内冲液电火花加工弧柱运动的观测研究  

Observation of Arc Movement in inner-Flushing EDM

作　　者：蒋毅 刘美华 高忠峰 国枝正典 JIANG Yi;LIU Meihua;GAO Zhongfeng;KUNIEDA Masanori(School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China;Department of Precision Engineering,The University of Tokyo,Tokyo 1138656,Japan)

机构地区：[1]江南大学机械工程学院,江苏省食品先进制造装备技术重点实验室,江苏无锡214122 [2]东京大学工学系研究科精密工学专攻,日本东京1138656

出　　处：《电加工与模具》2019年第5期16-19,共4页Electromachining & Mould

基　　金：国家自然科学基金资助项目(51675233)

摘　　要：对内冲液条件下电火花加工放电弧柱的运动行为特征进行观测研究,间接观测了不同电流和脉宽条件下单脉冲放电产生的电蚀坑参数,并通过用高速摄像机直接观测了弧柱的运动情况。结果表明:冲液流速、峰值电流和脉冲宽度都会影响电弧柱的移动距离;在固定的脉宽和冲液流速条件下,弧柱的移动距离在某个峰值电流时达到最大。The movement characteristics of the discharge arc column in inner-Flushing EDM were observed and studied. Parameters of craters caused by single-pulse discharge using different current and pulse width were observed indirectly. Arc column movement was observed directly by a high speed camera. The results show that the flow velocity,peak current and pulse width can all affect the moving distance of the arc columns. With a certain pulse width and flushing velocity,the moving distance of arc column reaches the maximum at a certain peak current.

关 键 词：冲液 电蚀坑 电弧运动 高速摄像 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]