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<p>Wire electrical discharge machining (Wire-EDM) is extensively employed in various manufacturing industries as an advanced machining technique. Material is removed in this process by melting and vaporization, which leads to the formation of a re-solidified layer and the induction of thermal residual stresses. This necessitates post-processing operations of the machined part and feature before their end use. Wire electrochemical machining (Wire-ECM) is a non-thermal type of process that removes material through electrochemical dissolution at the ionic level under an applied electric field. While Wire-ECM does not have the drawbacks&#xa0;associated with Wire-EDM mention earlier, it has its own limitations. This study compares Wire-ECM with Wire-EDM in terms of the roughness of the machined surface, machining rate, generated overcut, and mechanical characteristics of the machined surface. Experimental results indicate that while Wire-ECM exhibits greater overcut and consumes more energy per unit length machined, it produces significantly smoother surfaces. Unlike Wire-EDM, Wire-ECM does not alter the micro-hardness of the material. In Wire-EDM, a hardened layer forms near the machined area, increasing yield strength and ultimate tensile strength. Additionally, the rapid thermal cycling in Wire-EDM enhances ductility, as demonstrated by greater elongation at break. Thus, both processes offer unique advantages and limitations depending on application needs.</p>

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Performance Comparison of Wire-Electrochemical Machining and Wire-Electrical Discharge Machining for the Processing of Stainless Steel-304

  • 期刊论文

  • 发表日期：

    2025年4月30日

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  • Naisarg Sagathiya,
  • Mahavir Singh,
  • Vyom Sharma,
  • Janakarajan Ramkumar

摘要

Wire electrical discharge machining (Wire-EDM) is extensively employed in various manufacturing industries as an advanced machining technique. Material is removed in this process by melting and vaporization, which leads to the formation of a re-solidified layer and the induction of thermal residual stresses. This necessitates post-processing operations of the machined part and feature before their end use. Wire electrochemical machining (Wire-ECM) is a non-thermal type of process that removes material through electrochemical dissolution at the ionic level under an applied electric field. While Wire-ECM does not have the drawbacks associated with Wire-EDM mention earlier, it has its own limitations. This study compares Wire-ECM with Wire-EDM in terms of the roughness of the machined surface, machining rate, generated overcut, and mechanical characteristics of the machined surface. Experimental results indicate that while Wire-ECM exhibits greater overcut and consumes more energy per unit length machined, it produces significantly smoother surfaces. Unlike Wire-EDM, Wire-ECM does not alter the micro-hardness of the material. In Wire-EDM, a hardened layer forms near the machined area, increasing yield strength and ultimate tensile strength. Additionally, the rapid thermal cycling in Wire-EDM enhances ductility, as demonstrated by greater elongation at break. Thus, both processes offer unique advantages and limitations depending on application needs.