Physical and Mathematical Model of the System "Power Source - Arc" for MIG/MAG Welding
A physical and mathematical model of the system «Power Source - Arc» for MIG/MAG welding has been developed. The model is based on a set of differential equations and takes into account as well the conditions of the droplets transfer through the arc gap as the interaction of the arc parameters with those of the power source. The model equations are numerically solved by a computer program that allows for modeling the most important phenomena of MIG/MAG welding. The program helps engineers specify technological requirements during the designing stage for the manual, mechanized and automatic welding processes.