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Abstract <p>The influence of the initial roughness <i>R</i><sub><i>a</i></sub> of the working surface of a 3D-printed tool electrode on the quality of the machined workpiece surface is studied experimentally in the copy piercing electrical discharge machining of 12Kh18N10T stainless steel; the tool electrode is produced by selective laser machining (SLM). Preliminary machining of the tool electrode’s working surface reduces the roughness <i>R</i><sub><i>a</i></sub> of the machined surface by 6–8%. The initial roughness <i>R</i><sub><i>a</i></sub> of the working surface has no influence on the microrelief of the machined surface (the crater morphology and the defect distribution).</p>

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Influence of the Rough Surface of a 3D-Printed Tool Electrode on the Workpiece Surface in Copy Piercing Electrical Discharge Machining

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • T. R. Ablyaz,
  • A. A. D’yakonov,
  • E. S. Shlykov,
  • V. B. Blokhin,
  • K. R. Muratov,
  • I. V. Osinnikov,
  • I. R. Yurazaev

摘要

Abstract

The influence of the initial roughness Ra of the working surface of a 3D-printed tool electrode on the quality of the machined workpiece surface is studied experimentally in the copy piercing electrical discharge machining of 12Kh18N10T stainless steel; the tool electrode is produced by selective laser machining (SLM). Preliminary machining of the tool electrode’s working surface reduces the roughness Ra of the machined surface by 6–8%. The initial roughness Ra of the working surface has no influence on the microrelief of the machined surface (the crater morphology and the defect distribution).