Surface Finishing for Copper C110 (ETP Copper)

Copper surface finishing prevents tarnishing and oxidation while maintaining electrical/thermal properties. Plating and coatings must be selected carefully to preserve conductivity where needed.

Recommended Machining Parameters

ParameterValue
Achievable Tolerances±0.01 mm (finished)
Surface FinishRa 0.2-1.6 μm
Cutting SpeedN/A
Feed RateN/A
Tooling RecommendationsN/A — surface finishing process

Expert Machining Tips

1

Tin plating for solderability and corrosion protection

2

Silver plating for high-frequency applications

3

Nickel plating for general protection

4

Clear coat for display parts

Common Parts Made

Tin-plated terminals

Silver-plated waveguides

Nickel-plated heat sinks

Clear-coated display pieces

Machining Challenges

  • Copper oxidizes rapidly without protection
  • Some coatings reduce conductivity
  • Pre-cleaning critical for plating adhesion

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