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Investigations of the Mechanical and Microstructural Effects of Pinless Tool Geometry on Friction Stir Spot Welding Process

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Abstract

In this study, mechanical properties, macrostructure and microstructure of the friction stir spot weld joints were investigated under the influence of pinless tool geometry and different rotation speed parameters (1350, 1850 and 2530 rpm) using Al5754 plates. Tensile shear strength tests were carried out for joints of different process parameters, and fracture surfaces were inspected by scanning electron microscopy; in addition, fracture modes of the joints were also evaluated. According to the results, the maximum strength values were obtained at 1850 rpm rotation speed, and ductile and brittle fractures were observed together.

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Authors and Affiliations

  1. Department of Automotive Engineering, Faculty of Engineering, Uludag University, 16059, Gorukle-Bursa, Turkey

    Hande Güler Özgül

  2. Department of Automotive Engineering, Graduate School of Natural and Applied Sciences, Uludag University, 16059, Gorukle-Bursa, Turkey

    Orhan Dedeoğlu

Authors
  1. Hande Güler Özgül
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  2. Orhan Dedeoğlu
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Correspondence to Hande Güler Özgül.

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Özgül, H.G., Dedeoğlu, O. Investigations of the Mechanical and Microstructural Effects of Pinless Tool Geometry on Friction Stir Spot Welding Process. Trans Indian Inst Met 73, 2281–2289 (2020). https://doi.org/10.1007/s12666-020-02034-3

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  • DOI: https://doi.org/10.1007/s12666-020-02034-3

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