Statistical and surface metallurgical study during electric discharge machining of Ti-6Al-4V

Raviraj Shetty, Ramamohan Pai, Augustine B.V. Barboza, Yashwith Shetty

Research output: Contribution to journalArticle

Abstract

Titanium alloy (Ti-6Al-4V) is applicable in wide variety of engineering applications due to their attractive and superior properties. However inspite of these properties, they are considered as difficult-to-machine materials because of low heat dissipation, greater tool wear, higher residual stress after machining, severe microstructure alteration and poor surface quality. Hence an attempt has been made to study the statistics and surface metallurgy during electric discharge machining of Ti-6Al-4V in this present paper. The current interest of this paper is to determine the optimum machining conditions for Ti-6Al-4V using statistical tool on Material removal rate (MRR) and Electrode wear (EW) by varying Peak Current (A), Pulse on time (μs), Pulse off time (μs) and spark gap (mm) based on Taguchi's design of experiments and generation of second order model for MRR using Response Surface Methodology. Finally layer formation, surface metallurgy and electrode wear during machining of Ti-6Al-4V has been investigated using Scanning Electron Microscope and Energy dispersive spectrometer.

Original languageEnglish
Pages (from-to)3594-3600
Number of pages7
JournalARPN Journal of Engineering and Applied Sciences
Volume13
Issue number11
Publication statusPublished - 01-06-2018

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Electric discharge machining
Machining
Wear of materials
Metallurgy
Electrodes
Heat losses
Electric sparks
Titanium alloys
Design of experiments
Surface properties
Spectrometers
Residual stresses
Electron microscopes
Statistics
Scanning
Microstructure

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Shetty, Raviraj ; Pai, Ramamohan ; Barboza, Augustine B.V. ; Shetty, Yashwith. / Statistical and surface metallurgical study during electric discharge machining of Ti-6Al-4V. In: ARPN Journal of Engineering and Applied Sciences. 2018 ; Vol. 13, No. 11. pp. 3594-3600.
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Statistical and surface metallurgical study during electric discharge machining of Ti-6Al-4V. / Shetty, Raviraj; Pai, Ramamohan; Barboza, Augustine B.V.; Shetty, Yashwith.

In: ARPN Journal of Engineering and Applied Sciences, Vol. 13, No. 11, 01.06.2018, p. 3594-3600.

Research output: Contribution to journalArticle

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