磁场辅助电火花加工充磁钕铁硼的加工效果研究  

Study on Machining Effect of Magnetized NdFeB by Magnetic Field Assisted EDM

作　　者：崔家志 杨廷毅[1] 白雪[1] 龚西鹏 李丽[1] CUI Jiazhi;YANG Tingyi;BAI Xue;GONG Xipeng;LI Li(School of Mechanical Engineering,Shandong University of Technology,Zibo 255000,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255000

出　　处：《热加工工艺》2021年第18期46-50,共5页Hot Working Technology

基　　金：国家自然科学基金项目(51805302);山东省自然科学基金项目(ZR2018MEE025)。

摘　　要：针对普通电火花加工充磁钕铁硼(NdFeB)材料时,蚀除颗粒排出困难、加工效率低、加工表面质量差的问题,自行搭建磁场辅助平台。通过普通电火花加工方法和磁场辅助电火花加工方法加工充磁NdFeB材料对比试验,分析磁感应强度、峰值电流以及脉冲宽度对充磁NdFeB材料的加工效率和表面质量的影响。结果表明:采用磁场辅助电火花加工方法对充磁NdFeB材料进行加工,加工效率和表面质量均得提高。In order to solve the problems of difficulty in expelling of etched particles,low machining efficiency and poor surface quality in the conventional electrical discharge machining(EDM)of magnetized NdFeB(NdFeB)materials,a magnetic field-assisted platform was built.By the comparison experiments of the conventional EDM and the magnetic field-assisted electric discharge machining(MF-EDM)on the magnetized NdFeB materials,the influences of magnetic induction intensity,peak current and pulse duration on the MF-EDM machining efficiency and surface quality of the magnetized NdFeB were analyzed.The results show that the machining efficiency and surface quality of the magnetized NdFeB workpiece materials can significantly improve by MF-EDM processing method.

关 键 词：电火花加工 磁场 材料去除率 表面粗糙度 

分 类 号：TG132.27[一般工业技术—材料科学与工程] TG661[金属学及工艺—合金]