Aluminum parts processing technology to solve the problem of aluminum parts processing deformation（2）

 2. Stretching

　　Use material aluminum skin. The continuous mold machine and the mold are used for multiple deformations to achieve the shape requirements, suitable for non-cylindrical bodies (aluminum products have curved products).

　　Advantages: More complex and multiple-deformation products have stable size control in the production process, and the product surface is smoother.

　　 Disadvantages: high mold cost, relatively long development cycle, high requirements for machine selection and accuracy.

　　Shenzhen aluminum parts processing manufacturers summarize the surface treatment of aluminum products

　　 1. Sand blasting (shot peening)

　　The process of cleaning and roughening the metal surface by the impact of high-speed sand flow.

This method of surface treatment of aluminum parts can make the surface of the workpiece obtain a certain degree of cleanliness and different roughness, and improve the mechanical properties of the surface of the workpiece, thus improving the fatigue resistance of the workpiece and increasing the gap between it and the coating. The adhesion of the coating prolongs the durability of the coating film, and is also conducive to the leveling and decoration of the coating. We often see this process in various products of Apple.

　　 2. Polishing

　　Processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and flat surface. The polishing process is mainly divided into: mechanical polishing, chemical polishing, electrolytic polishing. Aluminum parts can be mechanically polished + electrolytically polished to be able to approach the mirror effect of stainless steel. This process gives a high-end simplicity and a stylish future.

　　3、Brushing

　　Wire drawing is a manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. Wire drawing can be divided into straight wire drawing, random wire drawing, rotary wire drawing, and thread drawing. The metal wire drawing process can clearly show every fine wire mark, so that the fine matte hair shines in the metal matte, and the product has a sense of fashion and technology.

　　 4. High-gloss cutting

　　Using the engraving machine to reinforce the diamond knife on the main shaft of the engraving machine that rotates at high speed (generally the speed is 20,000 rpm) to cut the parts, producing local highlights on the surface of the product. The brightness of cutting highlights is affected by the speed of the milling bit. The faster the bit speed, the brighter the cutting highlights, and the darker it is and the easier it is to produce knife lines. High-gloss high-gloss cutting is particularly used in mobile phones, such as iphone5. In recent years, some high-end TV metal frames have used high-gloss milling technology, coupled with anodizing and wire-drawing technology, the TV is full of fashion and technology sharpness.

　　 5. Anodizing

　　Anodic oxidation refers to the electrochemical oxidation of metals or alloys. Under the corresponding electrolyte and specific process conditions, aluminum and its alloys form a layer of oxide film on aluminum products (anode) due to the applied current. Anodizing can not only solve the defects of aluminum surface hardness and wear resistance, but also extend the service life of aluminum and enhance its aesthetics. It has become an indispensable part of aluminum surface treatment and is currently the most widely used and very successful. Craftsmanship.

　　 6, two-color anode

　　 Two-color anode refers to anodizing a product and giving different colors to specific areas. The two-color anodizing process is rarely used in the television industry because of the complex process and high cost; but the contrast between the two colors can better reflect the high-end and unique appearance of the product.