METHOD AND DEVICE FOR THE OPTIMIZED RESISTANCE WELDING OF METAL SHEETS

摘要

The invention relates to a method for the resistance welding of a metal sheet to a further metallic component, wherein the metal sheet is welded to the further component by a flow of electric current for welding in a circuit comprising the metal sheet, the further component, a first welding electrode and a second welding electrode, wherein the first welding electrode is in contact with the metal sheet and the second welding electrode, lying opposite the first welding electrode, is in contact with the further component on the side of the further component that is facing away from the metal sheet, wherein, in a first phase, the metal sheet is subjected at least for a time to a first force at least by the first welding electrode and, in a second phase, the metal sheet is subjected at least for a time to a second force at least by the first welding electrode during the flow of electric current for welding, the second force being lower than the first force.

主权项

1. A method for resistance welding a metal sheet to at least one metallic component, comprising:
positioning the at least one metallic component into contact with a first surface of the metal sheet; contacting a second opposing outer surface of the metal sheet with a first welding electrode, which second surface faces away from the at least one metallic component; placing a second welding electrode, positioned opposite the first electrode, in contact with the metallic component on a side thereof facing away from the metal sheet; in a first phase, pressing at least the first welding electrode onto the second outer surface of the metal sheet with a first force for a first predetermined period of time; in a second phase,
welding the metal sheet to the metallic component by application of a welding electric current flow through each of the first electrode, the metal sheet, the metallic component, and the second electrode;during the flow of the electric welding current, pressing at least the first welding electrode onto the second outer surface of the metal sheet with a second force for a second predetermined period of time, the magnitude of the second force being smaller than the magnitude of the first force.