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<p>In this work, ECM of the high-entropy alloys were studied for improvement of machining performance in terms of MRR and overcut. Two significant input variables of electrolyte concentration and Si-Al2O3 addition have been chosen. ANOVA was performed to determine the influence of machining responses. The effect of the electrolyte concentration is the most influencing parameter on MRR where its contribution was 49% and percentage of Si-Al2O3 as moderate factor that affect in overcut with 58%. The composite desirability function evaluated as a multi response optimization offering the best conditions at an electrolyte concentration of 31.85&#xa0;g/l and Si-Al2O3 of 2 wt%. and the overall desirability of 0. 8835. The maximum MRR was 1.7974 mm<sup>3</sup>/min with desirability of 0.88285 and the minimum overcut was 0.0020&#xa0;mm with a desirability value of 0.88418. The obtained results revealed that the concentration of electrolytes and percentage of abrasive particles in ECM process were the critical parameters for optimization of machining to obtain better MRR for optimal machining efficiency and minimal overcut.</p>

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Optimization of ECM parameters on silicon and Al₂O₃ powders in NaOH electrolyte for high entropy alloy

  • 期刊论文

  • 发表日期：

    2026年2月2日

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  • G. Bharath Reddy,
  • J. Saranya,
  • S. Ananth,
  • S. Hari Vignesh,
  • J. Harish,
  • S. Lakshmanan

摘要

In this work, ECM of the high-entropy alloys were studied for improvement of machining performance in terms of MRR and overcut. Two significant input variables of electrolyte concentration and Si-Al2O3 addition have been chosen. ANOVA was performed to determine the influence of machining responses. The effect of the electrolyte concentration is the most influencing parameter on MRR where its contribution was 49% and percentage of Si-Al2O3 as moderate factor that affect in overcut with 58%. The composite desirability function evaluated as a multi response optimization offering the best conditions at an electrolyte concentration of 31.85 g/l and Si-Al2O3 of 2 wt%. and the overall desirability of 0. 8835. The maximum MRR was 1.7974 mm3/min with desirability of 0.88285 and the minimum overcut was 0.0020 mm with a desirability value of 0.88418. The obtained results revealed that the concentration of electrolytes and percentage of abrasive particles in ECM process were the critical parameters for optimization of machining to obtain better MRR for optimal machining efficiency and minimal overcut.