Method for producing a press-quenched component, and press mold

Abstract

The present disclosure relates to a method for producing a press-quenched component from a hot-formable steel sheet blank, in which, in a first step, the blank is heated to a temperature of approximately 900° C. and, in a second step, the blank is arranged in a press mold and formed, wherein a drawing bead is created on the blank and the region of the press mold in which the drawing bead is arranged is heated prior to introduction of the blank into the press mold. The present disclosure also relates to a press mold for the above method.

What is claimed is: 
     
         1 . A method for producing a press-quenched component from a hot-formable steel sheet blank, the method comprising:
 heating the blank to a temperature of about 900° C.;   arranging the blank in a press mold; and   forming the blank,   wherein a drawing bead is created on the blank and a region of the press mold where the drawing bead is arranged is heated prior to introduction of the blank into the press mold.   
     
     
         2 . The method as claimed in  claim 1 , wherein the heated region in which the drawing bead is arranged is heated to a temperature of at least 400° C. 
     
     
         3 . The method as claimed in  claim 1 , wherein a temperature of the heated region in which the drawing bead is arranged is controlled such that it does not drop below 400° C. 
     
     
         4 . The method as claimed in  claim 1 , wherein a temperature of the heated region in which the drawing bead is arranged is set according to a geometry of the component. 
     
     
         5 . The method as claimed in  claim 1 , wherein boron steel is used to make the blank. 
     
     
         6 . The method as claimed in  claim 1 , wherein the blank is at least one of Tailor Welded Blanks (TWB), Tailor Rolled Blanks (TRB) and Tailor Tempered Blanks (TTB). 
     
     
         7 . The method as claimed in  claim 1 , wherein the press mold is divided into at least two segments. 
     
     
         8 . The method as claimed in  claim 7 , wherein at least one segment of the at least two segments is heated. 
     
     
         9 . The method as claimed in  claim 8 , wherein thermal insulation is arranged between the heated segment and the other segment. 
     
     
         10 . The method as claimed in  claim 1 , wherein the press mold includes at least three segments. 
     
     
         11 . The method as claimed in  claim 10 , wherein two of the at least three segments is heated. 
     
     
         12 . The method as claimed in  claim 11 , wherein the drawing beads are arranged in the two heated segments. 
     
     
         13 . The method as claimed in  claim 11 , wherein thermal insulation is arranged between the heated segments and the non-heated segment. 
     
     
         14 . A component manufactured according to the method of  claim 1 . 
     
     
         15 . A press mold comprising:
 at least two segments;   a die defining at least two recesses and arranged in the at least two segments; and   punches,   wherein a blank having at least one drawing bead is arranged between the die and the punches and each recess receives a punch when the die and punches are pressed together.   
     
     
         16 . The press mold as claimed in  claim 15 , wherein at least one of the at least two segments is heated and the at least one drawing bead is arranged in the heated segment. 
     
     
         17 . The press mold as claimed in  claim 16 , wherein a temperature of the heated segment is at least 400° C. 
     
     
         18 . The press mold as claimed in  claim 15 , wherein the number of segments is three and two of the three segments is heated. 
     
     
         19 . The press mold as claimed in  claim 18  further comprising thermal insulation arranged between the two heated segments and non-heated segment. 
     
     
         20 . The press mold as claimed in  claim 18 , wherein the drawing beads are arranged in the heated segments.