Our Electropolishing Services
Electrochemical surface finishing for enhanced smoothness, cleanliness, corrosion resistance, and bright appearance.
What is Electropolishing?
Electropolishing (also called electrochemical polishing or anodic brightening) is a sophisticated metal finishing technique that:
Perfectly smooths surfaces at microscopic level
Removes all micro-burrs and sharp edges
Creates protective chromium-rich passive layers Ideal for stainless steel (300 series), aluminum alloys, copper, and other non-ferrous metals, this technology produces ultra-clean, contaminant-free surfaces with Ra 0.1-0.4μm finishes.
Electropolishing Advantages
- Superior Surface Quality - Removes 5-20μm surface layer eliminating embedded contaminants Enhanced Corrosion Resistance - Forms protective oxide layers meeting ASTM B912 standards
- Hygienic Benefits - Exceeds FDA and EHEDG requirements for cleanability
- Dimensional Stability - Maintains ±0.02mm tolerances while improving surfaces
- Stress Relief - Eliminates 90% of machining stresses that cause fatigue failure
- Complex Geometry Handling - Perfectly finishes internal channels and intricate features
Notes
- Existing deep scratches (>25μm) may remain visible post-processing
- Ferromagnetic materials (400-series stainless, carbon steels) cannot be treated
- Surface defects may require mechanical pre-treatment
- Not suitable for plated or coated components
Electropolishing Applications
- Medical: Surgical instruments & implant finishing
- Semiconductor: Wafer handling components
- Food Processing: Sanitary piping systems
- Aerospace: Hydraulic system components
- Automotive: Fuel injection parts