Method and APPARATUS FOR Consumable-Electrode Shielding-Gas Pulsed-Arc Welding

The method and apparatus for pulsed-arc welding are presented. Using this method makes it possible to dose the energy required for melting each drop of the metal electrode beginning from the moment of drop separation. The apparatus that includes a sensor for detecting a drop separation captures a moment of drop separation according to a surge of the voltage across the arc gap. Dosing of energy used to melt each drop provides the same size of transferred electrode-metal droplets, thus increasing the process stability and ensuring identical initial conditions for the electrode-metal transfer, and ultimately improves the weld formation.

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