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Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode

A large number of parameters significantly affect the performance of electrical discharge machining (EDM) which is a non-conventional technique. The choice of the EDM parameters depends on workpieceelectrode material combination. So, the selection of parameters becomes intricate. This manuscript pre...

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Main Authors: Khan, Md. Ashikur Rahman, M. M., Rahman
Format: Article
Language:English
Published: Springer-Verlag 2017
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/17083/1/Surface%20characteristics%20of%20Ti-5Al-2.5Sn%20in%20electrical%20discharge%20machining%20using%20negative%20polarity%20of%20electrode.pdf
http://umpir.ump.edu.my/id/eprint/17083/
https://link.springer.com/article/10.1007/s00170-017-0028-4
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spelling my.ump.umpir.170832018-04-27T01:39:41Z http://umpir.ump.edu.my/id/eprint/17083/ Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode Khan, Md. Ashikur Rahman M. M., Rahman TJ Mechanical engineering and machinery A large number of parameters significantly affect the performance of electrical discharge machining (EDM) which is a non-conventional technique. The choice of the EDM parameters depends on workpieceelectrode material combination. So, the selection of parameters becomes intricate. This manuscript presents the surface characteristics of the machined surface in EDM on Ti-5Al-2.5Sn titanium alloy. The surface roughness and the microstructure of the machined surface are explored for different EDM parameters and electrode materials. Experimentation was accomplished using negative polarity of copper, copper-tungsten and graphite electrode. In this study, peak current, pulse-on time, pulse-off time and servo-voltage are taken into consideration as process variables. The surface roughness is greatly influenced by peak current and pulse-on time among the selected electrical parameters. Among the three electrodes, the copper electrode produces the lowest surface roughness whilst graphite electrode gives the highest surface roughness. The surface characteristics (crater, crack and globule) are distorted on account of discharge energy. In context of fine surface characteristics, the copper can become as first choice electrode materials. Springer-Verlag 2017-02 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17083/1/Surface%20characteristics%20of%20Ti-5Al-2.5Sn%20in%20electrical%20discharge%20machining%20using%20negative%20polarity%20of%20electrode.pdf Khan, Md. Ashikur Rahman and M. M., Rahman (2017) Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode. The International Journal of Advanced Manufacturing Technology, 92 (1-4). pp. 1-13. ISSN 0268-3768 (Print), 1433-3015 (Online) https://link.springer.com/article/10.1007/s00170-017-0028-4 DOI: 10.1007/s00170-017-0028-4
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Khan, Md. Ashikur Rahman
M. M., Rahman
Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
description A large number of parameters significantly affect the performance of electrical discharge machining (EDM) which is a non-conventional technique. The choice of the EDM parameters depends on workpieceelectrode material combination. So, the selection of parameters becomes intricate. This manuscript presents the surface characteristics of the machined surface in EDM on Ti-5Al-2.5Sn titanium alloy. The surface roughness and the microstructure of the machined surface are explored for different EDM parameters and electrode materials. Experimentation was accomplished using negative polarity of copper, copper-tungsten and graphite electrode. In this study, peak current, pulse-on time, pulse-off time and servo-voltage are taken into consideration as process variables. The surface roughness is greatly influenced by peak current and pulse-on time among the selected electrical parameters. Among the three electrodes, the copper electrode produces the lowest surface roughness whilst graphite electrode gives the highest surface roughness. The surface characteristics (crater, crack and globule) are distorted on account of discharge energy. In context of fine surface characteristics, the copper can become as first choice electrode materials.
format Article
author Khan, Md. Ashikur Rahman
M. M., Rahman
author_facet Khan, Md. Ashikur Rahman
M. M., Rahman
author_sort Khan, Md. Ashikur Rahman
title Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
title_short Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
title_full Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
title_fullStr Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
title_full_unstemmed Surface Characteristics of Ti-5Al-2.5Sn in Electrical Discharge Machining Using Negative Polarity of Electrode
title_sort surface characteristics of ti-5al-2.5sn in electrical discharge machining using negative polarity of electrode
publisher Springer-Verlag
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/17083/1/Surface%20characteristics%20of%20Ti-5Al-2.5Sn%20in%20electrical%20discharge%20machining%20using%20negative%20polarity%20of%20electrode.pdf
http://umpir.ump.edu.my/id/eprint/17083/
https://link.springer.com/article/10.1007/s00170-017-0028-4
_version_ 1643668085084782592
score 13.222552

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