Methods of calculation of weldpool surface form on the reverse side of plate under welding by impulse penetrative arc

Model of calculating formation of camber and surface of welded point under welding by impulse penetrative arc is presented. The specific feature of the model lies in the fact, that it takes into account two simultaneous processes: metal movement to equilibrium state and crystallizatin of liquid metal of a pool . Correlation of calculation and experimental results shows the sufficient adequacy of the model and real processes. The model can be used for analyzing the process of welding by pulse penetrative arc and for evaluating camber and shape of the surface of crystallized metal in a pool