侧壁绝缘电极脉冲电解加工的实验研究  

Investigation on pulse electrochemical machining by coated electrode

作　　者：吴明[1] 郭钟宁[1] 孙涛涛[1] 罗红平[1] 宋卿[1] 

机构地区：[1]广东工业大学,广州510006

出　　处：《现代制造工程》2015年第11期11-14,共4页Modern Manufacturing Engineering

基　　金：国家自然科学基金重点项目(U1134003);国家青年科学基金资助项目(51105080);广东省自然科学基金项目(S2011040003991)

摘　　要：采用侧壁绝缘电极进行电解加工可以约束加工间隙内的电场,减小杂散腐蚀,提高定域性,有着良好的应用前景。从实验出发,利用侧壁绝缘的工具电极以Na NO3为电解液对0Cr18Ni9不锈钢进行窄缝的脉冲电解加工,观测不同脉冲电压峰值、脉冲频率与占空比下的窄缝出入口和它们的宽度差。结果表明:出入口缝宽与出入口宽度差均随着脉冲电压峰值、占空比的增大而增大,随着脉冲频率、工具电极进给速度的增大而减小。Coated electrode in electrochemical machining can improved the machining characteristics as the current in electrolyzing is limited in the machining gap. Investigated and evaluated various input parameters on the performance of coated copper plate tools in pulse electrochemical machining by the groove width difference between inlet and outlet. It was concluded that low voltage, high frequency, low ratio and high feed rate can improve the pulse electrochemical machining performance.

关 键 词：侧壁绝缘 脉冲电解加工 缝宽 

分 类 号：TH16[机械工程—机械制造及自动化]