Cu-SiC复合电极电火花加工烧结NdFeB永磁体的研究  

Electrical discharge machining of sintered NdFeB magnet using electrodeposited Cu-SiC electrode

作　　者：李丽[1] 程祥[1] 李志永[1] 牛宗伟[1] 

机构地区：[1]山东理工大学机械工程学院,山东淄博255049

出　　处：《功能材料》2013年第22期3335-3337,3342,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51105235)

摘　　要：将超声波和复合电沉积技术相结合制备了Cu-SiC复合电极材料,利用SiC颗粒高熔点、高导电性的特点探索对烧结NdFeB永磁体电火花的可加工性。研究了Cu-SiC电极对NdFeB永磁体加工效率、加工效果的影响规律。结果表明SiC颗粒在火花放电中使电场产生畸变,降低了击穿电压,火花痕迹大而浅,表面粗糙度降低;同时提高了加工效率,降低了电极损耗。Cu-SiC composition electrode was made by using electrodepositing method.Electrical discharge ma-chining of sintered NdFeB magnet was studied by using high melting point and good conductivity of SiC.Machi-ning efficiency,quality and electrode erosion resistance were studied.Results show that Cu-SiC electrode could increase material removal rate,improve surface quality and decrease surface roughness and erosion resistance.

关 键 词：Cu—SiC电极 电火花加工 烧结NdFeB永 磁体 电极损耗 

分 类 号：TM273[一般工业技术—材料科学与工程]