超声协同气膜屏蔽微细电解铣削加工技术研究  

Research on Air-shieleding Ultrasonic Assisted Electrochemical Micromilling Technology

作　　者：张瑞永 吕明 刘长顺 王明环[1] ZHANG Ruiyong;LV Ming;LIU Changshun;WANG Minghuan(School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310023

出　　处：《电加工与模具》2022年第1期39-44,共6页Electromachining & Mould

基　　金：国家自然科学基金项目(51975532)。

摘　　要：为了改善微细电解铣削加工存在的加工效率低和水跃现象导致的杂散腐蚀等问题,提出在电解加工过程中引入超声场和气流场的超声协同气膜屏蔽微细电解铣削加工技术,并探索不同加工参数对材料去除效率、工件加工质量的影响规律。结果表明:相同参数下,超声协同气膜屏蔽微细电解铣削加工的微槽平均宽度相较于超声辅助微细电解加工降低11.69%、微槽平均深度相较于气膜屏蔽微细电解加工增大28.56%,验证了该技术的加工可行性与优越性;在电压10 V、气压0.03 MPa、脉冲频率120 kHz、扫描速度0.36 mm/min、振幅8μm时,超声协同气膜屏蔽微细电解铣削加工技术能加工出精度较高、侧壁锥度较小的微槽结构。In order to solve the problems of low machining efficiency and stray corrosion caused by water jump in electrochemical micromilling technology,an air-shieleding ultrasonic assisted electrochemical micromilling technology was proposed,which introduced ultrasonic field and gas flow field into electrochemical micromilling technology,and the effects of different processing parameters on material removal efficiency and workpiece quality were explored.The result showed that under the same parameters,the average width of the micro cell of air-shieleding ultrasonic assisted electrochemical micromilling machining is 11.69%lower than that of ultrasonic assisted micro electrochemical machining,and the average depth of the micro cell is 28.56%higher than that of film-shielded electrochemical machining,which verified the feasibility and superiority of the machining.Under the conditions of 10 V of voltage,0.03 MPa of air pressure,120 kHz of pulse frequency,0.36 mm/min of scanning speed and 8μm of amplitude,the microstructure with high precision and small side-wall taper can be machined by using air-shieleding ultrasonic assisted electrochemical micromilling technology.

关 键 词：超声振动 电化学铣削 气膜屏蔽 微结构 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]