Simulation and Analysis of RC Type Relaxation Power Generator for Electrical Discharge Machines (EDM) in Laplace Transform

Abstract:

Electrical discharge machining (EDM) is one of the earliest non-traditional machining processes and controlled process where pulsed electrical discharge is used to erode metal in a workpiece. EDM pulsed power generator applies voltage pulse discharge occurs in a small gap between the work piece and the electrode and removes the unwanted material from the parent metal through melting and vaporization. The essential requirement for EDM system is to obtain the output waveform similar to the ideal EDM waveform. This paper seeks to discuss on the design and simulation based on RC (resistance-capacitance) power generator circuit. Based on the findings of the study, from the equation gained, the simulation is constructed through using electrical model in Matlab Simulink software and circuit analysis in Lapels transform in EDM system process. Also this procedure simulated in Matlab software.

• Periodical: Applied Mechanics and Materials (Volume 818)
• Pages: 112-116
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.818.112
• Online since: January 2016
• Authors: Fatemeh Karimi Pour*, Mahrokh Bavandi, Azli Yahya
• Keywords: Electrical Discharge Mashing, Laplace Transform, Power Generator, RC Relaxation

References

[1] Andromeda, T., et al. Predicting Material Removal Rate of Electrical Discharge Machining (EDM) using Artificial Neural Network for High I gap current. in Electrical, Control and Computer Engineering (INECCE), 2011 International Conference on. 2011. IEEE.

DOI: 10.1109/inecce.2011.5953887

[2] Casanueva, R., et al. Current source LCC resonant converter for an EDM power supply. in Industrial Electronics Society, 2001. IECON'01. The 27th Annual Conference of the IEEE. 2001. IEEE.

DOI: 10.1109/iecon.2001.975916

[3] Mahmud, N., et al., Pulse Power Generator Design for Machining Micro–pits on Hip Implant. Jurnal Teknologi, 2013. 61(2).

DOI: 10.11113/jt.v61.1633

[4] Erawan, M.A., et al. Model of Pulse Power Generator in Electrical Discharge Machining (EDM) System. in Applied Mechanics and Materials. 2014. Trans Tech Publ.

[5] Masaki, T., K. Kawata, and T. Masuzawa. Micro electro-discharge machining and its applications. in Micro Electro Mechanical Systems, 1990. Proceedings, An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots. IEEE. 1990. IEEE.

DOI: 10.1109/memsys.1990.110240

[6] Jahan, M., Y. Wong, and M. Rahman, A study on the quality micro-hole machining of tungsten carbide by micro-EDM process using transistor and RC-type pulse generator. Journal of materials processing technology, 2009. 209(4): pp.1706-1716.

DOI: 10.1016/j.jmatprotec.2008.04.029

[7] Erawan, M.A., et al. Power Generator of Electrical Discharge Machining (EDM) System. in Applied Mechanics and Materials. 2014. Trans Tech Publ.

[8] Yahya, A., et al., Comparison studies of electrical discharge machining (EDM) process model for low gap current. Advanced Materials Research, 2012. 433: pp.650-654.

DOI: 10.4028/www.scientific.net/amr.433-440.650