| 摘要 |
PROBLEM TO BE SOLVED: To provide an arc finish control method in two-electrode arc welding by which a satisfactory weld bead can be formed. SOLUTION: The arc finishing control method is used in two-electrode arc welding. The two-electrode arc welding generates a consumable electrode arc 6a and a non-consumable arc 6b by using a welding torch B arranged at the inside of a shielding gas nozzle for discharging a shielding gas and provided with a consumable electrode W and a non-consumable electrode, thereby performs welding. In the arc finishing control method, after regular welding treatment where the welding torch B is moved to the direction of a welding order while generating the consumable electrode arc 6a and the non-consumable electrode arc 6b, a first welding finishing treatment performed in such a manner that the consumable electrode feed rate Fw for feeding the consumable electrode W is made lower than that in the regular welding treatment and a second welding finishing treatment performed in such a manner that the feed of the consumable electrode W and the consumable electrode arc 6a are stopped are carried out. COPYRIGHT: (C)2010,JPO&INPIT
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