Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture

To reduce the machining time and energy, it is important to have uninterrupted machining to make the process sustainable. Understanding the factors and mechanism that affect the wire failure is vital to reduce machining time to preserve resources and improve sustainability. Therefore, the mechanism...

Full description

Bibliographic Details
Main Authors: Pramanik, Alokesh, Basak, A.
Format: Journal Article
Published: Elsevier 2018
Online Access:http://hdl.handle.net/20.500.11937/70840
_version_ 1848762319007383552
author Pramanik, Alokesh
Basak, A.
author_facet Pramanik, Alokesh
Basak, A.
author_sort Pramanik, Alokesh
building Curtin Institutional Repository
collection Online Access
description To reduce the machining time and energy, it is important to have uninterrupted machining to make the process sustainable. Understanding the factors and mechanism that affect the wire failure is vital to reduce machining time to preserve resources and improve sustainability. Therefore, the mechanism of wire electrode rupture during electrical discharge machining (EDM) of Ti-6Al-4V alloy has been investigated in this study. To aid the analysis, electrolyte flushing pressure (7, 10, 15, 18 MPa), wire tension (800, 1100, 1400 and 1700 gf) and pulse-on-time (4, 6, 8 and 10 µsec) were varied to understand the effects of these parameters on wire rupture. The incidents of wire rupture are high at lower flushing pressure and higher wire tension. The influence of pulse-on-time depends on the interaction ns between wire tension and flushing pressure. The wire rupture occurs at instantaneous high temperature due to generation of unwanted arcs when the EDM debris/wastes are not flushed away properly. Higher wire tension may break the wire even at lower temperature in the machining zone. The wire rupture might be very sudden and/or gradual decrease of cross-section of the wire, however, the tips of the broken wire experience necking before fracture which is contributed to associated wire tension and softening by high temperature. The coating of the wire was disrupted and wear-off around the tips of broken wire. Workpiece material was not detected on the tips, however, trace of oxides islands was detected that formed due to high temperature oxidation of wire materials around the broken tips.
first_indexed 2025-11-14T10:45:40Z
format Journal Article
id curtin-20.500.11937-70840
institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T10:45:40Z
publishDate 2018
publisher Elsevier
recordtype eprints
repository_type Digital Repository
spelling curtin-20.500.11937-708402021-01-08T07:54:27Z Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture Pramanik, Alokesh Basak, A. To reduce the machining time and energy, it is important to have uninterrupted machining to make the process sustainable. Understanding the factors and mechanism that affect the wire failure is vital to reduce machining time to preserve resources and improve sustainability. Therefore, the mechanism of wire electrode rupture during electrical discharge machining (EDM) of Ti-6Al-4V alloy has been investigated in this study. To aid the analysis, electrolyte flushing pressure (7, 10, 15, 18 MPa), wire tension (800, 1100, 1400 and 1700 gf) and pulse-on-time (4, 6, 8 and 10 µsec) were varied to understand the effects of these parameters on wire rupture. The incidents of wire rupture are high at lower flushing pressure and higher wire tension. The influence of pulse-on-time depends on the interaction ns between wire tension and flushing pressure. The wire rupture occurs at instantaneous high temperature due to generation of unwanted arcs when the EDM debris/wastes are not flushed away properly. Higher wire tension may break the wire even at lower temperature in the machining zone. The wire rupture might be very sudden and/or gradual decrease of cross-section of the wire, however, the tips of the broken wire experience necking before fracture which is contributed to associated wire tension and softening by high temperature. The coating of the wire was disrupted and wear-off around the tips of broken wire. Workpiece material was not detected on the tips, however, trace of oxides islands was detected that formed due to high temperature oxidation of wire materials around the broken tips. 2018 Journal Article http://hdl.handle.net/20.500.11937/70840 10.1016/j.jclepro.2018.07.045 http://creativecommons.org/licenses/by/4.0/ Elsevier fulltext
spellingShingle Pramanik, Alokesh
Basak, A.
Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title_full Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title_fullStr Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title_full_unstemmed Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title_short Sustainability in wire electrical discharge machining of titanium alloy: Understanding wire rupture
title_sort sustainability in wire electrical discharge machining of titanium alloy: understanding wire rupture
url http://hdl.handle.net/20.500.11937/70840