DISPOSITIVO DE SOLDADURA POR ARCO ELECTRICO DE PIEZAS META- LICAS.

摘要

An arc welding process and apparatus utilising an electrode and a counter-electrode between which a column of plasma forms. A first unidirectional current source is located between the electrode and the counter-electrode, and a second unidirectional current source is located between the counter-electrode and the member to be welded. These two sources simultaneously pass the two unidirectional currents.