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四、电化学加工电化学加工的设备与电火花加工有很多相似之处,但原理却不同。后者利刚电弧使工件材料熔化;前者则不存在电弧现象,利用电解作用,使工件材料从阳极上溶解于电解质内。原理类似于电镀,但与电镀相反,电化学加工是以工件为阳极,以成型样板工具为阴极;在加工过程中,不使从阳极蚀除的金属镀上阴极,以免工具变形。
Fourth, electrochemical processing Electrochemical processing equipment and EDM have many similarities, but the principle is different. The latter Li Gang arc melting the workpiece material; the former does not exist arc phenomenon, the use of electrolysis, the workpiece material from the anode dissolved in the electrolyte. The principle is similar to electroplating, but contrary to electroplating, the electrochemical machining takes the workpiece as the anode and the forming tool as the cathode. During the processing, the metal removed from the anode is not plated on the cathode to prevent the tool from deforming.