Precision Anodizing Services for CNC Machined Parts

Enhancing Functionality & Aesthetics Through Advanced Surface Treatment

Understanding Anodizing: More Than Just Surface Deep

Anodizing creates a protective aluminum oxide layer through electrochemical processes, delivering:

• Enhanced hardness - Surface hardness increases from 100-200 HV to 300-700 HV

• Superior corrosion resistance - 10-100x improvement over bare aluminum

• Excellent thermal stability - Maintains properties up to 2000°C

• Perfect painting base - Ideal preparation for paints and adhesives

Available Anodizing Colors & Finishes

Standard Color Options

• Clear Anodizing - Maintains natural aluminum appearance

• Black Anodizing - Most popular for industrial applications

• Gold Anodizing - Premium appearance for consumer products

• Red/Blue/Green - Custom colors for branding needs

• Natural Colors - Chromate (gold-ish) or phosphoric (gray-green) processes

All colors achieved through certified organic dyes or inorganic pigments

Anodizing Process Comparison

Type II (Standard Anodizing)

• Thickness: 5-25 μm

• Hardness: 300-500 HV

• Cost: $0.50-2.00 per square decimeter

• Best for: Decorative parts, consumer products, general protection

Type III (Hard Anodizing)

• Thickness: 25-100+ μm

• Hardness: 500-2500 HV

• Cost: $2.50-8.00 per square decimeter

• Best for: Military equipment, wear surfaces, extreme environments

Design Considerations for Anodizing

For Best Results:

• Radius all edges - Prevents burning during processing

• Avoid deep cavities - Ensures even coating distribution

• Specify masking - Protect critical dimensions and tolerances

• Surface finish - Machine to Ra 0.8-1.6 μm for optimal results

Dimensional Changes:

• Coating grows 50% inward and 50% outward

• Example: 25 μm coating adds 50 μm to diameter

• Critical tolerance parts may require post-processing

Quality Assurance & Compliance

Our Quality Standards:

• Coating thickness: X-ray fluorescence testing

• Hardness verification: Micro-hardness testing

• Adhesion testing: ASTM B571 tape test compliance

• Corrosion resistance: Salt spray testing per ASTM B117

Industry Certifications:

• MIL-A-8625 military specifications

• AMS 2468 aerospace standards

• ISO 7599 international quality standards

• ASTM B580 automotive specifications

Get Instant Quote or Technical Support

We Provide:

• 48-hour quotation turnaround

• Free design for manufacturability analysis

• Material selection guidance

• Sample processing available

Why Choose Our Anodizing Services?

• 12 different anodizing processes available

• Quick 48-hour quotation turnaround

• ISO 9001 certified quality system

• 30+ years of aerospace experience

• Competitive pricing with volume discounts

Request your free quote today and see how our anodizing services can enhance your CNC machined parts!