The basic principle of electrolytic polishing is the same as that of chemical polishing, that is, the surface is smooth by selectively dissolving the tiny protrusions on the surface of the material. Compared with chemical polishing, the effect of the cathode reaction can be eliminated, and the effect is better.
The electrochemical polishing process is divided into two steps:
(1) Macro leveling The dissolved product diffuses into the electrolyte, and the surface roughness of the material decreases, Ra> 1 μm.
(2) Low light leveling Anode polarization, surface brightness is improved, Ra <1μm.