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| 微细电火花加工微孔时加工作用力影响 | |
| 引用本文： | 李剑忠,张余升,栾纪杰,余祖元.微细电火花加工微孔时加工作用力影响[J].大连理工大学学报,2012,52(1):35-39. |
| 作者姓名： | 李剑忠 张余升 栾纪杰 余祖元 |
| 作者单位： | 1. 大连理工大学机械工程学院,辽宁大连,116024 2. 上海航天设备制造总厂,上海,200245 3. 无锡微研有限公司,江苏无锡,214072 |
| 基金项目： | 国家自然科学基金资助项目，"八六三"国家高技术研究发展计划资助项目 |
| 摘 要： | 在用微细电火花加工大深径比微孔的过程中发现,相同加工条件下工具电极越长则加工孔径越大.为了解释这一现象,采用经典Bernoulli-Euler杆件理论,针对加工作用力对电极变形影响的3种情况,对工具电极的变形量进行了求解,结果表明计算值与实验结果非常接近,从理论上揭示了加工作用力对微孔加工过程的影响.加工中随电极长度的... |
| 关 键 词： | 微细电火花加工 微孔 加工作用力 理论模型 |
Influence of reaction force on micro-hole drilling by micro-EDM |
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| LI Jianzhong,ZHANG Yusheng,LUAN Jijie,YU Zuyuan.Influence of reaction force on micro-hole drilling by micro-EDM[J].Journal of Dalian University of Technology,2012,52(1):35-39. | |
| Authors: | LI Jianzhong ZHANG Yusheng LUAN Jijie YU Zuyuan |
| Institution: | 1.School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China; 2.Shanghai Aerospace Equipments Manufacture,Shanghai 200245,China; 3.Wuxi Micro Research Co.Ltd.,Wuxi 214072,China |
| Abstract: | The diameter of micro-hole varies proportionally with the length of electrode when a micro-hole with high aspect ratio is drilled by micro-electrical discharge machining(EDM) even under the same machining conditions.To explain this phenomenon,the theory of classic Bernoulli-Euler rod is used to study the relationship between the reaction force during micro-hole drilling by micro-EDM and the deflection of electrode under three reaction force conditions.Theoretical values are very close to experimental results.It is clarified that the bending of an electrode increases with an increase of the electrode length,resulting in different diameters of micro-holes using the same diameter of electrode but in different lengths. |
| Keywords: | micro-EDM micro-hole reaction force theoretical model |
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