Friends who are engaged in stamping industry often encounter aluminum stamping parts because aluminum has a lighter weight, so products of the same size are also lighter, and the cost will be reduced. Basically, 90% of the aluminum stamping products we process need surface treatment. Here we share some common surface treatment methods for aluminum stamping parts.
When it comes to surface treatment of aluminum stamping parts, we have to mention anodizing technology. Anodizing can effectively compensate for the shortcomings of aluminum stamping parts in surface hardness and wear resistance, and can greatly increase the service life of aluminum stamping parts and make the product look more beautiful.
Nowadays, anodizing has become the most common and universal surface treatment method for aluminum stamping products. Anodizing refers to the process of electrochemical oxidation of metals or alloys. Under the action of external current, aluminum and its alloys in the corresponding electrolyte and specific process conditions form a layer of oxide film on the aluminum product (anode).
In addition, aluminum stamping parts can also obtain various colors of surface through anodizing, which further expands the application of aluminum stamping parts.
Sandblasting is usually an intermediate process in the surface treatment of aluminum stamping parts. After sandblasting, the surface of the aluminum stamping parts can effectively remove burrs and oil stains, improve the cleanliness of the aluminum parts, and can obtain products with different surface roughness by controlling the sandblasting material.
After sandblasting, the performance of the product can be significantly improved. In the subsequent surface treatment process, the adhesion between the aluminum stamping parts and the coating can also be increased, making the product more durable and beautiful.
After polishing, aluminum stamping parts can be close to the mirror effect, greatly improving the grade and appearance of the product. However, due to the characteristics of aluminum products, polishing of aluminum stamping parts is relatively rare, and if no other surface treatment is done after polishing, the durability will be relatively low.
It is difficult for polished aluminum stamping parts to maintain a mirror effect for a long time. Generally, for products that require a mirror effect, it is recommended to use stainless steel materials.
Aluminum stamping parts have many classifications for wire drawing, the more common ones are straight-line wire drawing, disorderly wire drawing, rotary wire drawing, and thread wire drawing. After wire drawing treatment, the surface of the aluminum stamping parts will have clear fine marks, and the product will give a feeling of light-emitting silk marks visually.
Basically, aluminum stamping parts need to be surface treated after processing. However, which treatment method to choose depends on the specific requirements of the customer. If there are no specific requirements from the customer, anodizing is generally used.