Increasing discharge energy of micro-EDM with electrostatic induction feeding method through resonance in circuit
Increasing discharge energy of micro-EDM with electrostatic induction feeding method through resonance in circuit
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DOI：
10.1016/j.precisioneng.2016.02.002
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发表时间：
2016-07-01
影响因子：
3.6
通讯作者：
Kunieda, Masanori
中科院分区：
文献类型：
--
作者：
Abbas, Norliana Mohd;Kunieda, Masanori
介绍了以静电感应进给为脉冲电源的微细电火花加工中提高放电能量的方法。在先前的研究中，引入了受控脉冲序列方法，通过允许在同一点处发生多个放电来增加放电能量并扩大每次放电的单位去除。在观察过程中，发现即使使用相同的电容，放电电流的振荡也以更高的幅度被激发。研究了频率对放电能量的影响。结果表明，在谐振频率下进行加工时，可以获得较高的放电能量。研究了电容和电感对谐振频率的影响。在不同的频率放电连续性的概率进行了检查。结果证实，较高的放电连续性在预定的脉冲串持续时间内，可以实现加工时，进行谐振频率，导致更高的材料去除率（MRR）。(C)2016 Elsevier Inc. All rights reserved.
This paper describes the method to increase discharge energy in micro-EDM using electrostatic induction feeding as the pulse generator. In a previous study, controlled pulse train method was introduced to increase discharge energy and enlarge unit removal per discharge by allowing multiple discharges to occur at the same spot. During observation, it was found that the oscillation of discharge current is excited at higher amplitude even if the same capacitance is used. In this paper, the influence of frequency on discharge energy was investigated. It was found that higher discharge energy can be obtained when machining was done at the resonant frequency of the circuit. Influence of capacitance and inductance on resonant frequency was studied. Probability of discharge continuity at different frequencies was examined. The results confirmed that higher discharge continuity within the pre-determined pulse train duration can be achieved when machining is conducted at resonant frequency, leading to higher material removal rate (MRR). (C) 2016 Elsevier Inc. All rights reserved.