Glossiness Charaterization of Aluminum Product Surface in the Alkaline Chemical Polishing Processes

Taking glossiness as one of evaluation index of surface roughness for aluminum alloy products, alkaline chemical polishing experiments were carried out. The glossiness of the surface of the aluminum alloy was tested by using a gloss meter and its roughness was measured by an atomic force microscopy. The experimental results showed that the higher the surface gloss of aluminum alloy, the lower the surface roughness. 5052 aluminum alloy glossiness could reach 299 Gs, and the corresponding surface roughness was 6.395 nm, while 40 g/L of ammonium molybdate was added to the polishing base liquid.