Welding of Dissimilar Metals - Although the problem of joining dissimilar metals is occurring with increasing frequency, not many people talk or write about it. The reason is that each joint is really a special case and both the metallurgical and design factors must be viewed in terms of how the joint will operate under specific stresses and environments.
L" Welding dissimilar metals has always presented rather a problem, due largely to the different ways in which metals respond to heat stresses and, therefore, the different strains on each side of the weld that joins them. When, however, the heat to which they are subjected is greatly reduced, problem becomes correspondingly simplified and in some cases distorting stresses are obviated altogether.
