| 甚高频共振式脉冲源放电蚀除 |
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| 引用本文： | 王锋,张勇斌,刘广民,王卿,袁伟然,胡波.甚高频共振式脉冲源放电蚀除[J].中国机械工程,2019,30(20):2439. |
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| 作者姓名： | 王锋 张勇斌 刘广民 王卿 袁伟然 胡波 |
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| 作者单位： | 中国工程物理研究院机械制造工艺研究所，绵阳，621900 |
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| 基金项目： | 国家自然科学基金资助项目(51475739);
四川省科技计划资助项目(2017GZ0366,2018JY0620) |
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| 摘 要： | 针对传统微细电火花脉冲电源普遍存在的放电频率低、脉宽较大、纳米级高效蚀除能力难以日益提高的问题，设计出了一种基于电路共振原理的甚高频微能脉冲源,该脉冲源可产生放电频率55 MHz、电压峰峰值220 V的开路电压波形，电压脉宽可压缩至9.1 ns。进行了不同开路电压下的放电实验，获得了各实验条件下的放电波形。实验结果证明所设计的甚高频微能脉冲源具有良好的加工工艺性能。
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| 关 键 词： | 微细电火花加工 甚高频 电路共振 重铸层 表面粗糙度 |
Discharge Erosion of VHF Resonant Micro EDM Pulse Generators |
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| WANG Feng,ZHANG Yongbin,LIU Guangmin,WANG Qing,YUAN Weiran,HU Bo.Discharge Erosion of VHF Resonant Micro EDM Pulse Generators[J].China Mechanical Engineering,2019,30(20):2439. |
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| Authors: | WANG Feng ZHANG Yongbin LIU Guangmin WANG Qing YUAN Weiran HU Bo |
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| Affiliation: | Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics,Mianyang, Sichuan, 621900 |
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| Abstract: | Aiming at the problems of low discharge frequency, large pulse width, and high-efficiency erosion ability at the nanoscale difficult to meet the increasing demands which were common in traditional micro-EDM pulse generators, a VHF micro energy pulse generator was designed based on principle of circuit resonance. The open circuit voltage waveform with a discharge frequency of 55 MHz and a peak voltage of 220 V was generated by the VHF resonant pulse generator, and the voltage pulse width was compressed to 9.1ns. Discharge experiments under different open circuit voltages were carried out, and the discharge waveforms under various experimental conditions were obtained. The experimental results show that the VHF resonant pulse generator has good processing performance. |
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| Keywords: | micro electrical discharge machining(micro-EDM) very high frequency(VHF) circuit resonance recast layer surface roughness |
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