Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00170-011-3152-6
Title: Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes
Authors: Prihandana, G.S.
Mahardika, M.
Hamdi, M.
Wong, Y.S. 
Mitsui, K.
Keywords: Machining accuracy
Micro-cracks
Micro-electric discharge machining
Nanopowder suspended in dielectric fluid
Ultrasonic vibration of dielectric fluid
Issue Date: Sep-2011
Source: Prihandana, G.S., Mahardika, M., Hamdi, M., Wong, Y.S., Mitsui, K. (2011-09). Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes. International Journal of Advanced Manufacturing Technology 56 (1-4) : 143-149. ScholarBank@NUS Repository. https://doi.org/10.1007/s00170-011-3152-6
Abstract: Micro-electric discharge machining (μ-EDM) is an important manufacturing process that is able to produce components and tools with micro-features. Improvement to this process has resulted in the use of powder mixed dielectric (PMD), which results in better surface quality and faster machining time. However, the presence of conductive powder in the dielectric fluid negatively affects the accuracy of the machining depth. This paper presents a novel method of suspending nanographite powder in dielectric fluid, using ultrasonic vibration of dielectric fluid, and using the number of discharge pulses in order to improve the accuracy of the PMD-μ-EDM process. As a result, machining time has been significantly reduced up to 35%, accuracy increased, and the appearance of micro-cracks on the workpiece surface has been reduced. © 2011 Springer-Verlag London Limited.
Source Title: International Journal of Advanced Manufacturing Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/59355
ISSN: 02683768
DOI: 10.1007/s00170-011-3152-6
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