Patent ID: 8993925
Filing Date: 2015-03-31
Classification: B23K

Abstract:
1. An arc welding method comprising: a setting step for setting a set welding current; a determining step for determining a welding wire feeding rate having an average feeding rate, a frequency and a velocity amplitude, and a welding step for welding with a short-circuit state and an arc generation state repeated periodically by periodically changing wire feeding of a consumable welding wire between forward feeding and reverse feeding at the welding wire feeding rate, electric power being applied to the consumable welding wire to melt the consumable welding wire during the welding, wherein in the determining step, which occurs prior to the welding step, the average feeding rate is determined as a predetermined average feeding rate based on the set welding current, in the determining step, which occurs prior to the welding step, the frequency is determined as a predetermined frequency based on the set welding current, and in the welding step, welding is performed at the welding wire feeding rate including the predetermined average feeding rate and the predetermined frequency.