FIELD: gas shield fusion on variable profile thin-wall parts. SUBSTANCE: method comprises steps of setting electric arc gap between electrode and welded-on part equal to 2-8 diameters of electrode; interrupting high frequency discharge after exciting electric arc. After extinguishing first arc, electric arc gap is ionized and next electric arc is excited without high-frequency discharge. Number of electric arcs excited without high-frequency discharge corresponds to number of electric current pulses of pulse train. Drop of electrode metal is formed due to melting electrode at multiple exciting of electric arc. EFFECT: lowered thermic influence upon base metal due to preventing accumulation of melt metal bath. 5 cl, 9 dwg
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