Patent ID: 9102100
Filing Date: 2015-08-11
Classification: B29C,B29K,B29L,B31B

Abstract:
1. An apparatus for welding a joining region of a foil with a three-dimensional connecting part, the apparatus comprising a welding device comprising: a transport device configured to hold an edge of the foil; and an extension device comprising a deforming tool for extending the foil inside and/or outside of the joining region by lengthening the foil material through mechanical deformation while the edge of the foil is held by the transport device and prior to pulling the foil around said three-dimensional connecting part, to provide additional length in a deformed region of the foil without requiring an additional quantity of the foil, wherein the deformed region provides an additional length necessary for welding the foil to the three-dimensional connecting part when the foil is pulled around said three-dimensional connecting part by the welding tool and the joining region is welded to said three-dimensional part.