• CN：11-2187/TH
• ISSN：0577-6686

›› 2013, Vol. 49 ›› Issue (9): 184-189.

• 论文 •

### 基于PZT激励同步压缩放电通道的微细电火花加工技术

1. 山东大学机械工程学院;济南大学机械工程学院;山东大学高效洁净机械制造教育部重点试验室
• 发布日期:2013-05-05

### Discharge Channel Compressed Micro-EDM Techniques Based on PZT Excitation

DU Lianming;ZHANG Qinhe;ZHANG Jianhua;ZHANG Ya

1. School of Mechanical Engineering, Shandong University School of Mechanical Engineering, University of Jinan Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, Shandong University
• Published:2013-05-05

Abstract: In micro-EDM, the debris generated in machining process is difficult to be moved from the discharging gap, the discharge state is instability, and the material removal rate is low. A new method of piezoelectric ceramic (PZT) incentive synchronous compression discharge channel micro-EDM is presented based on the inverse piezoelectric effect of PZT piezoelectric ceramics, using a spark discharge and PZT sync pulse power. The system composition and machining principles are described, and its machining mechanism is analyzed in terms of the experiments. By the experiments, it is certificated that on the process of PZT sync compressing discharge channel machining, the state of discharge gap, the machining efficiency and quality can be improved, the throw out of debris makes easier, and then the stability of micro-EDM process is raised. A micro-hold is produced diameter in 67 μm with stable machining process by using a self-developed machining system, which indicates that this new technology has wide application prospect in the field of micro manufacturing.