Micro-Electro Discharge Machining Using Additively Manufactured Components
摘要
Micromachining is vital in precision manufacturing. However, non-conventional techniques, such as Micro-EDM (Electro Discharge Machining), have not been as thoroughly explored. This study uses additively manufactured components, specifically through Micro-EDM, focusing on non-conventional micromachining. It involves using a metallic additive manufactured tool and a workpiece created with Laser Powder Bed Fusion (LPBF) technology. The research drills 0.5 mm deep holes into an additively manufactured SS 316L workpiece using a 1 mm diameter cylindrical tool, also 3D printed. The study optimizes the input parameters, including Voltage (V), Pulse-on time (µs), and Pulse-off time (µs), using an L4 Taguchi Array. The primary objectives are to maximize Material Removal Rate (MRR), minimize Tool Wear Rate (TWR), and analyze the effects of these parameters on Overcut and Surface Roughness. This research addresses the gap in studies integrating micro-EDM and additive manufacturing by examining the behavior of 3D-printed materials during micromachining. The lack of facilities that combine Micro-EDM and LPBF technologies in a single location has limited such investigations. By studying the synergies between additive manufacturing and micromachining, this work sets a foundation for future research. It also seeks to optimize input parameters to improve process performance, advancing precision manufacturing with additively manufactured components in non-conventional micromachining processes.