Method for Forming Multiple Colors on an Aluminum Alloy Structure

Abstract

A method includes forming an aluminum alloy structure, performing a first anodizing process to form a first color layer on the aluminum alloy structure, performing a first cutting process to form at least one first working groove in the first color layer and the aluminum alloy structure, performing a second anodizing process to form a second color layer in the first working groove, performing a second cutting process to form at least one second working groove in the first color layer and the aluminum alloy structure, and performing a third anodizing process to form a third color layer in the second working groove. Thus, the aluminum alloy structure is worked by cutting processes and anodizing processes to form an aluminum alloy product so that the aluminum alloy product has multiple color layers.

1 . A method for forming multiple colors on an aluminum alloy structure, comprising:
 a first step of working an aluminum alloy to form an aluminum alloy structure;   a second step of performing a first anodizing process on the aluminum alloy structure to form a first color layer on a surface of the aluminum alloy structure;   a third step of performing a first cutting process on the first color layer and the surface of the aluminum alloy structure to form at least one first working groove in the first color layer and the surface of the aluminum alloy structure;   a fourth step of performing a second anodizing process on the aluminum alloy structure to form a second color layer in the first working groove;   a fifth step of performing a second cutting process on the first color layer and the surface of the aluminum alloy structure to form at least one second working groove in the first color layer and the surface of the aluminum alloy structure; and   a sixth step of performing a third anodizing process on the aluminum alloy structure to form a third color layer in the second working groove so as to form an aluminum alloy product.   
     
     
         2 . The method of  claim 1 , wherein in the third step of performing a first cutting process on the aluminum alloy structure, the first color layer is partially cut to form the first working groove, and the first working groove is passed through the first color layer and extended into the surface of the aluminum alloy structure so that a color of the surface of the aluminum alloy structure is exposed outwardly from the first working groove. 
     
     
         3 . The method of  claim 1 , wherein in the third step of performing a first cutting process on the aluminum alloy structure, the first working groove has an annular shape. 
     
     
         4 . The method of  claim 1 , wherein in the fifth step of performing a second cutting process on the aluminum alloy structure, the first color layer is partially cut to form the second working groove, and the second working groove is passed through the first color layer and extended into the surface of the aluminum alloy structure so that a color of the surface of the aluminum alloy structure is exposed outwardly from the second working groove. 
     
     
         5 . The method of  claim 1 , wherein in the fifth step of performing a second cutting process on the aluminum alloy structure, the second working groove has an annular shape. 
     
     
         6 . The method of  claim 1 , wherein in the third step of performing a first cutting process on the aluminum alloy structure, the first cutting process is performed by turning. 
     
     
         7 . The method of  claim 1 , wherein in the fifth step of performing a second cutting process on the aluminum alloy structure, the second cutting process is performed by turning. 
     
     
         8 . The method of  claim 2 , wherein the surface of the aluminum alloy structure has a gray color. 
     
     
         9 . The method of  claim 4 , wherein the surface of the aluminum alloy structure has a gray color. 
     
     
         10 . The method of  claim 1 , wherein the method further comprises:
 a seventh step of performing a third cutting process on the first color layer and the surface of the aluminum alloy structure to form a third working groove in the first color layer and the surface of the aluminum alloy structure; and   a eighth step of performing a fourth anodizing process on the aluminum alloy structure to form a fourth color layer in the third working groove.