Recent days robot-supported cold metal transfer (CMT) welding gaining more attention in vast engineering disciplines including shipbuilding, automotive industry, aerospace and many more to weld (join) similar and dissimilar materials. The material AA6082-T4 alloy found to be key material for fabrication related applications in engineering fields. In this work, 5 mm thick AA6082-T4 and 1.2 mm diameter ER5356 wire electrode fillers were taken to conduct CMT welding. This work aimed to analyze the effect of various welding speed such as 10, 15, and 20 mm/s on the microstructure and mechanical properties of AA6082-T4 alloy. As per the ASTM E8M-04 standards, the welded materials were prepared to determine tensile strength and elongation of welded joints. The scanning electron microscopy (SEM) test were conducted to know the surface morphology of the weld area. The results revealed that the CMT welding provides greater ductility, excellent tensile strength when the welding speed increased from low level to high level.
Material characterization of CMT welded joints of AA6082-T4 alloys
C. Shanthi, S. Dhanasekhar, Nitish Kaushik, P. Saravanakumar, S. Balamurugan; Material characterization of CMT welded joints of AA6082-T4 alloys. AIP Conf. Proc. 14 October 2022; 2527 (1): 020003. https://doi.org/10.1063/5.0108114
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