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The present work investigates the influence of machining parameters on the material removal rate (MRR) and surface roughness (Ra) during wire electrical discharge machining (WEDM) of titanium alloy Ti-6Al-7Nb. The experimental investigation has been conducted by Taguchi’s L9 orthogonal array. Current, pulse on time and pulse off time has been considered as the machining variables whereas MRR and Ra has been considered as the output parameters for the current study. The rise in current and pulse on time increases the MRR and Ra whereas the rise in pulse off time reduces the MRR and Ra of the fabricated sample. ANOVA results revel that current has the largest contribution for MRR and Ra of the machined surface. The S/N ratio based single response optimization approches successfully optimize the WEDM parameters for minimum Ra and maximum MRR.

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Optimization of Machining Parameters During WEDM of Ti-6Al-7Nb Alloy

  • 会议论文

  • 发表日期：

    2026年

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  • Souradeep Dutta,
  • Rishanbor Syiemlieh,
  • Deba Kumar Sarma,
  • Pinakeswar Mahanta,
  • Maneswar Rahang

摘要

The present work investigates the influence of machining parameters on the material removal rate (MRR) and surface roughness (Ra) during wire electrical discharge machining (WEDM) of titanium alloy Ti-6Al-7Nb. The experimental investigation has been conducted by Taguchi’s L9 orthogonal array. Current, pulse on time and pulse off time has been considered as the machining variables whereas MRR and Ra has been considered as the output parameters for the current study. The rise in current and pulse on time increases the MRR and Ra whereas the rise in pulse off time reduces the MRR and Ra of the fabricated sample. ANOVA results revel that current has the largest contribution for MRR and Ra of the machined surface. The S/N ratio based single response optimization approches successfully optimize the WEDM parameters for minimum Ra and maximum MRR.