机电工程技术2025，Vol.54Issue(4)：112-117,6.DOI:10.3969/j.issn.1009-9492.2025.04.019
阶梯异形孔电解加工流场仿真
Simulation of the Flow Field in Electrochemical Machining of Stepped and Irregularly Shaped Holes
摘要
Abstract
In the machining of thin-walled array stepped irregular holes,problems such as easy deformation,low efficiency,and difficulty in ensuring precision,which prevent the achievement of the desired requirements,are commonly encountered.Electrolytic machining,with its advantages of no tool wear,good surface quality,and high processing efficiency,has been adopted.However,its processing precision and stability are severely affected by the flow field.In order to address the issues of contour precision and machining stability for stepped irregular hole structures during ECM,a forward flow liquid supply method and a stepwise processing approach are proposed.Fluid modeling and simulation are performed using COMSOL software to analyze the impact of different outlet hole features(size,number,arrangement)on the uniformity of the flow field within the machining gap.The results indicate that for the first step cathode configuration,29 outlet holes with a diameter of 1 mm are used,leading to the most uniform electrolyte flow speed on the workpiece surface,with a flow speed not less than 5 m/s in the machining area.For the second step cathode configuration,19 outlet holes with a diameter of 1 mm are used,resulting in the most uniform electrolyte flow speed on the workpiece surface,with the overall electrolyte flow speed greater than 5 m/s.The cathode design meets the requirements for uniform flow field distribution and flow speed during the electrolytic machining process.关键词
阶梯异形孔/流场仿真/电解加工/流场均匀性Key words
stepped irregular hole/flow field simulation/electrochemical machining/flow field uniformity分类
矿业与冶金引用本文复制引用
李一鑫,祁圣英,刘军团,刘纪玖,陈桦,张传运..阶梯异形孔电解加工流场仿真[J].机电工程技术,2025,54(4):112-117,6.基金项目
太行国家实验室-技术研发项目(cxpt-2022-005) （cxpt-2022-005）
