technology Development, Sunndalsøra, 6600, Norway
  • Ragnhild Elizabeth Aune Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Materials Science and Engineering, Trondheim, 7491, Norway

DOI:

https://doi.org/10.14311/AP.2023.63.0075

Keywords:

friction stir welding, parametric optimisation, mechanical properties, Taguchi method, ANOVA, aluminium alloys, EN AW-1100 alloy

Abstract

Friction stir welding is a solid-state welding process used extensively for aluminium alloys. EN AW-1100 alloy is mostly used for its exceptional corrosion resistance, high ductility, high thermal and electrical conductivities, and cost-effectiveness. This study is focused on the optimisation of friction stir welding parameters to achieve enhanced mechanical properties of 5mm thick EN AW-1100 alloy plates welded with a single pass, using Taguchi L9 orthogonal array and ANOVA analysis. Experimental results revealed that maximum tensile strength of 79 MPa and percentage elongation of 38.87 % were achieved. The maximum Vickers hardness achieved in the stir zone was 34.15. These results were used for optimisation using Minitab and it was determined that 2000 RPM, 30 mm·min−1 traverse speed and square probe profile came out to be the best parameters for maximum tensile strength. 4000 RPM, 30 mm·min−1 traverse speed and square probe geometry were the best parameters for maximum hardness in the stir zone. ANOVA analysis showed that the most significant parameter for tensile strength was traverse speed. None of the considered parameters were influencing the hardness value in the stir zone at a 95 % confidence level.

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Published

2023-05-02

How to Cite

Awan, M. U. F., Khan, M., Waheed, K., Iqbal, Z., Rehman, A., Ali, F., Shahzad, M., Saim, M. A. B., Akhtar, S., & Aune, R. E. (2023). Parametric optimisation of friction stir welding on aluminium alloy (EN AW-1100) plates. Acta Polytechnica, 63(2), 75–88. https://doi.org/10.14311/AP.2023.63.0075

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Vol. 63 No. 2 (2023)

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Articles

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Copyright (c) 2023 Muhammad Umer Farooq Awan, Mahmood Khan, Khalid Waheed, Zafar Iqbal, Abdul Rehman, Fahad Ali, Muhammad Shahzad, Muhammad Abdul Basit Saim, Shahid Akhtar, Ragnhild Elizabeth Aune

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