Abstract
Electrochemical Micromachining (EMM) is a non-conventional technique that has the potential to provide excellent accuracy due to its ionic dissolution nature. The technique is evolving rapidly with continuous research works and emerging as a frontline technology in the micro-fabrication domain. The dominant input factors of electrochemical machining (ECM) process become very sensitive at micro-domain and parametric optimization is inevitable for enhanced performance. New researches are required to enhance every aspect of the processing system that includes electric power, electrolyte, feed mechanism, gap control etc. The aim of the current work is to produce micro-holes on SS-304 sheet using tungsten tool and citric acid electrolyte through EMM process. An EMM device fabricated for experimentation purpose with pulse generator was utilized in this research. The operating factors preferred for study are voltage, current, pulse-on-time & electrolyte concentration. Taguchi’s L9 design for trials and Grey Relational Analysis (GRA) for multi response optimization were employed. The optimum set of parameters obtained through GRA included 12 V,1.2 A, 15 ms of pulse-on-time period and 20 g/l of solution concentration. The most influential factor observed was pulse-on-time. Though machining was slow with citric acid as electrolyte, holes produced were of good accuracy.
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Subburam, V., Ramesh, S., Freitas, L.I. (2021). Optimization and Effect Analysis of Sustainable Micro Electrochemical Machining Using Organic Electrolyte. In: Palanikumar, K., Natarajan, E., Sengottuvelu, R., Davim, J.P. (eds) Futuristic Trends in Intelligent Manufacturing. Materials Forming, Machining and Tribology. Springer, Cham. https://doi.org/10.1007/978-3-030-70009-6_4
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