Abstract

Hybrid machining processes play an important role in traditional and non-traditional machining processes. Addingthe magnetic field effect in electrochemical micromachining (ECMM) improves the machining efficiency and accuracy of the micro-hole machined. The process parameters, namely, voltage,duty cycle and electrolyte concentration,wereused as input parameters, while machining rate (MR) and overcut (OC) are performance measures considered in this research. The workpiecewasa scrapped alloy wheel matrix fabricated with a stir-casting process reinforced with alumina (Al2O3). The EDAX and SEM image study was performed to understand the composition and surface quality of the machined workpiece, respectively. The micro-hole without magnetic field effect was also conducted to under­standthe possible advantageof magnetic field appliedin ECMM.

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