Год выпуска: 2013 Автор: Ngangkham Devarani and Promod Kumar Patowari Издательство: LAP Lambert Academic Publishing Страниц: 80 ISBN: 9783659350245
Описание
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...
