Cold welding - theoretical modeling of the weld formation

Abstract

Based on experimental investigations and an improved understanding of the mechanisms of weld formation in cold welding, a general theoretical model for weld strength in cold welding - earlier developed by Bay - has been extended and modified. The new model presented in this paper simulates the whole cold welding process, including the deformation of base metals and the resulting weld strength in welding similar, as well as dissimilar, metals. To verify the theoretical model, the calculated weld strengths are compared with experimental measurements. Good accordance is generally found, which shows the model is applicable.