Several common surface treatment processes for precision aluminum stamping parts 'hardware'

Friends engaged in the stamping industry often encounter precision aluminum stamping parts. Because the specific gravity of aluminum is relatively light, the weight of products of the same size is relatively light, and the cost will be effectively reduced. Basically, 90% of the precision aluminum stamping parts we process require surface treatment. Here the author shares some common surface treatment methods for precision aluminum stamping parts. First, the surface treatment of precision aluminum stamping parts with improved aluminum anodization has to be anodized. Anodizing can effectively compensate for the lack of surface hardness and wear resistance of aluminum stamping parts, and it can also greatly increase the use time of aluminum stamping parts and make the product look more beautiful. Now, anodizing has become a common and common surface treatment method for aluminum stamping products. Anodizing refers to the electrochemical oxidation of metals or alloys. Aluminum and its alloys form an oxide film on the aluminum product (anode) due to the action of the applied current under the corresponding electrolyte and specific process conditions. In addition, aluminum stamping parts can also be anodized to obtain various colors of the surface, further expanding the use of aluminum stamping parts. 2. Sandblasting Sandblasting is generally an intermediate process for the surface treatment of precision aluminum stampings. The aluminum stampings after sandblasting can effectively remove surface burrs and oil stains. The surface of aluminum parts can improve the cleanliness and can be controlled by sandblasting. Materials to obtain products with different surface roughness. After sandblasting, the performance of the product can be significantly improved. In the subsequent surface treatment process, the adhesion between the aluminum stamping part and the coating can also be increased, making the product more durable and beautiful. Third, polishing treatment The polished precision aluminum stamping parts can be close to the mirror effect, which greatly improves the grade and aesthetics of the product. However, due to the characteristics of aluminum products, the polishing of precision aluminum stampings is relatively rare, and if other surface treatments are not done after polishing, the durability will be relatively low. It is difficult to maintain the mirror effect for a long time after polishing of precision aluminum stamping parts. Generally, stainless steel materials are recommended for products that require a mirror effect. Fourth, wire drawing processing There are many types of wire drawing of precision aluminum stamping parts. The more common ones are straight wire drawing, random wire drawing, spiral drawing, and thread drawing. After the precision aluminum stamping parts have been processed by wire drawing, you can see clear and fine traces on the surface, and the product gives people a visual feeling of luminous silk pattern. Precision aluminum stampings basically need to be surface treated after processing, but the specific treatment method used depends on the specific requirements of the customer. In the case of no request from the customer, anodizing is generally used.