目的 通过电化学光整加工，在改善车削零件表面粗糙度的同时，有效去除工件边缘两侧方向的微小毛刺，提高零件表面的完整性。方法 在扫描式阴极电化学光整加工能实现表面良好光整加工效果的参数范围内，通过改变阴极局部形状，改变毛刺部位的电场分布，进而改变其材料去除速度，实现毛刺去除。对不同形状阴极条件下，毛刺表面的电流密度分布及毛刺顶端和底部的电流密度差值进行仿真分析，得到使毛刺高度值下降较快的阴极形状。对工件进行扫描式阴极电化学光整加工，获得表面粗糙度Ra与毛刺高度值的变化规律。结果 使用凸圆角阴极时，毛刺顶端和底部的电流密度差值较大，去除效率较高。Ra值在加工时间为16~18 min时出现拐点，加工20 min时，Ra值由2.76 μm降低至0.32 μm;毛刺高度值在加工时间为10~14 min时出现拐点，加工20 min时，从17.10 μm降低至2.64 μm，与表面粗糙度Rz值为同一量级。结论 通过改变阴极形状，在电化学光整加工过程中能有效降低车削工件边缘两侧方向的微小毛刺，实现零件使用性能的提高，具有实际应用中的可行性。

Electrochemical finishing can improve the surface roughness of turning parts and effectively remove micro two side-direction burr on the edge of the workpiece, so as to improve the surface integrity of workpiece. In the parameter range that electrochemical finishing with the moving cathode can achieve good surface finishing effect, the electric field distribution at the burr part is changed by changing the shape of the cathode, and then the material removal speed is changed to achieve burr removal. The current density distribution on the burr surface and the difference between the current density at the top and bottom of the burr are simulated and analyzed under the conditions of different shapes of cathode, and the cathode shape that makes the burr height decrease rapidly is obtained. The workpiece is processed by electrochemical finishing with the moving cathode, and the variation law of surface roughness Ra value and burr height value is obtained. When the convex fillet cathode is used, the current density difference between the top and bottom of the burr is large, and the burr removal efficiency is high. The surface roughness Ra value has an inflection point when the processing time is within the range of 16~18 min, and the Ra value is reduced from 2.76 μm to 0.32 μm after 20 min; The burr height value has an inflection point when the machining time is within the range of 10~14 min, and it is reduced from 17.10 μm to 2.64 μm after 20 min. It is the same order of magnitude as the surface roughness Rz value. By changing the cathode shape, the micro two side-direction burrs on the edge of the turning workpiece can be effectively reduced in the process of electrochemical finishing, and the service performance of the parts can be improved. This method is feasible in practical application.