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为了提高工件材料蚀除的定域性,对裸阴极、侧壁绝缘阴极和缩进阴极进行了研究.以阴阳两极间电解液为研究对象,建立电场模型,通过数值模拟获得加工间隙中电位和电流密度分布,研究阴极结构对微孔进口形状精度的影响.根据模拟结果,分析缩进阴极电解加工微孔时,工艺参数对加工精度和加工效率的影响,优选最佳工艺参数.结果表明,采用优选参数缩进深度50μm,加工电压5V,进给速度3μm/s,能获得良好的加工精度.
In order to improve the localization of the workpiece material, the cathodic cathodes, the cathodic insulating cathodes and the cathodic cathodes were studied.The electric field model was established by taking the electrolyte between the anodic and cathodic electrodes as the research object, and the potential and The current density distribution and the influence of the cathode structure on the shape precision of the micro-hole inlet were studied.According to the simulation results, the influence of the process parameters on the machining precision and the processing efficiency was analyzed when the micro-hole was recessed in the cathodic electrolysis process.The optimum process parameters were optimized.The results showed that, Using the preferred parameters indentation depth 50μm, processing voltage 5V, feed rate 3μm / s, can get good processing accuracy.