What is Anodizing In CNC Metal Fabrication
As a high precision process, surface finishing plays an important role in CNC metal machining industry, and it may affect the wear resistance, visual appearance and working efficiency of custom metal parts. Among all the mainstream technologies, anodizing is one of the most reliable and economical surface treatment technologies for aluminum and alloy CNC parts, widely used in automotive, electronic, aerospace, industrial equipment and other fields. Anodizing is an electrochemical passivation process that can improve the inherent properties of metal substrates, unlike traditional spraying or plating processes that deposit external layers on metal surfaces. So it is very suitable to the high precision CNC machining parts with strict dimension tolerance requirement.
We are professional CNC metal processing manufacturer. We use standard finishing processes in our production. We suggest anodizing as a surface treatment service for your custom aluminum parts. CNC machining of precision aluminum parts raw material. They are easily oxidized, scratched, corroded in daily use and the service life is greatly shortened. Well, the anodizing treatment can solve these industry pain points. We verify the accuracy of the parts machined with CNC and their structural stability.
What is Anodizing of CNC Machined Parts?
When we understand the process it is very important to know the benefits of anodizing. The acid electrolyte is controlled during the treatment process. The CNC metal part and the auxiliary metal plate are the anode and cathode of the circuit respectively. In constant current conditions, the oxygen ions in the electrolyte react with the aluminum atoms on the workpiece surface to form a dense uniform porous aluminum oxide layer.
The oxide layer is very firmly bonded to the metal substrate and will not peel, chip or spall. This is the only difference from the standard coating process. For high precision CNC parts with complex structure such as threaded holes, micro-grooves, we have upgraded the Anodizing process, which can make a uniform protective film on all corners of workpiece, and it does not affect the assembly accuracy and dimensional stability machined by CNC equipments. The oxide layer thickness can be precisely matched to the customer's needs from decorative thin films to wear resistant, thick hard oxide layers for industrial parts.
Benefits of CNC Machined Parts Anodizing
Anodizing provides many practical value upgrades to the performance, appearance and usability of CNC metal parts. First it greatly increases resistance to oxidation and corrosion. The thick oxide film can isolate the metal substrate from air, moisture and corrosive substances, so that aluminum CNC parts can be suitable for harsh environments such as outdoor exposure and humid industrial workshops, which effectively prolongs the service life of the product.
Secondly, it increases the hardness of surface and resistance to wear. The anodized oxide film is very suitable for mechanical accessories, fixture parts and sliding structural parts with frequent contacts and frictions, and greatly improves the scratch and friction resistance of CNC parts. (3) The process has a good decorative effect. The porous oxide layer can absorb a variety of color pigments, so that a variety of colors such as black, silver, blue, gold and gray can be achieved, which can enhance the texture and visual appeal of the smooth surface of precision CNC parts.
And it is safe and eco friendly. Anodizing: No toxic coating shedding like electroplating and other polluting processes. It meets international standards for environmental protection. It satisfies the export requirements of the European and American markets. At the same time, the process has no effect on the basic mechanical property of metal materials, and has high precision of CNC machining.
Anodizing and CNC Machining Services
Extensive experience in CNC metal processing and surface finishing. We provide a one stop custom anodizing to customers worldwide. We can offer customized processing for all kinds of aluminum alloy CNC parts, like equipment housing, precision bracket, robot parts, automobile accessories and electronic structure parts. Strict quality control from pretreatment degreasing, surface cleaning, electrochemical treatment to post-sealing and coloring ensures uniform film thickness, stable color and perfect surface of each work piece.
Product quality and customer demand are always the core, we combine the precise CNC machining technology and the mature Anodizing technology to produce the metal component products with high quality, high durability and high value. We provide standard anodizing finishing services and customized services to meet different application requirements of different industries. Prototype to small batch production.
