| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spot welding method that can suppress a welding failure caused by a disturbance like a gap, facing deviation, etc. <P>SOLUTION: In the spot welding method by which a workpiece W is welded by nipping the workpiece W formed by joining steel plates W1 and W2 with a pair of electrode tips 21 and 22 and pressurizing the workpiece W and by flowing electric current between the electrode tips 21 and 22 under the condition of a predetermined or more pressure maintained, the pair of the electrode tips 21 and 22 are vibrated at least in the pressurization direction after the workpiece W is nipped by the pair of the electrode tips 21 and 22 to start pressurization until the pressurization power reaches a predetermined one and is stabilized. <P>COPYRIGHT: (C)2013,JPO&INPIT |
