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Title: The effect of process parameters on machining of magnesium nano alumina composites through EDM
Authors: Ponappa, K.
Aravindan, S.
Rao, P.V.
Ramkumar, J.
Gupta, M. 
Keywords: EDM
Magnesium composite
Nano alumina
Issue Date: Feb-2010
Citation: Ponappa, K., Aravindan, S., Rao, P.V., Ramkumar, J., Gupta, M. (2010-02). The effect of process parameters on machining of magnesium nano alumina composites through EDM. International Journal of Advanced Manufacturing Technology 46 (9-12) : 1035-1042. ScholarBank@NUS Repository.
Abstract: The effects of electrical discharge machining (EDM) parameters on drilled-hole quality such as taper and surface finish are evaluated. Microwave-sintered magnesium nano composites (reinforced with 0.8 and 1.2 wt.% of nano alumina) are used as work materials. Experiments were conducted using Taguchi methodology to ascertain the effects of EDM process parameter. The process parameters such as pulse-on time, pulse-off time, voltage gap, and servo speed were optimized to get better surface finish and reduced taper. ANOVA analyses were carried out to identify the significant factors that affect the hole accuracy and the surface roughness. Confirmation tests were performed on the predicted optimum process parameters. Pulse-on time and the servo speed are identified as major response variables. Micro structural changes and the effects of nano particle reinforcement in the drilled hole were studied through SEM micrographs. © 2009 Springer-Verlag London Limited.
Source Title: International Journal of Advanced Manufacturing Technology
ISSN: 02683768
DOI: 10.1007/s00170-009-2158-9
Appears in Collections:Staff Publications

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