Process for the production of an armoring component for motor vehicles

Abstract

A process for the production of an armoring component for motor vehicles, the process beginning with provision of an armoring element made of an armored steel. At least one region of a surface of the armoring element is then subjected to particle-impact treatment. Finally, a coating is applied to the particle-impact-treated surface of the armoring element, where the coating consists of a material that is softer than the armored steel.

1 - 13 . (canceled) 
     
     
         14 . A process of producing an armoring component for a motor vehicle, the process comprising:
 providing an armoring element comprising an armored steel,   performing a particle-impact treatment on a region of a surface of the armoring element,   applying a coating to the particle-impact-treated surface of the armoring element, the coating comprising a material softer than the armored steel.   
     
     
         15 . The process according to  claim 14 , wherein performing the particle-impact treatment uses a particle-impact material with a hardness of 60 to 70 Rockwell (HRC). 
     
     
         16 . The process according to  claim 14 , wherein performing the particle-impact treatment uses a particle-impact material with a diameter of 0.4 millimeter to 1.2 millimeters. 
     
     
         17 . The process according to  claim 14 , wherein performing the particle-impact treatment comprises particles impacting the surface at an angle ranging from 30° to 70° relative to the surface. 
     
     
         18 . The process according to  claim 14 , wherein performing the particle-impact treatment produces a surface roughness Ra of 3 to 10 micrometers. 
     
     
         19 . The process according to  claim 14 , wherein applying the coating comprising applying aluminum, an aluminum alloy, zinc, or a zinc alloy. 
     
     
         20 . The process according to  claim 14 , wherein applying the coating comprises spraying, thermal spraying, arc spraying, or flame spraying. 
     
     
         21 . The process according to  claim 14 , wherein applying the coating comprises applying a plurality of layers. 
     
     
         22 . The process according to  claim 14 , wherein applying the coating comprising applying the coating having a thickness of 0.01 millimeter to 0.4 millimeter. 
     
     
         23 . The process according to  claim 14 , wherein providing the armoring element comprises providing the armored steel comprising a steel alloy, the steel alloy comprising the following alloy constituents expressed in percentage by weight (% by weight): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   carbon (C) 
                   0.2 to 0.5 
                 
                     
                   manganese (Mn) 
                   0.3 to 2.5 
                 
                     
                   nickel (Ni) 
                   0.5 to 3.0, 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
               
            
           
         
         and also further alloy constituents, a remainder being iron (Fe) and smelting-derived impurities. 
       
     
     
         24 . The process according to  claim 23 , wherein providing the armoring element further comprises providing the steel alloy further comprises alloy constituents expressed in percentage by weight (% by weight): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   silicon (Si) 
                   0.1 to 3.0 
                 
                     
                   phosphorus (P) 
                   less than 0.05 
                 
                     
                   sulfur (S) 
                   less than 0.02 
                 
                     
                   aluminum (Al) 
                   less than 0.08 
                 
                     
                   copper (Cu) 
                   less than 0.12 
                 
                     
                   molybdenum (Mb) 
                   0.1 to 1.0 
                 
                     
                   boron (B) 
                   0.001 to 0.01 
                 
                     
                   nitrogen (N) 
                   less than 0.05 
                 
                     
                   chromium (Cr) 
                   0.1 to 1.0 
                 
                     
                   titanium (Ti) 
                   less than 0.1 
                 
                     
                   cobalt (Co) 
                   less than 2.0 
                 
                     
                   niobium (Nb) 
                   less than 0.8. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         25 . The process according to  claim 14 , wherein providing the armoring element comprises providing a steel sheet with a hardness of 380 to 760 Vickers (HV). 
     
     
         26 . The process according to  claim 14 , wherein applying the coating comprises applying the coating having a hardness of 10 to 230 Vickers (HV). 
     
     
         27 . The process according to  claim 14 , wherein performing the particle-impact treatment uses a particle-impact material with a hardness of 64 to 68 Rockwell (HRC). 
     
     
         28 . The process according to  claim 14 , wherein applying the coating comprises applying the coating to a thickness of 0.1 millimeter to 0.25 millimeter. 
     
     
         29 . The process according to  claim 14 , wherein applying the coating comprises applying the coating to a thickness of 0.12 millimeter to 0.22 millimeter. 
     
     
         30 . The process according to  claim 14 , wherein providing the armoring element comprises providing a steel sheet with a hardness of 475 to 665 Vickers (HV). 
     
     
         31 . The process according to  claim 14 , wherein providing the armoring element comprises providing a steel sheet with a hardness of 520 to 620 Vickers (HV). 
     
     
         32 . The process according to  claim 14 , wherein applying the coating comprises applying the coating having a hardness of 15 to 115 Vickers (HV). 
     
     
         33 . The process according to  claim 14 , wherein applying the coating comprises applying the coating having a hardness of 20 to 100 Vickers (HV).