Surface treatment is not an afterthought in high-performance manufacturing.

For precision CNC components made from titanium alloys, nickel superalloys, and other specialty metals, plating and chemical coating directly determine corrosion resistance, wear life, dimensional stability, and long-term reliability.

At Eadetech, plating and chemical coating are tightly integrated with CNC machining, inspection, and final assembly—ensuring finished parts are ready for direct installation, not secondary rework.

1. What Are Plating & Chemical Coating?

Plating and chemical coating are controlled surface engineering processes that modify the outer layer of a metal part to improve functional performance without compromising internal material properties.

Unlike painting or decorative finishes, industrial coatings are engineered layers measured in microns, specified directly on engineering drawings, and verified through inspection.

Typical objectives include:

• Corrosion resistance in aggressive environments

• Wear and friction reduction

• Electrical conductivity or insulation

• Surface hardness enhancement

• Optical or functional appearance control

2. Supported Plating & Chemical Coating Processes

Eadetech provides a range of industrial-grade coating solutions, selected based on material compatibility and tolerance requirements.

Common processes include:

• Electroless Nickel (EN) Plating

• Electroplated Nickel & Copper

• Chemical Black Oxide

• Phosphate Coating

• Passivation for stainless steel & nickel alloys

• Conversion coatings for titanium and refractory metals

📊 Insert Table 1 here

Typical Plating Thickness & Functional Impact

This table supports buyer decisions on tolerance planning, answering the common question:
“Will coating affect my fit or assembly?”

3. Coating Thickness Control & Dimensional Accuracy

For tight-tolerance CNC parts, coating thickness must be planned during machining, not guessed afterward.

Eadetech applies pre-machining allowance strategies based on coating type, ensuring final dimensions remain within specification.

📊 Insert Table 5 here

Dimensional Control Strategy for Plated CNC Parts

Engineering takeaway:
Electroless nickel and passivation are preferred for parts requiring ±0.01 mm or tighter tolerances, due to their uniform deposition characteristics.

4. Surface Hardness & Wear Performance Improvement

One of the key reasons for plating hard metals is surface durability.

While titanium and nickel alloys already offer excellent strength, selective coating can significantly improve:

• Sliding wear resistance

• Tool-contact durability

• Mating surface lifespan

📊 Insert Table 2 here

Surface Hardness Improvement After Coating

This data explains why electroless nickel is widely used in:

• Aerospace actuators

• Industrial valve components

• High-cycle mechanical interfaces

5. Corrosion Resistance in Industrial & Aerospace Environments

Corrosion resistance is often the primary functional requirement, especially for aerospace, marine, and chemical processing applications.

📊 Insert Table 3 here

Neutral Salt Spray Test Reference Data

Key insight:
Bare metal surfaces—even high-grade alloys—rarely meet long-term corrosion requirements without surface treatment.

6. Coating Compatibility with Special Materials

Specialty metals such as titanium, tantalum, tungsten, and molybdenum present unique challenges:

• Natural oxide layers

• Chemical sensitivity

• Adhesion difficulty

Eadetech applies material-specific surface preparation before coating to ensure stability and adhesion.

📊 Insert Table 4 here

Compatibility of Plating with Special Materials

This is a critical trust-building section for buyers sourcing non-standard metals.

7. Industry-Specific Coating Selection

Different industries prioritize different surface functions.
Eadetech helps clients select coatings based on real operating conditions, not generic recommendations.

📊 Insert Table 6 here

Industry Use vs Coating Selection

This table is particularly effective for B2B conversion, helping non-surface-engineers understand why a coating is specified.

8. Integrated Quality Control & Inspection

Every plated or chemically coated part undergoes:

• Visual inspection

• Thickness verification (sampling-based)

• Dimensional re-check after coating

• Adhesion and surface integrity assessment

By integrating coating with CNC machining under one supplier, risk of mismatch and tolerance stack-up is minimized.

9. Why Choose Eadetech for Plating & Chemical Coating?

• ✔ Experience with titanium, nickel superalloys, and refractory metals

• ✔ Coating planned at machining stage, not post-production

• ✔ Tight tolerance control for functional assemblies

• ✔ Small-batch and high-mix friendly

• ✔ Components delivered ready for use, not semi-finished

Plating and chemical coating at Eadetech are not outsourced blindly—they are managed as part of a complete manufacturing system, supporting demanding global customers.
Learn more about our integrated machining and surface treatment capabilities at https://www.eadetech.com.