Flanging Tool

Abstract

A flanging tool has a working face which is designed to deform a flange of a metal sheet. The flanging tool is moved along the flange while the working face is in touching contact with the flange, wherein a spatial extent of the flanging tool in a direction perpendicular to the working face is within the range of 1 mm to 10 mm, and preferably 4 mm.

What is claimed is: 
     
         1 . A flanging tool, comprising:
 a working face, which is configured to deform a flange of a metal sheet when the flanging tool is moved along the flange while the working face is in touching contact with the flange,   wherein a spatial extent of the flanging tool in a direction perpendicular to the working face is within the range of 1 mm to 10 mm.   
     
     
         2 . The flanging tool according to  claim 1 , wherein the spatial extent of the flanging tool in the direction perpendicular to the working face is 4 mm. 
     
     
         3 . The flanging tool according to  claim 1 , wherein
 a length of the flanging tool extends in an advancing direction parallel to the working face, the length being within the range of 20 mm to 140 mm.   
     
     
         4 . The flanging tool according to  claim 1 , wherein
 a width of the working face of the flanging tool extends in a direction parallel to the working face, the width being within the range of 5 mm to 30 mm.   
     
     
         5 . The flanging tool according to  claim 1 , further comprising:
 a friction-minimizing and/or adhesion-minimizing coating provided on the working face.   
     
     
         6 . The flanging tool according to  claim 5 , wherein the coating comprises tetrahedral amorphous carbon. 
     
     
         7 . The flanging tool according to  claim 1 , wherein the working face is configured as a control screw face. 
     
     
         8 . The flanging tool according to  claim 1 , wherein the working face is twisted by an angle within the range of 1 to 179 degrees. 
     
     
         9 . The flanging tool according to  claim 1 , wherein
 two contradirectional working faces are provided, which are arranged one behind the other in a longitudinal direction.