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

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.