| 摘要 |
PROBLEM TO BE SOLVED: To provide a resistance welding device which joints insulation cover welding materials each other by electric heating and pressing, and to provide a method for the same. SOLUTION: The resistance welding device comprises a welding power source supplying welding energy, a lower electrode connected to one electrode of the welding power source, an upper electrode connected to the other electrode of the welding power source, held so as to freely move in vertical direction toward the lower electrode, and pressing the first welding material and the second welding material so that they press each other, a driving part making the upper electrode mode, and a control device controlling the value of the current flowing from the welding power source to the upper electrode and the lower electrode. The control device controls the current of the welding power source, and the second welding material held by the first welding material is peeled by electrically heating it with the current of the first prescribed current value, and afterwards, the first welding material and the second welding material are jointed with each other by electrically heating them with the current of the second prescribed current value.
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