基于多工位的微细长槽电解加工的试验研究

针对如何提高微细长槽批量加工的成型精度和效率问题,将电解加工的技术应用到微细长槽的批量加工中.依据电解加工原理,以微细长槽加工的复制精度为评价指标,建立了微细长槽成型精度的模型分析,得出了影响成型精度的主要因素有：底面间隙、侧面间隙和间隙内流场均匀性,并以此为基础,分别进行了不同加工方式和阴极刀具进给速度的试验.研究结果表明,采用群电极倾斜并沿槽纵向移动的加工方式,以及在保证加工稳定的前提下通过提高阴极刀具的移动速度,可以提高微细长槽的成型精度和加工效率;该方法对于微细长槽的批量加工具有一定的指导意义.

Electrochemical machining examination based on multistage minute elongated slot

Aiming at the problem of increasing the molding precision and efficiency in batch processing of minute elongated slot,the electrochemical machining technology was applied to process minute elongated slot.Based on the principle of electrochemical machining,the molding precision model of minute elongated slot was established,and judged by its accuracy of replication.Consequently,the factors that had influence on molding precision were listed as follows：surficial gap,slide gap and internal flow field variation.According to the analysis above,the corresponding machining experiments on different processing methods and feeding speed of the cathode tool were conducted.The experimental results indicate that the molding precision and efficiency of minute elongated slot are increased by tilting multistage cathode to traverse longitudinally along the groove.In addition,the results also indicate that increasing the feeding speed of cathode tool is helpful to the molding precision and efficiency of minute elongated slot in the context of machining stability.Thus,the method above is important and significant to the batch processing of minute elongated slot.