Powder Mixed near Dry Electrical Discharge Machining

Powder Mixed near Dry Electrical Discharge Machining
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DOI：
10.4028/www.scientific.net/amr.500.253
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发表时间：
2012-04
期刊：
Advanced Materials Research
影响因子：
--
通讯作者：
X. Bai;Q. Zhang;Tian T. Li;Jian Hua Zhang
X. Bai;Q. Zhang;Tian T. Li;Jian Hua Zhang
中科院分区：
其他
文献类型：
--
作者：
X. Bai;Q. Zhang;Tian T. Li;Jian Hua Zhang

文献摘要

相似文献

提出了一种混粉近干式电火花加工方法，即采用气-液-粉三相混合物作为电介质进行材料去除。与干式电火花加工相比，PMND-EDM具有更高的材料去除率。分析了PMND-EDM的加工机理，阐明了PMND-EDM提高MRR的原因。分别在压缩空气和三相介质中进行了对比实验。MRR已计算。用示波器测得放电电压波形。结果表明，三相介质可以有效地提高磁电阻率。
Powder mixed near dry electrical discharge machining (PMND-EDM), which uses gas-liquid-powder mixture as three phase dielectric medium to remove materials, is proposed. Compared with dry EDM, much higher material removal rate (MRR) is achieved in PMND-EDM. The mechanism of PMND-EDM is analyzed and reasons for its MRR improvement are illustrated. Comparative experiment is done in compressed air and three phase dielectric medium, respectively. MRR is calculated. And discharge voltage waveforms are obtained by oscilloscope. It is shown that three phase dielectric medium can improve MRR effectively.