AUTOMATIC TREATMENT AFTER GENERATION OF TEMPORARY STOP OWING TO ABNORMAL ARC CURRENT

摘要

PURPOSE:To continue welding in shift welding under automatic control of the position of a welding torch by stopping temporarily the welding when the welding arc current attains a permissible value or above and retreating automatically the torch in the axial direction thereof then restarting automatically the welding. CONSTITUTION:Welding is temporarily stopped and a welding torch is retreated by a specified distance in the axial direction thereof and after the abnormal state of the weld zone is averted, the automatic controlled welding is resumed when the welding arc current attains a permissible value or above in controlled welding in which the top end position and direction of the torch are set and the welding in the advancing direction is automatically controlled at the X-Y-Z axes. The welding is temporarily stopped and the operator's treatment is waited when the arc current attains the permissible current value or below.