微细电火花加工脉冲电源及其脉冲控制技术

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摘要为了提高微细电火花加工效率，通过分析微细电火花加工特点，改进了主放电回路，设计了一种基于现场可编程门阵列（FPGA）的微细电火花加工脉冲电源.该电源集成了放电状态检测功能，能够判断每一个脉冲的放电状态，并及时切断有害脉冲.设计了应用于微细电火花加工的清扫脉冲回路，可在极间加载高能量窄脉宽的清扫脉冲，以清除积聚在极间的加工屑.利用该电源在桌面式微细电火花加工机床上进行了微细深孔加工实验和微细孔极限加工实验，取得了较好的加工效果.

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Abstract：Aiming at improving the efficiency of micro electrical discharge machining (EDM), the characteristics of micro-EDM was analyzed, the main discharge circuit was improved, and a pulse generator for micro-EDM based on FPGA was developed. The function of gap status detection is integrated that every single pulse can be detected and the harmful discharge pulse can be cut off in time. A sweep pulse circuit was designed. The debris can be evacuated out of the discharge gap by the exploding effect of the sweep pulses, and the gap status can be improved. With this pulse generator, a preferable result is achieved in the experiment of machining of a deep micro-hole on a CNC controlled desktop micro-EDM machine.

收稿日期: 2011-02-28 出版日期: 2011-11-30

ZTFLH:

TG661

基金资助:

国家自然科学基金资助项目（50635040），国家高技术研究发展计划（863）项目（2009AA044205）

引用本文:

蒋毅，赵万生，顾琳，康小明. 微细电火花加工脉冲电源及其脉冲控制技术[J]. 上海交通大学学报（自然版）, 2011, 45(11): 1684-1689.

链接本文:

http://www.qk.sjtu.edu.cn/jsjtunc/CN/Y2011/V45/I11/1684

［1］宋博岩, 刘明宇. 微细电加工脉冲电源的研究进展［J］. 电加工与模具, 2007(2):3033.

SONG Buyan, LIU Mingyu. Development of pulse generator for micro electromachining［J］. Electromachining & Mould, 2007(2):3033.

［2］高毅. 基于电火花加工机床脉冲电源的研究现状与发展趋势［J］. 科技信息，2008(6):7879.

GAO Yi. Summary on development of EDM pulse generator［J］. Science & Technology Information, 2008(6):7879.

［3］Zeng W L, Wang Z L, Gao Q, et al. Study on technology of microEDM with lower working voltage［J］. Materials Science Forum, 2007(532533):225228.

［4］霍孟友, 艾兴, 张建华. 电火花精微加工脉冲电源设计［J］. 新技术新工艺, 1999(6):35.

HUO Mengyou, AI Xing, ZHANG Jianhua. Design of the micro EDM pulse generator［J］. New Technology & New Process, 1999(6):35.

［5］Jia B X, Zhao W S, Wang Z L, et al. Study to enhance the precision of microEDM［J］. Key Engineering Materials, 2007(339):2631.

［6］贾宝贤. 微细特种加工系统及加工技术的研究［D］. 哈尔滨: 哈尔滨工业大学机械学院, 2005.

［7］吴胜华, 张成胜, 钟炎平. 高压悬浮驱动器IR2110的原理和扩展应用［J］. 电源技术应用, 2002(7):348351.

WU Shenghua, ZHANG Chengsheng, ZHONG Yanping. Principle and extending applications of HV floating driver IR2110［J］. Power Supply Technologies and Applications, 2002(7):348351.

［8］沈洪. 电火花成型加工技术的新发展［J］. 模具工业, 2000(4):5556.

SHENG Hong. New development of EDM forming technology［J］. Die & Mould Industry, 2000(4):5556.