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Electrochemical machining (ECM) is a control tool room ionization process in which the material removal rate does not depend on the hardness and toughness of workpiece materials. Many parametric studies have been published on the effect of input parameters like voltage (V), inter-electrode gap (IEG), feed rate, and electrolyte concentration, but less has been published on 17-4 PH SS to analyze the surface roughness (Ra) and material removal rate (MRR) using circular and hexagonal lower shapes tool profile. This study used the Taguchi L16 Orthogonal Array (OA) for 17-4 PH SS by considering process parameters like IEG, feed rate, voltage, and selected tool profile-shaped for higher MRR and lower Ra. ANOVA determined the contribution of each process parameter to optimal responses. The machined surface morphology was analyzed using SEM and EDS. The IEG was found to be the most significant parameter for MRR, while the IEG and tool feed rate were for surface roughness.

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Optimization of Electrochemical Machining Parameters for Enhanced MRR and Ra of 17-4 PH Stainless Steel

  • 会议论文

  • 发表日期：

    2026年

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  • Saurabh Kumar,
  • S. S. Dhami

摘要

Electrochemical machining (ECM) is a control tool room ionization process in which the material removal rate does not depend on the hardness and toughness of workpiece materials. Many parametric studies have been published on the effect of input parameters like voltage (V), inter-electrode gap (IEG), feed rate, and electrolyte concentration, but less has been published on 17-4 PH SS to analyze the surface roughness (Ra) and material removal rate (MRR) using circular and hexagonal lower shapes tool profile. This study used the Taguchi L16 Orthogonal Array (OA) for 17-4 PH SS by considering process parameters like IEG, feed rate, voltage, and selected tool profile-shaped for higher MRR and lower Ra. ANOVA determined the contribution of each process parameter to optimal responses. The machined surface morphology was analyzed using SEM and EDS. The IEG was found to be the most significant parameter for MRR, while the IEG and tool feed rate were for surface roughness.