Electropolishing is an electrochemical process by which surface material is removed byanodic dissolution.
Electropolishing removes surface material, beginning with the high points within themicroscopic surface texture. By removing the sepoints, the electropolishing process will improve the surface finish of a metal such as stainless steel, nickel, aluminum and hastelloy, leaving a smoother and more reflectivesurface.
The benefit of electropolishing is that it delivers a smoother, more reflective surface that reduces product adhesion and improves surface clean ability. Perhaps more importantly, electropolishing preferentially dissolves free iron, inclusions, and embedded particles from the surface of the work-piece. This process improves the near surface chemistry of the material, and promotes the formation of an improved corrosion resistant surface layer. Process under the standard ASTM B 912-02.