Impact reinforcement component and method for manufacturing same

Abstract

An impact reinforcement component according to the present invention comprises a component body having side walls formed on both longitudinal sides thereof and a top plate connecting the upper ends of the two side walls; and end flanges formed by being bent at respective longitudinal ends of the component body, wherein the component body, formed by repeated roll stamping in succession through which material is rotatingly pressed multiple times by means of stamping rolls, comprises: a body portion having beads formed along the top plate in the longitudinal direction; and boundary portions which are integrated with the body portion and respective end flanges, being the connecting portions therebetween, and have a flat top plate.

1 . An impact reinforcement component, comprising:
 a component body having side walls on both sides thereof in a longitudinal direction and an upper plate connecting upper ends of the side walls on both sides; and   an end flange formed by being bent at each of both ends of the component body in the longitudinal direction,   wherein the component body is formed by continuous repetition of roll stamping in which a stamping roll rotates multiple times and presses a material,   wherein the component body includes   a body portion having a plurality of beads formed on an upper plate in a longitudinal direction; and   a boundary portion which is integrated with the body portion and the end flange, as a connecting portion between the body portion and the end flange, and has a flat upper plate.   
     
     
         2 . The impact reinforcement component of  claim 1 , wherein the body portion comprises
 a plurality of bead regions located to be spaced apart from each other in a longitudinal direction and have the beads formed on an upper plate thereof; and   a middle beadless region located between the plurality of bead regions and having a flat upper plate.   
     
     
         3 . The impact reinforcement component of  claim 2 , wherein the bead region has the plurality of beads disposed on the upper plate to be spaced apart from each other in a width direction. 
     
     
         4 . The impact reinforcement component of  claim 2 , wherein a longitudinal length of the middle beadless region is equal to or greater than twice a longitudinal length obtained by adding the boundary portion and the end flange. 
     
     
         5 . A method for manufacturing an impact reinforcement component, comprising:
 a roll stamping operation of continuously repeating roll stamping in which a stamping roll rotates multiple times and presses a material in a longitudinal direction; and   a flange forming operation of bending each of both ends of the material to form an end flange,   wherein in the roll stamping operation, a plurality of bead regions are formed in the material, a middle beadless region is formed between the plurality of bead regions, and an end beadless region is formed at each of both ends.   
     
     
         6 . The method for manufacturing an impact reinforcement component of  claim 5 , wherein the roll stamping operation comprises
 a full bending process in which the stamping roll rotates multiple times and presses the material, to bend the material to form side walls on both sides and an upper plate;   a first end beadless process of forming a flat upper plate at one end of the material in a longitudinal direction to form the end beadless region;   a bead process of forming a plurality of beads on an upper plate of the material to be spaced apart from each other in the longitudinal direction to form the plurality of bead regions;   a middle beadless process of forming a flat upper plate between the plurality of beads to form the middle beadless region; and   a second end beadless process of forming a flat upper plate at the other end of the material in the longitudinal direction to form the end beadless region,   wherein the first end beadless process, bead process, middle beadless process, and second end beadless process are performed during the full bending process, and the middle beadless process is performed during the bead process. [claim  7 ] The method for manufacturing an impact reinforcement component of claim  6 , wherein a longitudinal length of the middle beadless region formed by the middle beadless process is equal to or greater than twice a longitudinal length of the end beadless region formed by the first end beadless process or the second end beadless process.