Products Description
The CNC machining aluminum hard anodized housing is formed by precision CNC cutting, and a hard oxide film is formed on the surface. It is wear-resistant and corrosion-resistant, and is both lightweight and high-strength. It is suitable for electronic equipment, has excellent protection performance, and outstanding appearance and texture.
Process Flow
Pre-preparation: according to the design drawings of aluminum shell, determine the suitable aluminum alloy materials (such as 6061 and 7075), and complete the debugging of CNC machining equipment, the manufacture of fixtures, and the preparation of chemical reagents and equipment required for hard anodic oxidation.
CNC machining: The aluminum alloy blank is milled, drilled and turned according to the programmed path by CNC milling machines, lathes and other equipment, and the aluminum shell meeting the requirements of dimensional accuracy and geometric tolerance is formed.
Post-processing: deburring and polishing the edges and corners of the aluminum shell processed by numerical control, followed by ultrasonic cleaning to remove impurities such as cutting fluid and metal chips on the surface and thoroughly drying.
Pretreatment before hard anodic oxidation: put the cleaned aluminum shell into alkaline solution for degreasing, then remove the oxide film on the surface by acid cleaning, and finally wash it with water to ensure that the shell surface is free of oil stains, oxide layers and other substances that interfere with the oxidation reaction.
Hard anodic oxidation: The pretreated aluminum shell is used as an anode, put into an electrolyte such as sulfuric acid, and a constant DC current is applied to form an alumina film with uniform thickness and high hardness on the surface of the shell, and the electrolyte temperature, current density and oxidation time are strictly controlled during the process.
Post-oxidation treatment: firstly, the oxidized aluminum shell is washed with water to remove the residual electrolyte on the surface, then the hole sealing treatment (such as hot water sealing and high-temperature steam sealing) is carried out to block the micropores of the alumina film, so as to improve the corrosion resistance and wear resistance of the shell, and finally, the appearance inspection and size retest are carried out.
About Us
Professional CNC machining services
Xi an Hi-Precision Machinery Co., Ltd. is located in the ancient capital of Xi'an, China. It was established in 2007 and currently has more than 50 core employees. We provide precision machining services for a variety of materials such as turning, milling, drilling, tapping, boring, laser cutting, stamping and casting. If you need CNC machining aluminum hard anodized housing services, please contact us. The products we manufacture consistently meet the tolerance requirements of our customers and provide customers with thoughtful after-sales service.
Why Choose Us?
Our Advantages
Free Samples
We provide free sample service. If you need samples, please contact customer service.
Fast Delivery
We are always able to deliver products on time or ahead of schedule as agreed in the contract.
High Quality Products
Our quality inspection procedures are very strict to ensure that the products delivered are 100% qualified.
Perfect After-Sales
If there is any product quality problem, please contact us for free replacement.
Why is hard anodizing performed on the surface of CNC aluminum parts?
Aluminum hard anodizing (Hard Anodizing, referred to as "hard oxide") can form an oxide film of 5-150μm on the surface of aluminum alloy (the thickness of ordinary anodized film is usually ≤20μm), with a hardness of up to HV300-500 (close to high carbon steel). The oxide film has a porous structure and can penetrate lubricating oil, which is suitable for sliding friction scenarios (such as the mating surface of the mechanical housing). In addition, it can also withstand salt spray and acid-base environments (salt spray test can reach more than 500 hours). And the oxide film has a high resistivity (10¹⁰-10¹²Ω・cm), which is suitable for electronic equipment housing. Combined with the high precision of CNC machining (dimensional tolerance ±0.01mm), the dual needs of "precision structure + high-performance surface" can be achieved.
Case Showcase
CNC machining aluminum hard anodized housing is a process that combines precision CNC machining with surface treatment technology. It is widely used in aluminum alloy housings that require high strength, high corrosion resistance and wear resistance (such as military equipment housings, precision instrument housings, outdoor equipment housings, etc.).
FAQ
Q: Do the raw materials you use meet international standards?
A: We select the plastic and metal raw materials used in the production of CNC electronics box in accordance with the RoHS directive.
Q: What colors are available for the box?
A: We have no restrictions on specific colors. Send us the color samples you need and we will meet your processing needs.
Q: How many employees do you have?
A: We have about 50 employees
Q: How long can I expect to get the sample?
A: Samples will be ready for delivery in 7-15 days for new mold products. The samples will be sent to you via express and arrive in 3-5 days. You can use your own express account or prepay us if you do not have an account.
Q: Can you accept customized packaging?
A: Yes, we can make customized packaging according to your requirements.
Shipping and Packaging
By default, our packaging method is foam plus carton, and the courier is EMS or DHL. In addition, we can also choose specific courier and packaging methods according to customer requirements. We can also do customs clearance for you and provide DDP terms.
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