Optimization of surface roughness for duplex brass alloy in EDM using response surface methodology

In recent scenario, Duplex brass alloy have drawn many attention of researchers due to the properties such as excellent corrosive resistance, machinability, ductile and easy of fabrication. In present work, the alloy is fabricated by stir casting technique and the machinability was studied during Electric Discharge Machining. In this experiment the control parameters such as current, voltage, pulse on time and flushing pressure were considered to study the effect on Surface roughness (Ra). Response surface methodology (RSM) was used to design the experiment using Box - Behnken design (BBD). An attempt has been made to investigate find out the best optimal parameter for the machining the alloy. The response model has been validated with analysis of variance (ANOVA). Peak current was identified as the significant factor affecting the surface roughness during machining.

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Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).