Customized Anodizing CNC Milling Machine Parts for Industrial Equipment
Service Progress for Customized Anodizing CNC Milling Machine Parts
1. Initial Communication and Design Analysis
Submission of Requirements: The client provides the part's 3D CAD model (e.g., STP or IGES files) and 2D technical drawings. The drawings must detail dimensional tolerances, surface roughness, material specifications, and the required anodizing type (e.g., standard or hardcoat) and color.
Design for Manufacturability (DFM) Analysis: The engineering team evaluates the design's feasibility, with specific focus on both milling and anodizing. They check if the geometry is suitable for CNC milling and assess if any deep holes, sharp angles, or complex internal cavities might affect the uniformity of the anodized layer.
2. Material Selection and Sourcing
Alloy Matching: For anodizing, alloys like 6061, 6063, or 7075 are typically chosen because they produce high-quality anodized layers. The team will recommend the most suitable material based on the part's strength requirements and desired anodizing finish.
Quality Assurance: Materials are sourced from reliable suppliers and come with a material certificate to ensure compliance with standards, which is the foundation for subsequent processing.
3. Precision CNC Milling
Programming and Setup: A professional CAM programmer converts the CAD model into the G-code that the CNC machine can execute. The machine is set up with the correct tools and cutting parameters to ensure the part's dimensional accuracy and surface finish.
Milling Operation: The raw material is processed on a CNC milling machine through operations like milling, drilling, and tapping to create the required geometry. The process is closely monitored to prevent burrs and oil residue, which are crucial for preparing the surface for anodizing.
4. Pre-treatment and Anodizing
Cleaning and Degreasing: This is the most critical step before anodizing. The parts undergo multiple chemical cleaning procedures to completely remove cutting fluid, grease, and fingerprints from the surface, ensuring the anodized layer can adhere uniformly.
Anodizing Process:
- Electrolysis: The part is submerged in a specific electrolyte solution (e.g., sulfuric acid) and an electric current is applied to form a porous oxide film on the aluminum surface.
- Coloring (Optional): If a specific color is required, the part is immersed in an organic dye after the oxidation process, allowing the porous layer to absorb the color.
- Sealing: Finally, the part undergoes a sealing treatment in hot water or a special solution to close the pores, which enhances corrosion and wear resistance.
Hard Anodizing (Type III): For industrial parts that require extremely high wear resistance, Hard Anodizing is used, which produces a thicker, harder oxide layer.
5. Quality Control and Inspection
Dimensions and Tolerances: Precision equipment such as calipers and Coordinate Measuring Machines (CMMs) are used to re-measure the part's dimensions, ensuring the anodized layer does not cause it to be out of tolerance.
Surface Quality Inspection: Specialized tools like anodizing thickness gauges and colorimeters are used to check the layer thickness, color uniformity, and wear resistance to ensure they meet the client's specifications.
6. Packaging and Delivery
Protective Packaging: Parts are individually or collectively packaged using bubble wrap, foam, or custom trays to protect the anodized layer from scratches or collisions during shipping.
On-Time Delivery: The products are delivered on schedule to meet the client's production timeline.
Common Materials for Customized Anodizing CNC Milling Machine Parts
1. Aluminum Alloys
- 6061: Good strength and machinability, widely used in structural parts
- 6063: Excellent surface finish, suitable for anodizing and decorative components
- 7075: High strength, used in aerospace, defense, and precision equipment
- 5052: Strong corrosion resistance, suitable for housings and enclosures
2. Stainless Steel
- 304: General-purpose stainless steel with good strength and corrosion resistance.
- 316: Superior corrosion resistance, ideal for harsh environments
Note: Stainless steel cannot be anodized; instead, it is treated by polishing, passivation, or plating
3. Titanium Alloys
Lightweight, high strength, excellent for aerospace and medical applications. Can be anodized to create colorful oxide surface layers.
4. Copper
Excellent electrical and thermal conductivity. Commonly used for electrical contacts and heat dissipation parts. Surface treatments include plating or anti-oxidation coating (not anodizing).
5. Brass
Good machinability, corrosion resistance, and aesthetic appearance. Often used for decorative, plumbing, and electrical parts. Typically finished with plating or coating rather than anodizing.
Why Choose Waltay for Customized Anodizing CNC Milling Machine Parts?
- Extensive CNC Machining Capabilities: Advanced 3-axis, 4-axis, and 5-axis CNC milling machines ensure high precision and complex part production.
- Professional Surface Treatment: In-house anodizing services with multiple color options, plus alternative finishes such as powder coating, plating, and polishing.
- Material Flexibility: Expertise in machining a wide range of materials: Aluminum (6061, 6063, 7075, 5052), Stainless Steel (304, 316), Titanium, Copper, and Brass.
- Strict Quality Control: ISO-standard inspection process with CMM, hardness, and surface roughness testing to guarantee dimensional accuracy and durability.
- Customization & OEM/ODM Service: Tailored solutions according to customer drawings, prototypes, or specific industry requirements.
- Fast Lead Time & Global Delivery: Efficient production and logistics system to support urgent orders and worldwide shipping.
- Trusted by Industrial Customers: Widely applied in industrial equipment, automation machinery, aerospace, automotive, electronics, and medical devices.
Waltay specializes in custom CNC machined parts for over 15 years. We excel at making high precision metal and plastic components. We also provide one-stop services such as part design, prototypes, mold making, plastic injection and part assembling to better meet customers' needs. Besides aluminum CNC machined parts, we also provide stainless steel, ABS, PC, PA, PP and POM CNC machined parts which can be widely used in cables, sensors, motors, connectors, etc.
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