PZT激励同步压缩放电通道微细电火花加工工艺参数对加工结果的影响  

The Effects of Micro Electro-discharge Machining Parameters Based on the Technology of PZT Excited Discharge Channel Compressed on the Machining Behaviors

作　　者：朱光[1] 张勤河[1] 杜连明[2] 张敏[1] 王侃[1] 

机构地区：[1]山东大学机械工程学院高效洁净机械制造教育部重点实验室,山东济南250061 [2]济南大学机械工程学院,山东济南250022

出　　处：《电加工与模具》2016年第2期6-10,共5页Electromachining & Mould

基　　金：国家自然科学基金资助项目(51375274)

摘　　要：提出了压电陶瓷(piezoelectric ceramic transducer,PZT)激励同步压缩放电通道微细电火花加工,目的在于改善微细电火花加工的放电环境。介绍了PZT激励同步压缩放电通道微细电火花加工原理,研究了开路电压、脉冲宽度、脉冲频率和峰值电流对其电极损耗和材料去除率的影响,并与不采用压缩通道方法的微细电火花加工进行了对比。结果表明:同等条件下,采用PZT激励同步压缩放电通道技术,提高了加工过程的稳定性和材料去除率,降低了电极损耗率,有效改善了放电环境。The technology of（piezoelectric ceramic transducer,PZT） excited discharge channel compressed micro EDM aiming for improving the conditions of micro EDM is proposed. The processing principle of PZT excited discharge channel compressed micro EDM was introduced,the influences on the open circuit voltage,pulse width,pulse frequency and the peak current on the material removal rate and the electrode wear rate were studied. Additionally,the comparison between the micro EDM which was adopted the technology of PZT excited discharge channel compressed and which did not was carried out. The results show that under the same conditions,the stability of machining process and the material removal rate are increased,the electrode wear rate is decreased and the conditions of discharge is effectively improved by adopting the technology of PZT excited discharge channel compressed micro EDM.

关 键 词：微细电火花加工 PZT激励 压缩放电通道 开路电压 脉冲宽度 脉冲频率 峰值电流 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]