Effects of weld pool surface deformation on behavior characters of welding arc

This paper studied the effects of weld pool surface deformation on welding arc behavior characters basing on unified arc-pool mathematical model. The calculated results of current density and heat flux on flat weld pool surface using model established in this paper are agreed with experiment. But current density and heat flux on deformed weld pool surface are not similar Gauss distribution. The wordk in this paper supplied basis for the study on welding arc and weld pool.