INTEGRATED RESISTANCE WELDING OF FUNCTIONAL ELEMENT AND AUXILIARY ELEMENT

摘要

The invention relates to a method for joining at least one sandwich sheet to at least one functional element made of metal, wherein the at least one sandwich sheet has two metallic outer layers and a thermoplastic layer arranged between the metallic outer layers, wherein at least the region to be joined of the at least one sandwich sheet is heated in such a manner that the thermoplastic layer softens, the plastic layer is pushed out of the joining region by the outer layers being pressed together, and the outer layers of the at least one sandwich sheet are joined, in particular welded, to the functional element by an electric current flow between a first and a second electrode.

主权项

1. A method for joining at least one sandwich sheet to at least one functional element made of metal, wherein the at least one sandwich sheet has two metallic outer layers and a thermoplastic layer disposed between the metallic outer layers, the method comprising:
joining the at least one functional element to a first auxiliary element; heating at least the region to be joined of the at least one sandwich sheet such that the thermoplastic layer softens; pressing the metallic outer layers together at a joining region so as to push the plastic layer disposed there between out of the joining region and bring each outer metallic layer in contact with each other; and in the same operation as the joining step, welding the outer metallic layers of the at least one sandwich sheet to the joined functional and first auxiliary elements, by application of an electric current flow from a first to a second electrode, the current flow passing through each of the metallic outer layers and the joined functional and first auxiliary elements.