Peculiarities of metal penetration in laser-arc welding using YAG-laser

摘要

The simplified model of heat processes proceeding in metal at the combined laser-arc welding under heat-conductive conditions of melting has been suggested. This model makes it possible to take into account the effect of constriction of the arc anode region as a result of laser evaporation of metal. Experimental and numerical investigations of peculiarities of penetration of stainless steel samples at a combined welding using YAG-laser and argon arc with a non-consumable electrode were made. The results of calculations are in a good correlation with experimental data.