MANUFACTURING METHOD FOR SPOT-WELDED JOINT AND SPOT-WELDING MACHINE

• Main Authors: TAIYAMA MASANORI, OKADA TORU
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

To provide a manufacturing method for a spot welded joint that can suppress occurrence of a failure caused by a coated film at a position where the coated film contacts an electrode.SOLUTION: The manufacturing method for a spot welded joint includes: an electrode friction step of causing friction between steel plates 1A and 1B by pressing two electrodes 100A and 100B against two or more piled-up steel plates 1A and 1B from both directions and driving at least one of the electrodes 100A and 100B; and an energization step of energizing the two electrodes 100A and 100B to weld the piled-up steel plates 1A and 1B to each other, in at least one of a state where the electrodes 100A and 100B are driven and a state where the driving is stopped.SELECTED DRAWING: Figure 1 【課題】被膜と電極とが接触する箇所における被膜に由来する欠陥の発生を抑制することができるスポット溶接継手の製造方法の提供。【解決手段】２つ以上積み重ねた鋼板１Ａ、１Ｂに対し、両方向から２つの電極１００Ａ、１００Ｂを押し当て、少なくとも一方の電極１００Ａ、１００Ｂを駆動させることで鋼板１Ａ、１Ｂとの間に摩擦を生じさせる電極摩擦工程と、電極１００Ａ、１００Ｂを駆動させた状態及び駆動を停止した状態の少なくとも一方の状態で、２つの電極１００Ａ、１００Ｂに通電を行って積み重ねた鋼板１Ａ、１Ｂ同士を溶接する通電工程と、を有するスポット溶接継手の製造方法。【選択図】図１