Abstract
Friction stir welding (FSW) is considered as a sustainable and green alternative to conventional welding techniques. However, the pinhole left after welding is one of the major defects. This study discusses a novel technique of refilling the pinhole, left after conventional friction stir spot welding (FSSW) of aluminium alloy AA6082 overlapping sheets, using waste aluminium chips. The maximum load-bearing capacity of the refilled joint was found using T-peel test. The results were compared with that of conventional FSSW using a tool with pin and FSSW using pin-less tool. Further, the process parameters used for welding, viz. rotational speed, plunge depth during welding and plunge depth during refilling, have been optimized using evolutionary optimization technique to arrive at the optimum maximum load-bearing capacity of the joint for the mentioned process.
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Bhardwaj, N., Ganesh Narayanan, R., Dixit, U.S. (2020). Refilling of Pinhole in Friction Stir Spot Welding Using Waste Chips. In: Shunmugam, M., Kanthababu, M. (eds) Advances in Additive Manufacturing and Joining. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-32-9433-2_34
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DOI: https://doi.org/10.1007/978-981-32-9433-2_34
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