Resistance welding method
OwnerErdogan Karakasinventor
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Abstract
In a resistance welding method using direct current in which a direct voltage that is applied to the welding electrodes is commutated. According to the invention, the polarity of the direct voltage applied to the electrodes is selected before or after each welding process according to at least one parameter detected during the welding process. Preferably, the selection of polarity of the direct voltage of the welding electrodes is controlled by control means before or after each welding operation. The inventive method prevents the welding electrodes from being worn on one side, which, in turn, increases their serviceable life or endurance.
Claims25
Resistance welding method, comprising:
- a) using direct current in which a direct voltage that is applied to welding electrodes is commutated;
- and
- b) the polarity of the direct voltage of the welding electrodes is selected before each welding of a weld according to at least one parameter detected during the welding of a weld.
Resistance welding method, comprising:
- a) using direct current in which a direct voltage that is applied to welding electrodes is commutated;
- and
- b) the polarity of the direct voltage of the welding electrodes is selected after each welding of a weld according to at least one parameter detected during the welding of a weld.
Resistance welding method, comprising:
- a) using direct current in which a direct voltage that is applied to welding electrodes is commutated;
- and
- b) the polarity of the direct voltage of the welding electrodes is selected after each welding of a weld according to at least one parameter detected after the welding of a weld.
Dependencies are inferred from the claim text.