Method for forming aluminum sleeve

Abstract

A method for forming an aluminum sleeve comprises the following steps of: preparing material; wherein an aluminum alloy substrate is prepared; forging the aluminum material into a sleeve; trimming the sleeve in detail; thermally processing the sleeve for enhancing and hardening the forged sleeve; and anodizing-processing the sleeve to form a film on the sleeve. Between the forging and thermal processing; machining the trimmed sleeve through at least one process of rolling, grinding; polishing and vibration. Between thermal processing and anode-processing, surface-processing the sleeve so as to generate a blurred surface by a sanding step. In the anode-processing, dying the sleeve so that the color of the sleeve without fading or stripping.

What is claimed is: 
     
         1 . A method for forming an aluminum sleeve comprising the following steps of:
 preparing material; wherein an aluminum alloy substrate is prepared;   forging the aluminum material into a sleeve;   trimming the sleeve in detail;   thermally processing the sleeve for enhancing and hardening the forged sleeve; and   anodizing-processing the sleeve to form a film on the sleeve.   
     
     
         2 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein between the forging and thermal processing; machining the trimmed sleeve through at least one process of rolling, grinding (step 4); polishing and vibration. 
     
     
         3 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein between thermal processing and anode-processing, surface-processing the sleeve so as to generate a blurred surface by a sanding step. 
     
     
         4 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein in the anodizing-processing, dying the sleeve so that the color of the sleeve without fading or stripping. 
     
     
         5 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein one end of the sleeve has a connecting portion and another end thereof has a locking portion for locking a screwing element. 
     
     
         6 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein the connecting portion is communicated to or non-communicated to the locking portion. 
     
     
         7 . The method for forming an aluminum sleeve as claimed in  claim 1 , wherein a surface of the sleeve has a single color or has multiple colors.