Molecular dynamics simulation of interface atomic diffusion in ultrasonic metal welding

Abstract The formation of a reliable joint between large number aluminum strands for battery applications is crucial in automotive industry, especially the technology autonomous vehicles. Therefore, this study, mechanical deformations and diffusion patterns mating interface ultrasonic welding were investigated using molecular dynamics simulations. Furthermore, microscopic observations joints from illustrating influence two process parameters done. To study nanomechanics formation, crystallites different orientations built. impact sliding velocity compression rate upper crystal block on pattern at quantified via coefficient. Tensile several configurations performed to investigate load-bearing capacity solid state bond, taking into account rate, crystallite orientation. atomic scale simulations revealed that govern tensile strength significantly. atom increased with increasing velocity. Additionally, it was observed higher enhances friction heat generation significantly increases temperature.