To provide a one side welding method capable of stably obtaining a sound joint between metal plates, when the laser welding of the metal plates coated by coating materials having a melting point lower than that of a base metal is performed by a method performing the laser welding after an indirect spot welding step.
A one side welding method of the present invention includes: a step of pressing a welding electrode having a tip end of a curved shape and a curvature radius of the curved shape of 30-100 mm to a metal plate 11 positioned on the one surface side of a member with respect to the member 1 obtained by superposing two or more metal plates while pressing thereof, attaching a feeding terminal to the other surface side of the member, and energizing between the welding electrode and the feeding terminal to perform indirect spot welding of the member; and a step of performing the laser welding of the member by applying a laser beam L from the one surface side of the member 1 to an indirect spot welded part 13A of the member formed by the indirect spot welding or in the periphery thereof.
| JPS62263887 | LASER BEAM WELDING DEVICE FOR STEEL STRIP |
| JP3246798 | EQUIPMENT AND METHOD FOR WELDING SHEETS |
IKEDA TOMOMASA
| JP2010264503A | 2010-11-25 | |||
| JP2010194609A | 2010-09-09 | |||
| JP2012035278A | 2012-02-23 |
Keisuke Kawahara
Kengo Yoshida
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