COMPOSITE WELDING METHOD AND COMPOSITE WELDING DEVICE

摘要

Provided is a composite welding method in which while a laser beam is being applied to a weld position of an object to be welded, a first wire is fed to the weld position and arc welding is performed on the object to be welded simultaneously, wherein at least one second wire is supplied to a molten pool formed by the laser beam and the arc welding, thereby enabling an increase in the amount of welding without increasing the arc current.