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http://dx.doi.org/10.14775/ksmpe.2016.16.1.149

Fabrication of Micro-electrodes using Liner Block Moving Electrical Discharge Grinding and Characteristics of Micro-hole Machining of Graphene Nanoplatelet-reinforced Al2O3Composites  

Jeong, Hyeon-A (Graduate School of Convergence Science, Pusan National University)
Lee, Chang Hoon (Industrial Liaison Innovation Center, Pusan National University)
Kang, Myung Chang (Graduate School of Convergence Science, Pusan National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.1, 2017 , pp. 149-156 More about this Journal
Abstract
Graphene nanoplatelet (GNP)-reinforced alumina ($Al_2O_3$) is a promising material for micro-partapplications, particularly micro-nozzle shapes, because of its excellent wearresistance. In this study, a $Al_2O_3$/GNPcomposite with 15 vol% graphene nanoplatelets (GNP) was highly densified and fabricated via spark plasma sintering for micro-electrical discharge drilling (Micro-ED drilling) and the wear resistance property of the composite is evaluated via the ball-on-disk method. In addition, the diameter and shape of the micro-electrodes machined by wire electrical discharge grinding (WEDG), block electrical discharge grinding (BEDG), and new linear block moving electrical discharge grinding (LBMEDG) methods are systematically compared and analyzed to observe the micro-hole machining in the micro-ED drilling of the $Al_2O_3$/15vol% GNP composite.
Keywords
$Al_2O_3/GNP$ Composite; Wear Resistance; Micro-Electrical Discharge Drilling; Linear Block Moving Electrical Discharge Grinding;
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Times Cited By KSCI : 3  (Citation Analysis)
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