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In this paper, graphite electrode wear rate and finding the optimal parameter domain in the electro-discharge machining (EDM) operation with tungsten alloy powder to process X40CrMoV51 alloy steel were explored. Therefore, first of all, the Box-Behnken experimental design of the response surface method (RSM) was carried out to evaluate the influence of process parameters such as discharge current (Ip), pulse on time (Ton), and powder concentration (Atap) on electrode wear rate (EWR). In succession, this study established the relationship between input technological parameters and EWR through a mathematical function. The analysis of variance (ANOVA) was used to evaluate the adequacy of this model. Finally, the desired approach (DA) was used to find the optimal parameter domain for EWR.

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Graphite Electrode Wear Rate in Electro-Discharge Machining Operation with Mixed Powder for Machining X40CrMoV51 Alloy Steel: Investigation and Optimizing Technological Parameters

  • 会议论文

  • 发表日期：

    2025年

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  • Van-Tao Le,
  • Tien Long Banh,
  • Thi Hong Minh Nguyen,
  • Nam-Khanh Le,
  • Tien Dung Hoang,
  • Van Thuc Dang,
  • Hoang Cuong Phan

摘要

In this paper, graphite electrode wear rate and finding the optimal parameter domain in the electro-discharge machining (EDM) operation with tungsten alloy powder to process X40CrMoV51 alloy steel were explored. Therefore, first of all, the Box-Behnken experimental design of the response surface method (RSM) was carried out to evaluate the influence of process parameters such as discharge current (Ip), pulse on time (Ton), and powder concentration (Atap) on electrode wear rate (EWR). In succession, this study established the relationship between input technological parameters and EWR through a mathematical function. The analysis of variance (ANOVA) was used to evaluate the adequacy of this model. Finally, the desired approach (DA) was used to find the optimal parameter domain for EWR.