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Till now many researchers employed side flushing with solid tool electrodes. Little work is carried out with injection flushing using hollow electrode tool. A comparative study is carried out with the use of side and injection flushing on Inconel 718 which has great strength and resistance to corrosion. It is used in many different applications, such as automobile components, aeronautical sectors, and even in applications due to its easy and affordable fabrication process, as well as its good strength in terms of tensility, fatigue, creep, and rupture. In this work, Inconel 718 is machined with solid copper beryllium and hollow copper beryllium tool to study the output responses Tool Wear Rate (TWR) and Material Removal Rate (MRR) with input parameter discharge current, pulse on time, and flushing pressure using Response Surface Methodology (RSM). For machining with solid copper beryllium tool, side flushing is carried out and for machining with hollow copper beryllium tool, injection flushing is carried out. MRR is found to be more with injection flushing of hollow copper beryllium tool than side flushing of solid copper beryllium tool.

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Investigations on the Use of Copper Beryllium Electrode as Cathode in EDM for Machining Characteristics of Inconel 718

  • 会议论文

  • 发表日期：

    2026年

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  • M. Prashanth Kumar,
  • P. Sudhakar Rao,
  • Saidaiah Kalakonda,
  • H. N. Redappa

摘要

Till now many researchers employed side flushing with solid tool electrodes. Little work is carried out with injection flushing using hollow electrode tool. A comparative study is carried out with the use of side and injection flushing on Inconel 718 which has great strength and resistance to corrosion. It is used in many different applications, such as automobile components, aeronautical sectors, and even in applications due to its easy and affordable fabrication process, as well as its good strength in terms of tensility, fatigue, creep, and rupture. In this work, Inconel 718 is machined with solid copper beryllium and hollow copper beryllium tool to study the output responses Tool Wear Rate (TWR) and Material Removal Rate (MRR) with input parameter discharge current, pulse on time, and flushing pressure using Response Surface Methodology (RSM). For machining with solid copper beryllium tool, side flushing is carried out and for machining with hollow copper beryllium tool, injection flushing is carried out. MRR is found to be more with injection flushing of hollow copper beryllium tool than side flushing of solid copper beryllium tool.