Enhancing MRR and accuracy with magnetized graphite tool in electrochemical micromachining of copper

Micro hole is the fundamental feature found in any device and its components. Hence this paper aims to produce micro holes using electrochemical micromachining (EMM). The existing machining techniques EMM for creating are associated with more overcut (OC). Hence, reducing OC enhancing rate (MR) essential. This aspires investigate effect of graphite electrode magnetic force on copper plate. Four different tools, namely electromagnetic tool (EMGT), permanent magnet (PMGT), tool, stainless steel (SS) employed these experiments. major influencing factors voltage volts, duty cycle % electrolyte concentration g/l was considered MR OC. results revealed that EMGT, PMGT, electrodes 106.4%, 74.6 44.5 over SS at a parameter level 23 g/l, 15 V, 85%, respectively. Furthermore, EMGT resulted 11.9% 3.41% reduced OC, respectively, than levels 8 95% 28 g/l. Additionally, scanning electron microscope (SEM) picture examination conducted identify field work surface.