| 皮焦级超微能电火花加工电源技术研究 |
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| 引用本文： | 李文卓,刘晋春,赵万生,于云霞. 皮焦级超微能电火花加工电源技术研究[J]. 哈尔滨工业大学学报, 2009, 41(1): 197-199,203 |
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| 作者姓名： | 李文卓 刘晋春 赵万生 于云霞 |
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| 作者单位： | 烟台大学机电与汽车工程学院,烟台264005;哈尔滨工业大学机电工程学院,哈尔滨150001;哈尔滨工业大学机电工程学院,哈尔滨,150001;上海交通大学机械与动力工程学院,上海,200240;烟台大学机电与汽车工程学院,烟台,264005 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金，山东省自然科学基金 |
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| 摘 要： | 为了解决长期困扰微细电火花加工的降低单脉冲放电能量难题,对RC脉冲电源放电特性进行了试验研究.通过一系列实验证实了RC脉冲电源放电时没有电火花维持电压现象,电火花加工可以在低于常规电火花维持电压的低电压下进行,此时的单脉冲放电能量最小可达2.5×10-12J,使微细电火花单脉冲放电能量由过去的微焦耳级剧降到皮焦耳级,为实现超微能的纳米尺度电火花加工奠定了基础.在此基础上设计了一种新型可控的RC脉冲电源,并使用该电源加工出了直径仅为Φ4.5μm的微轴和直径仅为Φ8μm的微孔.
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| 关 键 词： | 超微能RC脉冲电源 维持电压 单脉冲放电能量 微细电火花加工 |
Pulse power supply with pico-joule energy for micro-EDM machining |
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| LI Wen-zhuo,LIU Jin-chun,ZHAO Wan-sheng,YU Yun-xia. Pulse power supply with pico-joule energy for micro-EDM machining[J]. Journal of Harbin Institute of Technology, 2009, 41(1): 197-199,203 |
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| Authors: | LI Wen-zhuo LIU Jin-chun ZHAO Wan-sheng YU Yun-xia |
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| Affiliation: | 1(1.School of Electromechanical Automobile Engineering,Yantai University,Yantai 264005,China;2.School of Mechatronics Engineering,Harbin Institute of technology,Harbin 150001,China;3.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | To solve the problem of decreasing single-pulse energy for micro-EDM machining,the discharge of RC power supply is investigated.The conclusion that no sparkle maintaining voltage exists during the discharge of RC power supply is confirmed by a series of experiments,and the micro-EDM can still run under the voltage which is below the conventional value.Thus the least single pulse energy is reduced to 2.5×10-12 J sharply,from micro-Joule energy to pico-Joule energy,which is the basis of ultra-micro energy for nanometer EDM machining.Finally,a new type of controllable RC pulse power supply was developed.A shaft with diameter of 4.5 μm and a hole with diameter of 8 μm are machined by the power supply. |
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| Keywords: | supermicro energy RC power supply maintaining voltage single pulse energy micro-EDM |
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