We are a precision prototype manufacturer based in Shenzhen, China. We specialize in producing high-quality prototype models. We build reliable and affordable hardware prototypes, including aluminum alloy models.
Let’s explore how we manufacture aluminum alloy prototypes and what precautions we take.
1. From Drawing to Prototype
Most manufacturers use CNC machining to produce aluminum alloy prototypes. They follow the customer’s drawings to carry out CNC processing, then perform a series of surface treatments and coarse anodizing to complete the final aluminum alloy prototype.
1.1 Oxidation in Prototyping
The aluminum alloy prototype model is one of the most common types of metal prototypes. Manufacturers usually apply oxidation as a surface treatment. But what kind of oxidation do they use? Why do they apply it? And what precautions should they take during the oxidation process?
2 Protective Film Formation
In the oxidation treatment of an aluminum alloy hand plate, technicians harden the aluminum surface by forming a protective film, which helps prevent scratches on the finished product.
The oxidation of aluminum alloy hand plates serves two main purposes: first, it protects the surface of the hand plate from corrosion.
2.1 Aesthetics and Durability
The second purpose is to enhance the aesthetics of the hand plate. After oxidation, we apply additional surface treatments such as oil injection, wire drawing, and sandblasting. These processes beautify the surface, elevate the product’s quality, and extend its service life.
2.2 Sandblasting Before Oxidation
Oxidizing aluminum alloy hand plates is a common surface treatment method. Before oxidation, we usually perform sandblasting to avoid affecting the appearance of the aluminum alloy hand plate.
If we polish the surface of aluminum alloy hand plates, we remove the oxide layer. To create a natural aluminum alloy hand plate, we simply sand it and then sandblast it.
Processing aluminum alloy hand plates requires many precautions. The following section explains the key issues to address before sandblasting
Before sandblasting the aluminum alloy, the sand type and particle size must be selected.
The blasting should be uniform: the blasting pressure should be consistent, the nozzle should move smoothly, and the spraying angle should be the same.
Do not aim the spray gun directly at the part or bring it too close; maintain a consistent distance between the nozzle and the workpiece
After sandblasting, we perform alkali etching, chemical polishing, and anodizing, followed by sealing and drying.
3 Conclusion
To oxidize an aluminum alloy prototype, manufacturers start with surface preparation, like sanding and sandblasting, then apply chemical treatments such as alkali etching, polishing, and anodizing to form a protective oxide layer. Finally, sealing and drying improve corrosion resistance and durability.
