| 摘要 |
PROBLEM TO BE SOLVED: To perform satisfactory welding and facilitate setting of welding parameters in a composite welding method and a composite welding apparatus which perform laser welding and arc welding under control. SOLUTION: The composite welding method and composite welding apparatus work as follows: while irradiating a welding position of an object to be welded with laser beams, feeding a first wire to the welding position and simultaneously performing arc welding between the first wire and the object, and feeding a second wire to a molten pool formed by the laser beam and the arc welding. A computing means calculates laser heat input using the laser output and the welding speed, calculates arc heat input by using the arc current, arc voltage and a welding rate, and outputs a welding permission signal only when the laser heat input and the arc heat input satisfy a specific relationship. COPYRIGHT: (C)2013,JPO&INPIT |
