电极丝前置式射流电解加工铣削微槽试验研究  

Experimental Research on Milling Micro-groove by Wire-proposed Electrochemical Jet Machining

作　　者：李飘庭 傅波[1] 荆奇[2,3] 张勇斌 李建[2] LI Piaoting;FU Bo;JING Qi;ZHANG Yongbin;LI Jian(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China;Institute of Machinery Manufacturing Technology,China Academy of Engineering Physics,Mianyang 621900,China;Department of Optical Science and Engineering,Fudan University,Shanghai 200438,China)

机构地区：[1]四川大学机械工程学院,四川成都610065 [2]中国工程物理研究院机械制造工艺研究所,四川绵阳621900 [3]复旦大学光科学与工程系,上海200438

出　　处：《新技术新工艺》2020年第4期67-74,共8页New Technology & New Process

基　　金：四川省科技计划项目(2018JY0620);国防基础科研计划项目(JCKY2018212C015)。

摘　　要：射流电解加工广泛应用在航天、军工、汽车、电子等制造领域,多用来进行工件表面微结构的加工,是一种高效低成本的方法。电极丝前置式射流电解加工利用液束中的电极丝将电场集中约束在主要加工区域,相比于传统射流电解有着更高的加工效率和质量。通过搭建试验平台并在不锈钢工件表面进行微槽铣削试验,验证了该方法的实际加工效果,初步得到了电压、电极丝直径、单次进给量等参数对加工结果影响的工艺规律。当选用直径100μm侧壁绝缘的电极丝时,扫描5次可以得到槽宽最小为400μm,槽深120μm的直槽。试验结果表明,电压和加工间隙影响电流密度的大小,主要决定了加工效率和质量,而电极丝和液束的状态则决定了特征的精度和形貌。Electrochemical jet machining was an efficient and low-cost method to process micro-features on workpiece surfaces,which was widely used in aerospace,military,automotive,electronics and other manufacturing fields.Wire-proposed electrochemical jet machining(WPEJM)utilized wire to concentrate the electric field on the main processing area,which had higher efficiency and quality than that of EJM.By conducting milling experiment on the surface of stainless steel workpiece,the processing effect of WPEJM was verified,and the process laws that parameters affecting processing results were obtained.When a wire electrode with diameter 100μm and side insulated was used,a straight groove with minimum width of 400μm and depth of 120μm can be obtained by scanning five times.The results showed that voltage and machining gap affected the current density,which mainly determined the processing efficiency and quality,while the state of jet and electrode wire determined the precision and shape of the feature.

关 键 词：射流电解加工 微细加工 电极丝 微槽 深宽比 加工质量 

分 类 号：V261.5[航空宇航科学与技术—航空宇航制造工程]