Metal member and method of manufacturing same

Abstract

Provided is a metal member including a metal substrate and a covering layer disposed on a surface of the metal substrate, where the covering layer includes a region containing an insulating layer made of an insulating material, and a region containing an electrodeposited layer having a different texture from the insulating layer and formed by electrodeposition coating or electroplating. The metal member is manufactured by an insulating-layer-forming step of forming an insulating layer made of an insulating material on the entire surface of a region of the metal substrate in which the covering layer is to be formed, a removing step of removing a portion of the insulating layer to form an exposed portion of the metal substrate, and an electrodeposited-layer-forming step of applying a paint having a different texture from the insulating layer to the exposed portion by electrodeposition coating or electroplating to form an electrodeposited layer.

1 . A metal member, comprising: a metal substrate; and a covering layer disposed on a surface of the metal substrate, wherein
 the covering layer includes   a region containing an insulating layer made of an insulating material, and   a region containing an electrodeposited layer having a different texture from the insulating layer and formed by electrodeposition coating or electroplating.   
     
     
         2 . The metal member according to  claim 1 , wherein the texture includes a tactile texture. 
     
     
         3 . The metal member according to  claim 1 , wherein the texture includes a visual texture. 
     
     
         4 . The metal member according to  claim 1 , wherein at least one of the insulating layer and the electrodeposited layer formed by electrodeposition coating is made of a resin containing an additive agent. 
     
     
         5 . The metal member according to  claim 1 , wherein
 the metal substrate includes a mirror-finished surface portion on a part of the surface of the metal substrate,   one of the insulating layer and the electrodeposited layer formed by electrodeposition coating is made of a transparent resin disposed on the finished surface portion, and   the other of the insulating layer and the electrodeposited layer formed by electrodeposition coating is made of a resin containing an additive agent.   
     
     
         6 . The metal member according to  claim 1 , wherein the insulating layer and the electrodeposited layer formed by electrodeposition coating have different colors. 
     
     
         7 . The metal member according to  claim 1 , wherein the metal substrate is made of a magnesium alloy. 
     
     
         8 . The metal member according to  claim 7 , wherein the magnesium alloy contains Al as an additive element, Al constituting 2.5% to 9.5% by mass of the magnesium alloy. 
     
     
         9 . A method for manufacturing a metal member by forming a covering layer on a surface of the metal substrate, comprising:
 an insulating-layer-forming step of forming an insulating layer made of an insulating material on the entire surface of a region of the metal substrate in which the covering layer is to be formed;   a removing step of removing a portion of the insulating layer to form an exposed portion of the metal substrate where the metal substrate is exposed on a surface; and   an electrodeposited-layer-forming step of applying a paint having a different texture from the insulating layer to the exposed portion by electrodeposition coating or electroplating to form an electrodeposited layer,   wherein the covering layer includes the insulating layer and the electrodeposited layer.   
     
     
         10 . The method for manufacturing a metal member according to  claim 9 , wherein the removing step is performed by irradiating the insulating layer with a laser beam.