Control Strategy for Electrical Discharge Machining (EDM) Pulse Power Generator

Minhat Ade Erawan; Khamis Nor Hisham; Azli Yahya; Andromeda Trias; Juli Purwanto Nugroho Kartiko; Safura Hashim Nor Liyana; Mahmud Nazriah; M. Daud Razak

doi:10.4028/www.scientific.net/AMM.554.643

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 554Control Strategy for Electrical Discharge...

Control Strategy for Electrical Discharge Machining (EDM) Pulse Power Generator

Abstract:

Electrical Discharge Machining (EDM) is a advanced machine that can control electrical spark to erode metal on the workpiece. In manufacturing, EDM is used on hard material parts that are extremely difficult to machine by conventional machining processes. EDM system consists of a shaped tool and the work piece, which are connected to a power supply and placed in a dielectric fluid. EDM pulse power generator applies voltage and current pulses between the electrode and workpiece to generate sparks through the gap. To obtain the optimum metarial removal rate (MRR), a good alternative is to improve the gap voltage and gap current. A proposed solution to these issue is combining ultracapacitor bank to the main power supply circuit for EDM machines. The control feedback of this research is designed to make sure that the current on DC bus is maintained at current setting during the machining processes.

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Periodical:

Applied Mechanics and Materials (Volume 554)

Pages:

643-647

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.554.643

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Online since:

June 2014

Authors:

Minhat Ade Erawan*, Khamis Nor Hisham, Azli Yahya, Andromeda Trias, Juli Purwanto Nugroho Kartiko, Safura Hashim Nor Liyana, Mahmud Nazriah, M. Daud Razak

Keywords:

Electrical Discharge Machining (EDM), Gap Current, Gap Voltage, Pulse Power Generator

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References

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