Method of manufacturing press mold for mass-producing hot stamping cold trim and press mold for mass-producing hot stamping cold trim manufactured using the same

Abstract

A method of manufacturing a press mold for mass-producing a hot stamping cold trim includes bonding first and second steel bodies made of different materials to form a single body mold material, polishing a bottom surface and one edge surface of the mold material with processing margins, processing edge surfaces other than the one edge surface on which a bonding part is positioned, processing reference holes for guide pins and a reference surface, forming bolt holes penetrating through the reference surface and the bottom surface, processing a surface of the first steel body in a predetermined shape, heat-treating the mold material, and polishing the bottom surface and the one edge surface having the processing margins at desired accurate dimensions and wire-processing the one edge surface with the processing margin to configure a front end part having the desired accurate dimension.

1 - 9 . (canceled) 
     
     
         10 . A press mold for mass-producing a hot stamping cold trim, comprising:
 a single body mold material formed by bonding first and second steel bodies to each other;   reference holes formed at both sides of the mold material;   a reference surface which is one surface of the first steel body;   a bottom surface which is a surface corresponding to the reference surface;   a plurality of bolt holes formed to penetrate through the reference surface and the bottom surface; and   a mounting groove part formed at one side of one or each of the plurality of the bolt holes and in the first steel body.   
     
     
         11 . The press mold according to  claim 10 , wherein the first steel body is made of a material comprising a superhard material, and the second steel body is made of a material comprising a hot alloy tool steel. 
     
     
         12 . The press mold according to  claim 10 , wherein the reference surface is formed in a multi-stage shape based on the reference holes. 
     
     
         13 . The press mold according to  claim 10 , wherein one or each of the reference holes is processed so that the first steel body is provided with a step.