Surface Modification of Graphite by Electrical Discharge Machine - Softcover

Devarani, Ngangkham; Patowari, Promod Kumar

 
9783659350245: Surface Modification of Graphite by Electrical Discharge Machine
Softcover
ISBN 10: 3659350249 ISBN 13: 9783659350245
Verlag: LAP LAMBERT Academic Publishing, 2013

Inhaltsangabe

Electrical Discharge Machining (EDM) is a widespread technique used in industry for high-precision machining of all types of electrical conductive materials. Though it is generally a material removal process, migration of tool material onto the workpiece surface had been observed during machining by EDM and hence this phenomenon has been exploited by many researchers for surface modification. Further, deliberate material transfer has been carried out under specific conditions by using selected tool material onto the machined surface for obtaining specific functional characteristics. In this aspect, Powder Metallurgical (P/M) electrode plays a significant role. In this present work, an attempt for surface modification of graphite using P/M tool electrode of W/Cu, Cr/Cu, Ni/Cu, Si/Cu and Si/Graphite/Cu has been made to obtain a uniformly deposited layer over the graphite base material. Parametric analysis of the performance measures viz. Material Transfer Rate (MTR), Tool Wear Rate (TWR) and surface roughness (Ra) has been done by varying the input parameters. The investigated input process parameters are composition, pulsed on-time/off time and peak current.

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Reseña del editor

Electrical Discharge Machining (EDM) is a widespread technique used in industry for high-precision machining of all types of electrical conductive materials. Though it is generally a material removal process, migration of tool material onto the workpiece surface had been observed during machining by EDM and hence this phenomenon has been exploited by many researchers for surface modification. Further, deliberate material transfer has been carried out under specific conditions by using selected tool material onto the machined surface for obtaining specific functional characteristics. In this aspect, Powder Metallurgical (P/M) electrode plays a significant role. In this present work, an attempt for surface modification of graphite using P/M tool electrode of W/Cu, Cr/Cu, Ni/Cu, Si/Cu and Si/Graphite/Cu has been made to obtain a uniformly deposited layer over the graphite base material. Parametric analysis of the performance measures viz. Material Transfer Rate (MTR), Tool Wear Rate (TWR) and surface roughness (Ra) has been done by varying the input parameters. The investigated input process parameters are composition, pulsed on-time/off time and peak current.

Biografía del autor

Ngangkham Devarani is presently working as an Assistant Professor (on contractual) in NIT Silchar, Assam, India. She received her BE degree in Mechanical Engineering from B.M.S. College of Engineering, Bangalore, India under VTU in 2011 and M. Tech degree from NIT Silchar, India in 2013. Her area of interest is design and manufacturing.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2013
Sprache
Englisch
ISBN 10 
3659350249
ISBN 13 
9783659350245
Einband
Tapa blanda
Anzahl der Seiten
80
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Verantwortliche Person
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