Discharge analysis of EDM pulse generator

Dehghani, Dana; Yahya, Azli; Khamis, Nor Hisham Haji

doi:10.1088/1742-6596/1529/4/042110

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…The conditions in the discharge phase are depicted in Figure 5. Various parameters are employed to quantify the erosion rate in the EDM process, including the discharge pulse Ontime (Ton), gap voltage (Vdis), frequency (f), discharge current (Igap), and material properties factor (α) [11][12][13][14][15]. For instance, the material properties factor for a copper electrode and a steel workpiece is determined to be 2 × 10-12 m 3 /J.…”

Section: Model Of Edm Pulsementioning

confidence: 99%

MATLAB Modeling of Component in Electrical Discharge Machining (EDM) Pulses

Betantya Nugroho,

Yahya,

Mat Sidek

et al. 2023

Media J. Gen. Comput. Sci.

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Electrical Discharge Machining (EDM), is a machining technique for working with conductive materials. During the EDM process, electrical discharge energy is transformed into thermal energy, leading to the erosion of the workpiece. The energy utilized by the EDM process is represented by the time-dependent current, which determines the energy density employed for workpiece erosion. Ideally, during a discharge event, the current pulse should exhibit a square wave shape. However, in practice, EDM circuits often incorporate parasitic components that lead to non-square waveforms or transient currents. In this paper, we describe the simulation of parasitic components using MATLAB, revealing that these components alter the signal waveform and affect the achievement of a square pulse wave in MRR. The presence of parasitic components results in transient current patterns during the discharge phase and, consequently, a reduction in MRR. The implementation of a square wave current, however, enhances the MRR value and increases the efficiency of the EDM process

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