ARC WELD METHOD

Japanese Patent JP2016052678

A

PROBLEM TO BE SOLVED: To make weld penetration deep at spray transition welding.SOLUTION: A first output voltage E1 and a first weld current Iw1 are outputted in a first period T1, a second output voltage E2 and a second weld current Iw2 are outputted in a second period T2, a third output voltage E3 and a third weld current Iw3 are outputted in a third period T3, and when 0