COLD WELDING - THEORETICAL MODELING OF THE WELD FORMATION

Based on experimental investigations and an improved understanding of the mechanisms of weld formation in cold welding, a general theoretica l 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 o f base metals and the resulting weld strength in welding similar, as w ell as dissimilar, metals. To verify the theoretical model, the calcul ated weld strengths are compared with experimental measurements. Good accordance is generally found, which shows the model is applicable.