1987 Volume 5 Issue 4 Pages 477-482
Multi-electrode arc welding method is applied to the high speed one-side welding of 1mm thick SUS 304 sheets.
Under welding speed lower than 6.5m/min, fine one-side welding joints are obtained by setting the final preheating electrode close to the penetration bead forming electrode so that the arc blow occurs by magnetic interaction between double electrodes. But, stable penetration bead can not be formed by the same condition under higher welding speed. So, in the case of very high speed one-side welding, by setting the distance between both electrodes about 50mm and forming the final preheating bead to gouging type, favorable welding results are established.
