Method and device for stretching and forming a foil blank and product produced herewith

Abstract

The invention relates to a method and a device for stretching and forming a foil blank as well as to a product, which is produced by means of this method.

1 . A method for stretching and forming a foil blank, wherein a foil blank is elongated in at least one direction and slides along in at least one direction during the deformation. 
     
     
         2 . The method according to  claim 1 , wherein the sliding along is controlled. 
     
     
         3 . The method according to  claim 1 , wherein the clamping force is regulated. 
     
     
         4 . The method according to  claim 1 , wherein the clamping speed is regulated. 
     
     
         5 . The method according to  claim 1 , wherein a forming aid is used during the deformation and/or in a downstream step. 
     
     
         6 . A device for stretching and forming a foil blank, for carrying out a method according to  claim 1 , comprising a clamping frame and a holding element, wherein the holding element is slidingly supported in the foil plane, so that it slides along in response to the forming. 
     
     
         7 . The device according to  claim 6 , wherein the clamping frame can be displaced in x and/or y and/or z direction. 
     
     
         8 . The device according to  claim 6 , wherein the clamping frame is arranged so as to be pivotable out of the foil transport plane about a center of gravity. 
     
     
         9 . The device according to  claim 6 , wherein the clamping frame is supported so as to be rotatable about a fixed point. 
     
     
         10 . The device according to  claim 6 , wherein the clamping frame encompasses a clamping device. 
     
     
         11 . The device according to  claim 6 , wherein the clamping device can be moved in x and/or y and/or z direction. 
     
     
         12 . The device according to  claim 6 , wherein the clamping device is supported so as to be rotatable about a fixed point. 
     
     
         13 . The device according to  claim 6 , wherein the device encompasses a forming aid. 
     
     
         14 . A product, which is produced by means of a method according to  claim 1  and/or by means of a device for stretching and forming a foil blank.