Method and Tool for Producing Sheet Metal Components

Abstract

A method for producing sheet metal components is disclosed. The method includes preshaping a workpiece to form a preshaped component. Excess material is introduced into the preshaped component at least in regions. The method includes, calibrating the preshaped component to form an at least partially finally shaped component using the excess material. The preshaped component is compressed at least in sections. The method achieves high dimensional accuracy, rigidity and/or hardening of components. According to one aspect of the method, different regions of the preshaped component are calibrated in a time-staggered manner, or one or more locally thickened region are produced during the calibration.

1 . A method for producing sheet metal components, the method comprising:
 preshaping a workpiece to form a preshaped component, wherein material which is excess at least in regions is introduced into the preshaped component; and   calibrating the preshaped component to form an at least partially finally shaped component using the excess material,   wherein the preshaped component compressed at least in sections, and   wherein different regions of the preshaped component are calibrated in a time-staggered manner.   
     
     
         2 . The method as claimed in  claim 1 , wherein the preshaped component is a component in the shape of a half shell. 
     
     
         3 . The method as claimed in  claim 1 , wherein the preshaped component is a flangeless component at least in regions or comprises a flange at least in regions. 
     
     
         4 . The method as claimed in  claim 1 , wherein the preshaped component is calibrated at least in regions without trimming to form the finally shaped component. 
     
     
         5 . The method as claimed in  claim 1 , wherein the calibration to form the finally shaped component takes place in at least one tool. 
     
     
         6 . The method as claimed in  claim 1 , wherein preshaped component transport takes place between the calibration of different regions of the preshaped component to form the finally shaped component. 
     
     
         7 . The method as claimed in  claim 1 , wherein the different regions which are calibrated in a time-staggered manner are component portions arranged along the preshaped component. 
     
     
         8 . The method as claimed in  claim 1 , wherein, during the calibration of a region, at least some of the remaining regions are secured against yielding. 
     
     
         9 . A tool for producing sheet metal components comprising:
 at least one preshaping tool for preshaping a workpiece to form a preshaped component, wherein material which is excess at least in regions is introduced into the preshaped component; and   at least one calibrating tool for calibrating the preshaped component to form an at least partially finally shaped component using the excess material,   wherein the preshaped component is compressed at least in sections, and   wherein the tool is configured to calibrate different regions of the preshaped component in a time-staggered manner.   
     
     
         10 . The tool as claimed in  claim 9 . wherein the at least one calibration tool comprises a plurality of tool parts, and the tool is configured in such a manner that the calibration tool parts arc partially relieved of load during the calibration, and
 wherein one of different regions of the preshaped component are calibrated in a time-staggered manner and only one or more portions of the preshaped component arc calibrated.   
     
     
         11 . The tool as claimed in  claim 9 , wherein the tool further comprises a securing device to secure at least some of remaining regions against yielding during the calibration. 
     
     
         12 . A method for producing sheet metal components, the method comprising:
 preshaping a workpiece to form a preshaped component, wherein material which is excess at least in regions is introduced into the preshaped component; and   calibrating the preshaped component to form an at least partially finally shaped component using the excess material,   wherein the preshaped component is compressed at least in sections, and   wherein one or more locally thickened regions are produced during the calibration.   
     
     
         13 . The method as claimed in  claim 12 , wherein the one or more locally thickened regions extend along the finally shaped component and are produced during the calibration. 
     
     
         14 . The method as claimed in  claim 12 , wherein the excess material introduced into the preshaped component is adapted to produce the one or more locally thickened regions. 
     
     
         15 . The method as claimed in  claim 12 , wherein the one or more locally thickened regions are hardened by the calibration. 
     
     
         16 . The method as claimed in  claim 12 , wherein more of the excess material is introduced into the preshaped component than is required for the calibration. 
     
     
         17 . A tool for producing sheet metal components comprising:
 at least one preshaping tool for preshaping a workpiece to form a preshaped component, wherein material which is excess at least in regions is introduced into the preshaped component; and   at least one calibrating tool for calibrating the preshaped component to form an at least partially finally shaped component using the excess material,   wherein the preshaped component is compressed at least in sections, and   wherein the tool is configured to produce one or more locally thickened regions during the calibration.   
     
     
         18 . The method as claimed in  claim 1 , wherein the preshaped component is U-shaped in cross-section. 
     
     
         19 . The method as claimed in  claim 1 , wherein the preshaped component is hat-shaped.