同步超声振动调制微细放电-电解加工技术  

Research on Micro Electro-discharged & Electrolysis Machining Technology Modulated by Synchronizing Ultrasonic Vibrating

作　　者：朱永伟[1] 邵健[1] 苏楠[1] 云乃彰[2] 

机构地区：[1]扬州大学机械工程学院,扬州225127 [2]南京航空航天大学机电学院,南京210016

出　　处：《机械工程学报》2014年第1期185-192,共8页Journal of Mechanical Engineering

基　　金：国家自然科学基金资助项目(51075355)

摘　　要：对超声频振动与微细电加工电源的'开、断'方式进行分析、探讨,研制脉冲电源斩波器,用激光传感器实时测量超声振动,可得斩波脉冲,能对电源进行有序'开、断'控制,实现超声振动与电源'开、断'实时同步;完善同步超声复合微细电加工系统;采用幅值6 V以下脉冲电压、低电导率电解液,进行同步超声振动微细电加工机理及试验研究,通过对超声、超声脉冲电解及同步超声脉冲电解加工结果的对比分析,验证同步超声电解加工方式技术优势;采用复合乙醇工作液、微细半导体混粉,可实现超声调制放电-电解复合微细加工,在保证加工精度、表面质量同时,提高加工过程稳定性与加工效率。The synchronous mode between ultrasonic vibrations and micro electrical machining power is analyzed and explored. The power chopper is designed and made, based on the ultrasonic vibration parameters detected by the high-speed micro-displacement laser sensor, the chopper pulses are given, which may turn on and turn off the micro electrical machining power, so that orderly synchronization can be fulfilled between the micro electrical machining power and the ultrasonic vibration in real-time way, and the electrical machining system is improved. Using high-frequency pulse voltage that amplitude is less than 6 V, the low conductivity passivation electrolyte, the mechanism tests are carried, by comparing the test results of a few machining ways, such as the single ultrasonic machining, the ultrasonic direct current, the ultrasonic electrolysis and ultrasonic pulse synchronization electrochemical machining, the technical advantages of synchronous ultrasonic machining mode are verified, which can improve the machining accuracy and the surface quality. Using the compound alcohol working fluid mixed micro-powder with semiconductivity, by the synchronous ultrasonic modulation, the ultrasonic combined electro-discharged ＆ electrolytic machining can be fulfilled, the stability and productivity may be improved, at the same time to ensure the accuracy and the surface quality.

关 键 词：超声振动 同频同步 斩波器 电解-放电 微细加工 

分 类 号：TG66[金属学及工艺—金属切削加工及机床]