Gas environment effect on main parameters of metal drop transition during consumable electrode welding with short-circuit current

Dependencies of droplets transition into the bath on welding current pulse amplitude, beginning of its effect and time of its action under different gaseous atmosphere of arc gap are obtained on the basis of calculated data. Current critical values, excluding the droplets sition into batl at the moment of establishing the droplet-bath contact as well as by the transition itself are determined and compared with the data obtained by other authors. Velocity values for the droplet entry into the bath depending on the current and time of its action are presented. 4 refs., 4 figs., 2 tabs