Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining

This paper reports on the surface characteristics of a functionally graded Titanium (Ti-6Al-4V) alloy during Electrical Discharge Machining (EDM). The electrical discharge input parameters employed for this work are current (I), on-time (Ton), off-time (Toff) and spark gap voltage (V). The electrode...

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Main Authors:	Abdulkareem, Sulaiman, Khan, Ahsan Ali, Konneh, Mohamed
Format:	Article
Language:	English English
Published:	Khon Kaen University,Thailand 2018
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/62518/ http://irep.iium.edu.my/62518/ http://irep.iium.edu.my/62518/7/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded.pdf http://irep.iium.edu.my/62518/8/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded%20SCOPUS.pdf

id	iium-62518
recordtype	eprints
spelling	iium-625182018-09-07T02:09:15Z http://irep.iium.edu.my/62518/ Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining Abdulkareem, Sulaiman Khan, Ahsan Ali Konneh, Mohamed TS200 Metal manufactures. Metalworking This paper reports on the surface characteristics of a functionally graded Titanium (Ti-6Al-4V) alloy during Electrical Discharge Machining (EDM). The electrical discharge input parameters employed for this work are current (I), on-time (Ton), off-time (Toff) and spark gap voltage (V). The electrode used for EDM of the titanium workpieces is an electrolytic copper electrode. The two machining processes employed are at room temperature and sub-zero temperature using liquid nitrogen at -1600C as electrode coolant during the process. EDM machining was designed for all the input parameters and the materials machined with three different currents, i.e., 4.5A, 5.5A and 7.5A, while the workpieces were examined for microlayer defects using scanning electron microscopy (SEM). The result showed an average micro-layer thickness of 24.47 μm with current of 7.5A when machined at -1600C. Also an increase in crack formation with the highest current of 7.5A for the surfaces machined at subzero temperature was recorded for both the workpieces and electrode materials. Khon Kaen University,Thailand 2018-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62518/7/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded.pdf application/pdf en http://irep.iium.edu.my/62518/8/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded%20SCOPUS.pdf Abdulkareem, Sulaiman and Khan, Ahsan Ali and Konneh, Mohamed (2018) Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining. Engineering and Applied Science Research, 45 (1). pp. 17-22. ISSN 2539-6161 E-ISSN 2539-6218 https://www.tci-thaijo.org/index.php/easr/article/view/75960/88455
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TS200 Metal manufactures. Metalworking
spellingShingle	TS200 Metal manufactures. Metalworking Abdulkareem, Sulaiman Khan, Ahsan Ali Konneh, Mohamed Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
description	This paper reports on the surface characteristics of a functionally graded Titanium (Ti-6Al-4V) alloy during Electrical Discharge Machining (EDM). The electrical discharge input parameters employed for this work are current (I), on-time (Ton), off-time (Toff) and spark gap voltage (V). The electrode used for EDM of the titanium workpieces is an electrolytic copper electrode. The two machining processes employed are at room temperature and sub-zero temperature using liquid nitrogen at -1600C as electrode coolant during the process. EDM machining was designed for all the input parameters and the materials machined with three different currents, i.e., 4.5A, 5.5A and 7.5A, while the workpieces were examined for microlayer defects using scanning electron microscopy (SEM). The result showed an average micro-layer thickness of 24.47 μm with current of 7.5A when machined at -1600C. Also an increase in crack formation with the highest current of 7.5A for the surfaces machined at subzero temperature was recorded for both the workpieces and electrode materials.
format	Article
author	Abdulkareem, Sulaiman Khan, Ahsan Ali Konneh, Mohamed
author_facet	Abdulkareem, Sulaiman Khan, Ahsan Ali Konneh, Mohamed
author_sort	Abdulkareem, Sulaiman
title	Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
title_short	Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
title_full	Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
title_fullStr	Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
title_full_unstemmed	Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
title_sort	analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining
publisher	Khon Kaen University,Thailand
publishDate	2018
url	http://irep.iium.edu.my/62518/ http://irep.iium.edu.my/62518/ http://irep.iium.edu.my/62518/7/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded.pdf http://irep.iium.edu.my/62518/8/62518%20Analysis%20of%20microlayer%20defects%20of%20a%20functionally%20graded%20SCOPUS.pdf
first_indexed	2023-09-18T21:28:36Z
last_indexed	2023-09-18T21:28:36Z
_version_	1777412358570770432

Analysis of microlayer defects of a functionally graded titanium alloy by electrical discharge machining

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