Optimization of micro-ECDM performances during micro-channeling on glass using Taguchi technique

Abstract

The present research work is aimed toward optimize the micro-ECDM (Electro Chemical Discharge Machining) parameters like applied voltage, electrolyte concentration, duty ratio and pulse frequency on the optimum micro-channeling performances on borosilicate glass. Micro-ECDM tests were performed on borosilicate glass in well-established ECDM set-up under different applied voltage, electrolyte concentrations, duty ratios and pulse frequencies. Several micro-ECDM performances on glass like material removal rate (MRR), surface roughness (SR) and width of cut (WOC) were investigated for every matching test condition. The signal noise (S/N) ratio and best fitted ANOVA analysis as-well-as predicted results, mean and standard deviation has been propounded during micro-channel machining process. Heat affected zone, radial overcut and morphology of debris were investigated under scanning electron microscope. The micro-ECDM parameters have been optimized by applying Taguchi Technique on the experimental results and observations. The optimum micro-channeling performances during micro-ECDM process on glass are observed at applied voltage of 50 V, 25 wt% electrolyte concentration, 0.5 duty ratio and 50 Hz pulse frequency.