Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/35847
Title: Micro-EDM Process for Tool-based Compound Micromachining
Authors: ABU BAKAR MD ALI ASAD
Keywords: Micro-EDM, Tool-based micromachining, Compound Micromachining, Multi-process Micromachining, Plasma Model, 3D EDM-Milling
Issue Date: 13-Aug-2012
Source: ABU BAKAR MD ALI ASAD (2012-08-13). Micro-EDM Process for Tool-based Compound Micromachining. ScholarBank@NUS Repository.
Abstract: This study aims to develop micro-EDM process for tool-based compound micromachining for machining at the lower boundary of micromachining domain between 5?m ~50?m. A universal multi-process machine tool capable of performing compound micromachining processes has been evaluated and the need for implementation of RC (relaxation circuit) power supply for very small discharge energy has been identified. A model for the RLC network of RC power supply has been proposed from theoretical analysis of micro-EDM plasma properties which guided the development of a RC power supply for very low discharge energy down to ~37nJ. With further improvement in gap control, implementation of 3D micro-EDM milling and techniques for straight electrode fabrication; several shapes and features below 20?m has been machined by micro-EDM process. The developed platform has been utilized for exploration of novel compound micromachining techniques for successful machining of micro-slots and micro-shafts by combining micro-EDM, micro-turning and micro-milling processes.
URI: http://scholarbank.nus.edu.sg/handle/10635/35847
Appears in Collections:Ph.D Theses (Open)

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