Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15997
Title: An Experimental Investigation on Surface Characteristics of Tool Steel using Powder Mixed Micro-EDM
Authors: MOHAMMED MUNTAKIM ANWAR
Keywords: Surface finish, RC type pulse generator, Die sinking micro-EDM, Scanning micro-EDM, Powder mixed micro-EDM.
Issue Date: 27-Aug-2008
Source: MOHAMMED MUNTAKIM ANWAR (2008-08-27). An Experimental Investigation on Surface Characteristics of Tool Steel using Powder Mixed Micro-EDM. ScholarBank@NUS Repository.
Abstract: In recent years numerous developments in Electrical Discharge Machining (EDM) focused in the fabrication of micro tools, micro components and parts with micro features. For the fabrication of complex 3-D molds using tough die materials, micro-EDM is one of the successfully applied machining processes. Since the surface finish of the micro mold cavity affects the surface quality of finished products, it is necessary to perform studies to improve surface roughness using micro-EDM. In view of this ongoing challenge, a series of experiments were conducted in die sinking micro-EDM and scanning micro-EDM using RC type pulse generator. Moreover it has been found that powder added in the dielectric fluid of conventional EDM can distinctly improve the surface finish and surface quality. To study the effect of extension of this technique to micro-EDM, powder mixed micro-EDM was conducted using die sinking and scanning method. The results show that powder added dielectric and scanning method together generates the best surface finish in micro-EDM.
URI: http://scholarbank.nus.edu.sg/handle/10635/15997
Appears in Collections:Master's Theses (Open)

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