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中文摘要：
为提高管电极电解加工的稳定性,对管电极电解加工的极间流场进行建模仿真,分析底面流场分布与加工稳定性的关系。仿真所得到的底面压强分布变化规律表明,侧面间隙、底面间隙以及电解液流速均对底面流场分布有重大影响,从而影响管电极电解加工的过程稳定性。结合仿真分析,通过对影响加工稳定性的主要工艺参数,如绝缘层的涂覆厚度、工具进给速度、电解液供液压力进行优化,减少深小孔加工中火花、短路等现象的发生。采用优化的参数,利用群电极成功加工出深宽比为2的7×7小孔阵列,加工过程稳定,孔径均匀。
英文摘要：
For the purpose of improving the process stability of electrochemical drilling（ECD） ,a flow model of the electrolyte along the machining gap is established;the relationship between the electrolyte flow along frontal gap and the process stability is also analyzed. The flow model shows that the side gap,frontal gap and electrolyte flowrate have remarkable influence on the pressure distribution along the frontal machining gap. The related experiments are conducted on the basis of model analysis. Process parameters such as insulation thickness,tool feed rate,and electrolyte pressure are studied and optimized. With optimized parameters,spark and short circuit during the machining process are diminished. Small holes of 7×7 arrays with aspect ratio of 2 are machined by multiple electrodes with good uniformity and stability.
同期刊论文项目
同项目期刊论文
Experimental Investigation on Complex Structures Machining by Electrochemical Micromachining Technol
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