型面电解加工复合磁场试验研究  

Study on ECM Compounded with Magnetci-Field for Curve Surface

作　　者：陈林[1] 王天诚[1] 范植坚[1] 

机构地区：[1]西安工业大学机电工程学院,西安710032

出　　处：《西安工业大学学报》2006年第4期326-328,共3页Journal of Xi’an Technological University

基　　金：陕西省教育厅专项项目(05JK215)

摘　　要：针对复杂型面电解加工流场设计难的问题,根据磁场和电场相互作用的原理,在电解加工装置中安置磁路,使磁场作用于作为导电介质和反应介质电解加工间隙中的流体,影响间隙中离子的分布,进而影响流场,以简化流场设计.为了提高电解加工间隙的实际磁感应强度,在夹具和阴极中的磁铁两头安置轭铁;同时分别采用磁感应强度不同的铁氧体和钕铁硼,以修正零件两头与中部流场的差异.试验表明磁场配置对减轻型面的杂散腐蚀有一定影响.To solve design difficulty of flow field of complex object of electrochemical machining （ECM）, the magnetic circuit is installed in the ECM equipment. It is interaction between electric and magnetic field that the electrolyte in the gap is influenced by. The magnetic field affects the ion distribution in the gap,then affects the flow field,finally predigests flow field design. The twain yokes are added at each end of permanent magnet in cathode and clamp to enhance magnetic induction intensity. Ferrite and Nd Fe B are adopted separately at the end and the middle of the machined workpiece to minish the difference of flow field. Experimental result shows that the collocation of magnet improves dispersion corrosions on surface of workpiece.

关 键 词：电解加工 磁场 流场设计 杂散腐蚀 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]