Abstract
Studying each stage of the friction stir welding (FSW) in detail provides a more complete understanding of the process. In this study plunge stage in FSW has been studied experimentally. Effects of pin shape on the temperature distribution around the tool during the plunge stage have been examined by placing thermocouples around the tool in the workpiece and measuring the temperature during the process. Tools which had square, triangle and cylindrical pin shape were used to investigate the effects of pin shape on the temperature of the workpiece. Temperature distribution was asymmetric around the tools and temperature was a little higher behind the tools and at advancing side. The arrangement of the points according to the temperature was similar in all samples. It was found that most of the heat is generated by friction and the effect of friction on the workpiece temperature was more than plastic deformation. Shoulder had more considerable effects on the workpiece temperature compared to the pin.
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Bisadi, H., Rasaee, S. & Farahmand, M. Effects of Pin Shape on the Tool Plunge Stage in Friction Stir Welding. Trans Indian Inst Met 67, 989–995 (2014). https://doi.org/10.1007/s12666-014-0421-8
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DOI: https://doi.org/10.1007/s12666-014-0421-8