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Title: Modeling and analyses of electrolytic in-process dressing (ELID) and grinding
Keywords: ELID, Grinding, Oxidized layer, cast iron bonded wheel, grinding model, in-process dressing
Issue Date: 14-Feb-2005
Citation: KADER MOHIDEEN FATHIMA PATHAM (2005-02-14). Modeling and analyses of electrolytic in-process dressing (ELID) and grinding. ScholarBank@NUS Repository.
Abstract: AbstractThe requirements for nanosurface finish on hard and brittle materials have been increasing in the recent years. The difficulties experienced while finishing non-axis-symmetric components such as aspheres emerges new innovations in the field of ultra precision manufacturing. Fixed abrasive finishing processes such as micro/nanogrinding can provide better geometrical accuracy required for the non-axis-symmetric components. However, the problems such as wheel loading and glazing are encountered while grinding with fine abrasive grits. The Electrolytic In-process Dressing (ELID) is a new technique, which eliminates wheel loading and glazing and extends the possibility of using grinding wheels that contains abrasives in the size of nanometers. However, several difficulties have been experienced while grinding with the aid of the ELID. The influence of electrolytic parameters, grinding parameters and wear mechanism of the grinding wheels should be analyzed in order to increase the robustness of the process. The main focus of the thesis is to analyze the fundamentals of the ELID grinding. The experimental investigations show that the surface finish and the wear rate of the grinding wheels depend on the properties of the oxidized layer formed on the wheel surface during ELID. The oxidized layer has been characterized in order to know the micro/nanomechanical properties. An analytical model has been developed for ELID grinding and it has been substantiated by the experimental investigations. The research work conducted in this project will be more helpful to promote better understanding of the ELID technique and to improve its robustness in the field of ultra precision machining.
Appears in Collections:Ph.D Theses (Open)

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