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Chemical polishing Chemical polishing is to make the material in the chemical surface of the micro-convex part of the concave part of the preferential dissolution, resulting in a smooth surface. The main advantage of this method is the high efficiency without the need for complex equipment, the ability to polish workpieces with complex shapes, the ability to polish many workpieces simultaneously. The core problem of chemical polishing is the preparation of polishing solution. The surface roughness obtained by chemical polishing is generally 10 m.Aluminum CNC Turning Supplier
Electrolytic polishing The basic principles of electro-polishing and chemical polishing the same, that is, by selective dissolution of the surface of the material slightly convex part of the surface smooth. Compared with chemical polishing, you can eliminate the impact of the cathode reaction, the effect is better. Electrochemical polishing process is divided into two steps: (1) macroscopically flat dissolved products diffuse into the electrolyte, the surface roughness of the material decreased, Ra> 1m. (2) Low-level flat anode polarization, surface brightness increased, Ra <1m.