微孔边缘曲线演化模型的建立与仿真  

作　　者：程锦琳 

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《科技创新与应用》2022年第29期57-60,共4页Technology Innovation and Application

摘　　要：为解决电极匀速进给加工方式下加工微孔锥度较大的问题,实现对加工间隙和微孔边缘曲线的预估计。该文从间隙控制的方法入手,在采用高频脉冲电源、侧壁绝缘的微细中空电极和高压冲液的工艺方式下,根据电极匀速进给加工实验数据建立加工过程中物理模型,根据微孔成型过程变量之间的关系建立微孔边缘曲线演化模型。利用演化模型即可预测不同电极进给速度下加工出的微孔形态。经过实际加工验证后得出,模型的准确度较高。In order to solve the problem of large taper of microhole in electrode uniform feed mode,the pre-estimation of machining clearance and microhole edge curve is realized.In this paper,starting with the method of gap control,the physical model of the machining process is established according to the experimental data of electrode uniform feed under the technology of high frequency pulse power supply,side wall insulated micro hollow electrode and high pressure flushing liquid.the evolution model of microhole edge curve is established according to the relationship between microhole forming process variables.The morphology of microholes machined at different electrode feed rates can be predicted by using the evolution model.Through the actual processing verification,it is concluded that the accuracy of the model is high.

关 键 词：微细电解加工 加工间隙 微孔边缘曲线 微细孔 微孔加工 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]