To provide a spot welding method using a spot welding gun performable of spot welding in a condition in which fixed pressurizing force is applied constantly to a welding target workpiece, and enhancing the stability of welding quality.
When an operation parameter of the spot welding gun 16 is instructed in a condition without degradation due to secular change of a sliding mechanical part of the spot welding gun 16 with a pair of electrode tips 14a, 14b, a reference tip interval of the pair of the electrode tips 14a, 14b producing a favorable welding condition at a spot welding place of the welding target workpiece 11 is obtained. Moreover, when a prescribed spot welding place of the welding target workpiece 11 is actually welded, a tip interval of the pair of the electrode tips 14a, 14b is made equal to the reference tip interval by position control, and then, the spot welding place of the welding target workpiece 11 is held between the pair of the electrode tips 14a, 14b, and prescribed pressurizing force is added to the welding target workpiece 11 for welding.
AOKI TOSHIMICHI
| JPH10128552A | 1998-05-19 | |||
| JPH1158024A | 1999-03-02 | |||
| JPH06155036A | 1994-06-03 |
Tetsuro Shimada
Shinji Mitsuhashi
Hirose Shigeki
Kazuo Maejima
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