| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pulse arc welding method by irradiation with a pulse laser simultaneously using pulse arc welding and a pulse laser, by which while the welding current of the pulse arc welding and the output value Pw of the pulse laser are made synchronous, the average output value Pd of the pulse laser can be kept constant. <P>SOLUTION: The pulse arc welding method is disclosed for performing welding while irradiating an arc weld zone with laser beam by using: consumable electrode pulse arc welding in which peak current and base current are alternately energized; and a pulse laser which irradiates the weld zone with a laser beam of a high output value HPs during high output started synchronously with the peak current and a laser beam of a low output value LPs during the period other than high output, wherein the average output value Pd of the pulse laser is detected, and the high output value HPs is changed so that the average output value Pd is made almost equal to the predetermined average output set value Pas. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
