Several common surface treatment processes of aluminum stamping parts

In the stamping industry friends often encounter aluminum stamping parts. As the proportion of aluminum is relatively light, products with the same size and light weight will also effectively reduce costs. Basically, 90% of the aluminum stamping parts we process need surface treatment. Here we will share some common surface treatment methods for aluminum parts. First of all, the anodizing process must be mentioned when the surface of aluminum stamping parts is improved. Anodizing can effectively make up for the deficiency of surface hardness and wear resistance of aluminum stamping parts, and also can greatly increase the service time of aluminum stamping parts, making the appearance of products more beautiful. Nowadays, anodizing has become the most common surface treatment method for aluminum stamping products. Anodic oxidation refers to the electrochemical oxidation of metals or alloys. In the corresponding electrolyte and specific process conditions, aluminum and its alloy form oxide film on aluminum products (anode) due to the applied current. In addition, aluminum stamping parts can be obtained by anodizing various colors, which further expands the use of aluminum stamping parts. Secondly, sandblasting is the intermediate process of surface treatment of aluminum stamping parts. The surface burr and oil stain of aluminum stamping parts after sandblasting can be effectively removed. The products with different surface roughness were obtained. After sandblasting, the performance of the product can be greatly improved. In the subsequent surface treatment process, the adhesion between the aluminum die and the coating can be increased, thus making the product more durable and beautiful. Third, the polished aluminum stamping parts can achieve mirror effect, greatly improving the product grade and beauty. However, due to the characteristics of aluminum products, the polishing of aluminum stamping parts is relatively less, and if no other surface treatment is carried out after polishing, the durability will be relatively low. It is difficult to maintain the mirror effect for a long time after aluminum stamping parts are polished. In general, stainless steel is recommended for products requiring mirror effect. Fourth, there are many types of drawings for aluminum stamping parts. The common ones are straight line drawing, random line drawing, rotating line drawing and thread drawing. After drawing the aluminum stamping parts, you can see that there are clear and delicate traces on the surface, and the product has the visual sense of luminous silk thread. Basically, aluminum stamping parts need surface treatment after processing. However, the choice of processing method depends on the specific requirements of the customer. Anodizing is usually used in the absence of customer requirements.