1. Sandblasting is also called shot peening.

The process of cleaning and roughening the metal surface by the impact of high-speed sand flow. The surface treatment of aluminum parts by this method can make the surface of the workpiece obtain certain cleanliness and different roughness, improve the mechanical properties of the surface of the workpiece, thereby improving the fatigue resistance of the workpiece, increasing its adhesion to the coating, prolonging the durability of the coating, and being beneficial to the leveling and decoration of the coating. This aluminum alloy technology is often seen in all kinds of Apple products, and is increasingly adopted by the existing TV shell or middle frame.

polish

Using mechanical, chemical or electrochemical methods, the surface roughness of automobile aluminum parts is reduced to obtain a bright and flat surface. Polishing processes are mainly divided into mechanical polishing, chemical polishing and electrolytic polishing. After mechanical polishing and electrolytic polishing, automobile aluminum parts can approach the mirror effect of stainless steel, giving people a sense of high-grade, simple and fashionable future (of course, it is easy to leave fingerprints and needs more care).

Step 3: wire drawing

Metal wire drawing is a manufacturing process of repeatedly scraping aluminum plate with sandpaper. Drawing can be divided into straight drawing, random drawing, spiral drawing and thread drawing. Metal processing wechat, with good content, deserves attention. Metal wire drawing technology can clearly show every tiny silk mark, so that delicate hair luster can be distributed in metal matte, and the product has both a sense of fashion and a sense of technology.

4. High-gloss cutting

The diamond cutter is reinforced to cut the parts on the spindle of the engraving machine which rotates at a high speed (generally 20000 rpm), resulting in a local highlight area on the product surface. The brightness of cutting highlights is affected by the speed of milling cutter. The faster the bit speed, the brighter and darker the cutting highlights, and the easier it is to produce tool marks. Metal processing wechat, with good content, deserves attention.

5. Anodizing

Anodizing refers to the electrochemical oxidation of metals or alloys. Under the corresponding electrolyte and specific process conditions, aluminum and its alloys form an oxide film on aluminum products (anodes) under the action of applied current. Anodizing can not only solve the defects of surface hardness and wear resistance of aluminum, but also prolong the service life of aluminum and enhance its appearance. It has become an indispensable part of aluminum surface treatment, and it is the most widely used and very successful process at present.

Aluminum alloy processing technology

The above information is compiled online and can be used as a reference.