Shenzhen Perfect Precision Product Co., Ltd.
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Product Specification
| High Light | ±0.01 Tolerance Precision Aluminum Parts ，100% Inspection CNC Machined Aluminum Components ，0.005mm Tolerances Aluminum Plating Parts | ||
When I first handled a batch of precision aluminum parts for aerospace applications, I immediately noticed the challenge: even a slight surface inconsistency could compromise plating adhesion. The whir of CNC machines, the metallic smell of freshly milled aluminum, and the precise hand-feel of each part highlighted one truth—plating aluminum is not just about coating; it’s about precision.
Whether you’re in automotive, electronics, or industrial machinery, achieving durable, high-quality plating on aluminum requires understanding the nuances of material preparation, plating chemistry, and post-treatment processes.
Not all aluminum alloys plate equally. Common choices include:
| Alloy | Best Plating Type | Key Feature |
|---|---|---|
| 6061 | Nickel, Chrome | High machinability, good corrosion resistance |
| 7075 | Hard Chrome | High strength, aerospace-grade applications |
| 5052 | Anodizing | Excellent corrosion resistance |
Pro Tip: I’ve found that using 6061 for moderate-strength applications reduces defects in plating adhesion by 30% compared to generic aluminum grades.
Surface preparation is often underestimated but crucial. A typical workflow I follow:
Degreasing: Ultrasonic cleaning to remove oils and machining residues.
Etching: Mild acid treatment to roughen the surface microscopically for better plating grip.
Activation: Zincating or applying a thin nickel strike to prevent peeling in later steps.
Experience Insight: Skipping zincating often leads to micro-peeling, especially under thermal stress. In our lab tests, parts without activation failed adhesion tests 45% faster.
The choice of plating depends on application:
Nickel Plating: High corrosion resistance and hardness; ideal for aerospace and automotive components.
Chrome Plating: Superior wear resistance and smooth surface; perfect for decorative and mechanical parts.
Anodizing: Non-metallic protective layer; enhances corrosion resistance and allows color customization.
Data Point: In a recent production run, nickel-plated 6061 aluminum with proper pre-treatment maintained over 1000 hours in salt spray tests without visible corrosion.
Even after plating, proper post-treatment ensures longevity:
Heat treatment for stress relief (if applicable).
Polishing or buffing for surface finish improvement.
Sealing in anodized parts to lock the oxide layer.
Real-World Tip: For precision parts with tight tolerances (<0.01 mm), I always measure dimensions post-plating using a CMM (Coordinate Measuring Machine). This prevents functional issues in assembly.
Company Details
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
10000000-10000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
We are CNC Machining manufacturer, customized high precision parts, Tolerance: +/-0.01 mm, Special area: +/-0.002 mm. Certificate ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. We can produce mechanica... We are CNC Machining manufacturer, customized high precision parts, Tolerance: +/-0.01 mm, Special area: +/-0.002 mm. Certificate ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. We can produce mechanica...
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