Method and Device for Producing Formed, in Particular Flanged, Sheet Metal Components

Abstract

A method for producing a formed, flanged component is disclosed. The method includes the steps of: preforming a workpiece a preformed component; and calibrating the preformed component to a substantially completely formed component. The method strengthens the reinforcement in the component and widens the spectrum of application to components in particular, to tub-shaped components. The calibrating of the preformed component to the completely formed component includes stretching the preformed component at least in portions. The present disclosure relates further to a device for producing a formed, flanged component.

1 . A method for producing a formed, flanged component, the method comprising the following steps:
 preforming a workpiece a preformed component; and   calibrating the preformed component to a substantially completely formed component,   wherein the calibrating of the preformed component to the substantially completely formed component comprises at stretching the preformed component at least in portions.   
     
     
         2 . The method as claimed in  claim 1 , wherein a region of the preformed component is configured so as to have a material deficiency in relation to the completely formed component. 
     
     
         3 . The method as claimed in  claim 1 , wherein a region of the preformed component in terms of a geometric size, is dimensioned so as to be smaller in comparison to the substantially completely formed component. 
     
     
         4 . The method as claimed in  claim 1 , wherein material elevations are permitted while preforming the workpiece to the preformed component. 
     
     
         5 . The method as claimed in  claim 1 , wherein the material elevations are permitted by at least one of providing a gap and a blank-holder spacing in the region of the material elevation. 
     
     
         6 . The method as claimed in  claim 4 , wherein the material elevations are incorporated in a targeted manner by way of at least one preforming tool. 
     
     
         7 . The method as claimed in  claim 4 , wherein the material elevations are substantially free of material thickenings. 
     
     
         8 . The method as claimed in  claim 4 , wherein the material elevations are ironed by stretching the preformed component. 
     
     
         9 . The method as claimed in  claim 1 , wherein a region of the preformed component, in terms of a geometric size, is dimensioned so as to be larger as compared to the substantially completely formed component. 
     
     
         10 . The method as claimed in  claim 1 , wherein the calibrating of the preformed component to the completely formed component comprises compressing the preformed component at least in regions. 
     
     
         11 . The method as claimed in  claim 1 , wherein the preformed component by way of the calibrating is subjected to a plastic flow procedure in one of an entirety of the component and only in portions of the component. 
     
     
         12 . A device for producing a formed, flanged component, comprising:
 a preforming tool for preforming a workpiece to a preformed component; and   a calibrating tool for calibrating the preformed component to a substantially completely formed component,   wherein the preforming tool and the calibrating tool are configured in such a manner that the calibrating of the preformed component to the substantially completely formed component comprises stretching the preformed component at least in regions.   
     
     
         13 . The device as claimed in  claim 12 , wherein the preforming tool, while preforming the workpiece to the preformed component, is configured for permitting material elevations by use of a gap that remains in at least one of a closed stated and a blank holder spacing of the preforming tool. 
     
     
         14 . The device as claimed in  claim 13 , wherein the preforming tool comprises a preforming die and a preforming swage, and the gap defined at least between the preforming die and the preforming swage. 
     
     
         15 . The device as claimed in  claim 12 , wherein the calibrating tool comprises a calibrating die and a calibrating swage, wherein the calibrating die comprises a first calibrating die portion and a second calibrating die portion which is movable relative to said first calibrating die portion and which forms the calibrating die base. 
     
     
         16 . The method as claimed in  claim 2 , wherein the region is a side-plate region. 
     
     
         17 . The method as claimed in  claim 3 , wherein the region is a side-plate region. 
     
     
         18 . The method as claimed in  claim 9 , wherein the region is one of a side-plate region and a flanged region. 
     
     
         19 . The device as claimed in  claim 15 , wherein the calibrating swage comprises a first calibrating swage portion and a second calibrating swage portion which is movable relative to said first calibrating swage portion and which forms the calibrating swage base.