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2000
Volume 18, Issue 3
  • ISSN: 2212-7976
  • E-ISSN: 1874-477X

Abstract

Introduction

Wire electrical discharge machining (W-EDM) has proven to be an appropriate choice for machining hard-to-cut materials for obtaining difficult and complex geometries with excellent surface characteristics. This study contributes to the development of a patent related to W-EDM advancements.

Methods

The present work investigates the effect of different wires, . copper, brass, and Nb-coated brass, along with the investigations of W-EDM input factors, . pulse-on-duration (T), pulse-off-duration (T), and current on material removal rate (MRR) and surface roughness (SR). Taguchi’s L9 design has been employed to perform the trials.

Results

The maximum MRR of 31.03 mm3/min has been obtained for Nb-coated brass as compared to copper and brass. SR was observed to be least using the brass with a value of 3.19 µm. However, the optimum SR value obtained using a Nb-coated brass was 4.87 µm. Finally, scanning electron microscopy (SEM) for various wire materials revealed the machined surface topography.

Conclusion

The surface machined with Nb-coated wire shows fewer microcracks, pores, and globule sizes. As per this study, the current work can significantly benefit commercial applications.

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Experimental investigation of Surface Morphology and Interface of Ti-6Al-4V Alloy Using Wire-Electric Discharge Machining
Recent Patents on Mechanical Engineering 18, 330 (2025); https://doi.org/10.2174/0122127976325410240821104946
/content/journals/meng/10.2174/0122127976325410240821104946
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  • Article Type:     Research Article
Keyword(s): brass wire; copper wire; Nb-coated wire; surface morphology; Ti-6Al-4V alloy; wire-electric discharge machining

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