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Abstract. Influence of voltage on material removal rate, surface roughness and power consumption were experimentally studied in this paper. Different polishing states were analyzed from standpoint of electricity transition on the basis of the polishing mechanism. The reason that material removal rate, surface roughness and electricity cost influenced by voltage was given. The experiments show that, material removal rate gradually decrease and velocity of surface roughness reduction gradually slow with increase of voltage. When voltage is at a range of 270-330V, the minimum of surface roughness that polishing can reach is the minimum; when voltage is 270-290V, electrical power reaches the minimum.

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