Studying the interconnection between the heat transfer characteristics and thermal welding cycles during MAG welding

The article is devoted to the fast heat transfer processes taking place during permanent joint formation by MAG welding. It is shown that the conditions of heating and crystallization of molten metal accompanying the permanent joint formation are extensively affected by the welding method, quantitative characteristics of mass transfer and energy parameters of the welding regime. The above mentioned combination of technological indicators is directly bound with the thermal welding cycles that linearly depend on the rate of the energy input required for the permanent joint formation.