Abstract
Ultrasonic Welding can join thin sheets of similar or dissimilar non-ferrous alloys, such as copper, aluminium, magnesium, and brass as it creates a reliable bond that can withstand high loads by producing welds of high quality without the use of filler material. In this investigation, the use of brass, copper and nickel interlayers as well as without interlayer between the Ultrasonic Welded aluminium and magnesium base metals is examined in relation to several welding parameters, including weld pressure, weld time, and hold time. The interlayers used acted as a diffusion barrier, preventing the formation of thicker brittle intermetallic compounds at the interface between the two dissimilar metals. It was figured out that using brass interlayer, exhibited an improvement in joint tensile strength of 140 MPa and as a result of completing the Vickers microhardness test, ultrasonic welded Al/Mg welded alloy sheets with nickel interlayer exhibited the hardness value of 150 HV.
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The authors would like to thank Centre for Research, Anna University, Chennai for providing the financial assistance to carry out this work.
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Selvaraj, S., Srirangarajalu, N., Kengachalam, N. et al. Experimental Investigation of Microstructure and Mechanical Properties on Ultrasonic Welded Al–Mg Alloy Sheets. Trans Indian Inst Met 77, 975–985 (2024). https://doi.org/10.1007/s12666-023-03202-x
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DOI: https://doi.org/10.1007/s12666-023-03202-x