Electropolishing (electrolytic polishing) is a surface finishing process in which the metal part is connected as the anode in a suitable electrolyte and metal ions are removed from the surface in a controlled manner by electric current. Unlike mechanical polishing, it does not embed material into the surface, does not create heat effects and does not distort the surface structure.
What Does It Deliver?
- Reduced micro-roughness: Surface peaks are selectively dissolved, producing a smooth, bright surface.
- Improved cleanability: Dirt, product residues and microorganisms adhere less to the surface.
- Deburring and mark removal: Micro-burrs, weld and spot-weld marks are removed in the same process.
- Passivation: On stainless steels, the chromium-rich passive layer is strengthened and corrosion resistance is maximised.
- Metallurgically clean surface: A surface free of embedded particles and contamination is obtained.
Applications
Electropolishing is an indispensable process in industries with particularly high requirements for corrosion resistance, hygiene and cleanability, such as food and beverage, pharmaceutical and biotechnology, medical devices, chemical processing, semiconductor and vacuum technology.
Contact our technical team for electrolyte and process support suited to your material and target surface quality.