METHOD OF MICROPLASMA WELDING OF LIGHT ALLOYS Russian patent published in 1994 - IPC

FIELD: welding of non-ferrous metals. SUBSTANCE: method comprises steps of placing parts of light-weight alloys into a container, having aqueous solution of electrolyte with concentration of potassium hydroxide 0.001-0.005 g/l at temperature of the solution, equal to 20 C, as a flux; carrying out the process in a microplasma mode at asymmetric pulsating current with density 5-10 5...20 A/дм², voltage 400-600 V, frequency 50 Hz over 60-200 min. EFFECT: simplified welding process due to elimination of preliminary cleaning and etching of parts, welding of complex configuration parts. 2 cl, 1 tbl