Based on the analysis of the literature data, the influence of the composition of the shielding gas, the voltage across the arc, the current strength on the power (gas-dynamic) effect of an arc discharge with a non-consumable electrode, the thickness of the liquid layer of the molten metal, and the depth of the crater of the weld pool are shown.
The results of numerical simulation of the ion-optical scheme of ion transport at atmospheric pressure are presented. The possibility of efficient transport of ions in the system under consideration with an increase in the local curvature of the equipotential lines of the electrostatic field in the vicinity of the nozzle by shaping (changing the shape) of this electrode is shown. Shaping the nozzle allows to increase the value of Iсопло by approximately 1.6 times. Taking into account the gas-dynamic effect on the transport of the ion beam through the nozzle makes it possible to obtain the values of the transmission by 70% higher.
GAS-DYNAMIC EFFECT OF THE ARC ON THE METAL OF THE WELD POOL DURING NON-CONSUMABLE ELECTRODE WELDING (REWIEW)