Abstract
The current work presents an experimental investigation and multi objective optimization of material and WEDM machining features for better surface finish (Ra) and material removal rate (MRR) for a newly made-up Mg/BN/CRT Hybrid MMC. Powder metallurgy route is followed for composite fabrication by reinforcing silica rich E-waste CRT panel glass powder of different particle sizes (10, 30 & 50 μm) at different weight percentages (5, 10 & 15%) and a fixed quantity of 2% Boron Nitride. Reinforcement weight percentage and size, pulse ON time, pulse OFF time and wire feed are considered as process parameters to design the WEDM experiments through Taguchi based orthogonal array technique. Based on the ANOVA results it is revealed that pulse ON time and reinforcement wt. % has higher influence over Ra and MRR when compared to any other parameters considered. The predicting ability of the developed mathematical models for MRR and Ra is found superior and it predicts similar values as that of experimental results. Multi objective optimization carried over through TOPSIS selects the optimal parameter for multi response and the TOPSIS recommended optimum parameter set delivers higher MRR (22.34 mm3/min) and reduced Ra (2.87 μm).
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P. M., G., K., S.P. Wire Electric Discharge Machining of Silica Rich E-waste CRT and BN Reinforced Hybrid Magnesium MMC. Silicon 11, 1429–1440 (2019). https://doi.org/10.1007/s12633-018-9951-8
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DOI: https://doi.org/10.1007/s12633-018-9951-8