Electrochemical micromachining is a chemical based machining it comes under the unconventional type, the method is used to difficult-to-machine materials including super alloys, Ti-alloys, and stainless steel. This experiment demonstrates aspects of the creation of a complete mathematical model for connecting the interaction and higher-order effects of various machining factors on the prevailing machining parameters. i.e MRR, Ra, and overcut phenomena were studied utilising the Taguchi technique and relevant experimental data. The objectives of this paper was to determine the material removal rate, surface roughness, and overcut of an anodicallypolarised cupronickel work piece electrochemically dissolving with a brass electrode. Experiments were carried out to see how different machining factors, such as feed rate, voltage, and electrolyte concentration, affected the results. The level of significance of machining parameters is determined using analysis of variance (ANOVA). Concentration is shown to be the most important element in the reaction of material removal rate, whereas voltage is the most important component in the response of surface roughness. The voltage is the most important factor affecting the overcut. © 2023 Elsevier B.V., All rights reserved.