Hot-stamped component

Abstract

The present disclosure provides a hot-stamped component having a pierced portion formed therein, the hot-stamped component including: a base material; an interdiffusion layer arranged on the base material; and a plating layer arranged on the interdiffusion layer, wherein the hot-stamped component includes a shearing-processed surface formed at an edge of the pierced portion, the shearing-processed surface includes a rollover surface, a shear surface, and a fracture surface, and a thickness th1 of the fracture surface and a thickness th2 of the shearing-processed surface satisfy Equation 1 (th1/th2≤0.6).

1 . A hot-stamped component having a pierced portion formed therein, the hot-stamped component comprising:
 a base material;   an interdiffusion layer arranged on the base material; and   a plating layer arranged on the interdiffusion layer,   wherein the hot-stamped component further comprises a shearing-processed surface formed at an edge of the pierced portion,   the shearing-processed surface comprises a rollover surface, a shear surface, and a fracture surface, and   a thickness (th1) of the fracture surface and a thickness (th2) of the shearing-processed surface satisfy the following Equation 1:   
       
         
           
             
               
                 
                   
                     
                       th 
                       ⁢ 
                       1 
                       / 
                       th 
                       ⁢ 
                       2 
                     
                     ≤ 
                     
                       0 
                       . 
                       6 
                       . 
                     
                   
                 
                 
                   
                     < 
                     
                       Equation 
                       ⁢ 
                           
                       1 
                     
                     > 
                   
                 
               
             
           
         
       
     
     
         2 . The hot-stamped component of  claim 1 , wherein the rollover surface, the shear surface, and the fracture surface are sequentially arranged in a thickness direction of the hot-stamped component. 
     
     
         3 . The hot-stamped component of  claim 1 , wherein the thickness of the shearing-processed surface is a sum of the thickness of the fracture surface, a thickness of the shear surface, and a thickness of the rollover surface. 
     
     
         4 . The hot-stamped component of  claim 1 , wherein the thickness of the fracture surface is a shortest distance in the thickness direction of the hot-stamped component from a starting point of the fracture surface to an end point of the fracture surface. 
     
     
         5 . The hot-stamped component of  claim 1 , wherein the thickness of the shearing-processed surface is a shortest distance in the thickness direction of the hot-stamped component from a starting point of the rollover surface to an end point of the fracture surface. 
     
     
         6 . The hot-stamped component of  claim 1 , further comprising a plating layer delamination surface on which at least a portion of an upper surface of the interdiffusion layer is exposed. 
     
     
         7 . The hot-stamped component of  claim 6 , wherein a width (w 1 ) of the plating layer delamination surface and a width (w 2 ) of the rollover surface satisfy the following Equation 2: 
       
         
           
             
               
                 
                   
                     
                       w 
                       ⁢ 
                       1 
                       / 
                       w 
                       ⁢ 
                       2 
                     
                     ≤ 
                     
                       0 
                       . 
                       6 
                       . 
                     
                   
                 
                 
                   
                     < 
                     
                       Equation 
                       ⁢ 
                           
                       2 
                     
                     > 
                   
                 
               
             
           
         
       
     
     
         8 . The hot-stamped component of  claim 1 , wherein the pierced portion comprises at least two pierced portions.