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Process robustness and strength analysis of multi-layered dissimilar joints using ultrasonic metal welding

Author(s): 
Abhishek Das, Iain Masters, David Williams (University of Warwick)

This paper investigates the effects of process parameters on the joint strength and process robustness when multi-layered joints of dissimilar metals are produced by ultrasonic metal welding (UMW). Relying on the weldability zone and response surfaces, multi-objective optimisation is performed to obtain maximum lap shear and T-peel strength which resulted in Pareto frontier or trade-off curve between both objectives.