Application of Recrystallization Equation to the Selection of Welding Conditions

Abstract

In the previous papers, it was made clear that the width of recrystallized soft zone in HAZ of cold rolled material could be calculated by combining the recrystallization equation with the heat conduction equation in welding.
On the other hand, the method to estimate the strength of welded joint including soft layer has been proposed.
Therefore, in this paper, a method to escimate the strength of welded joint of cold rolled material was proposed by combining the two methods mentioned above.
Then, the validity of this method was confirmed on electron beam welded joints of cold rolled com-mercial-purity aluminum. That is, strength of joints with and without filler metal coincided fairly well with the estimated values.