ARC welding apparatus, ARC welding method, ARC welding system, and welded article

摘要

An arc welding apparatus includes: a detection unit (41) configured to detect whether it is in a short state or an arc state between a consumable electrode (14) and a welded article (W); a feed adjustment unit (42) configured to apply a forward feed for feeding the consumable electrode when the arc state is detected and apply a reverse feed for feeding the consumable electrode when the short state is detected; a determination unit (43) configured to determine whether or not a predetermined period has elapsed after the detection unit has detected the short state; and an instruction unit (44) configured to instruct the feed adjustment unit to continue the reverse feed even when the arc state is detected, until the determination unit determines that the predetermined period has elapsed.