Effect of size and shape of electrodes on the performance of EDM

In the present study the effect of size and different shapes of electrodes on material removal rate (MRR), job surface finish and wear ratio (WR) during EDM has been investigated. The work material taken was mild steel and the electrode material taken was copper. The size of the electrodes was 9mm,...

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Main Authors:	Khan, Ahsan Ali, Haque, Md. Mohafizul, Ali, Mohammad Yeakub
Format:	Conference or Workshop Item
Language:	English
Published:	2008
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/14656/ http://irep.iium.edu.my/14656/1/scan_91.pdf

id	iium-14656
recordtype	eprints
spelling	iium-146562017-06-14T02:41:49Z http://irep.iium.edu.my/14656/ Effect of size and shape of electrodes on the performance of EDM Khan, Ahsan Ali Haque, Md. Mohafizul Ali, Mohammad Yeakub TS200 Metal manufactures. Metalworking In the present study the effect of size and different shapes of electrodes on material removal rate (MRR), job surface finish and wear ratio (WR) during EDM has been investigated. The work material taken was mild steel and the electrode material taken was copper. The size of the electrodes was 9mm, 15 mm, 20 mm and 30 mm in diameter. The shapes of the electrodes were square, round, triangular and diamond, having the same area of cross-section. The highest MRR was found for round electrodes followed by square, triangular and diamond shaped electrodes. MRR was found to increases sharply with the increase in diameter of the electrodes. With increase in current, the sparks produced are of higher thermal energy. As a result, increase in current resulted increase in MRR. A higher thermal energy also erodes more material from the electrode. Electrode wear (EW) was measured along the crosssection of the electrode as well as along its length. EW was also found to increase with the increase in current. However, the highest EW was fond on the diamond shaped electrodes followed by triangular, square and the round shaped ones. An electrode of smaller cross-section exhibited a higher electrode wear. Wear ratio (WR) was calculated as the ratio of the volume of material removed from the electrode to the same removed from the work material. The highest WR was found on the diamond shaped electrodes followed by triangular, square and round electrodes. It was also found that WR decreases with increase in cross-sectional area of the electrode. Job surface roughness was found to decrease with increase in electrode diameter, but the effect is very insignificant. The smoothest job surface finish was found for round electrodes followed by square, triangular and diamond shaped electrodes. But again, the influence of the shape of the electrodes on job surface finish was found to be insignificant. 2008-05 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/14656/1/scan_91.pdf Khan, Ahsan Ali and Haque, Md. Mohafizul and Ali, Mohammad Yeakub (2008) Effect of size and shape of electrodes on the performance of EDM. In: 13th International Conference on Applied Mechanics and Mechanical Engineering, 27 - 29 May 2008, Cairo, Egypt.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS200 Metal manufactures. Metalworking
spellingShingle	TS200 Metal manufactures. Metalworking Khan, Ahsan Ali Haque, Md. Mohafizul Ali, Mohammad Yeakub Effect of size and shape of electrodes on the performance of EDM
description	In the present study the effect of size and different shapes of electrodes on material removal rate (MRR), job surface finish and wear ratio (WR) during EDM has been investigated. The work material taken was mild steel and the electrode material taken was copper. The size of the electrodes was 9mm, 15 mm, 20 mm and 30 mm in diameter. The shapes of the electrodes were square, round, triangular and diamond, having the same area of cross-section. The highest MRR was found for round electrodes followed by square, triangular and diamond shaped electrodes. MRR was found to increases sharply with the increase in diameter of the electrodes. With increase in current, the sparks produced are of higher thermal energy. As a result, increase in current resulted increase in MRR. A higher thermal energy also erodes more material from the electrode. Electrode wear (EW) was measured along the crosssection of the electrode as well as along its length. EW was also found to increase with the increase in current. However, the highest EW was fond on the diamond shaped electrodes followed by triangular, square and the round shaped ones. An electrode of smaller cross-section exhibited a higher electrode wear. Wear ratio (WR) was calculated as the ratio of the volume of material removed from the electrode to the same removed from the work material. The highest WR was found on the diamond shaped electrodes followed by triangular, square and round electrodes. It was also found that WR decreases with increase in cross-sectional area of the electrode. Job surface roughness was found to decrease with increase in electrode diameter, but the effect is very insignificant. The smoothest job surface finish was found for round electrodes followed by square, triangular and diamond shaped electrodes. But again, the influence of the shape of the electrodes on job surface finish was found to be insignificant.
format	Conference or Workshop Item
author	Khan, Ahsan Ali Haque, Md. Mohafizul Ali, Mohammad Yeakub
author_facet	Khan, Ahsan Ali Haque, Md. Mohafizul Ali, Mohammad Yeakub
author_sort	Khan, Ahsan Ali
title	Effect of size and shape of electrodes on the performance of EDM
title_short	Effect of size and shape of electrodes on the performance of EDM
title_full	Effect of size and shape of electrodes on the performance of EDM
title_fullStr	Effect of size and shape of electrodes on the performance of EDM
title_full_unstemmed	Effect of size and shape of electrodes on the performance of EDM
title_sort	effect of size and shape of electrodes on the performance of edm
publishDate	2008
url	http://irep.iium.edu.my/14656/ http://irep.iium.edu.my/14656/1/scan_91.pdf
first_indexed	2023-09-18T20:23:50Z
last_indexed	2023-09-18T20:23:50Z
_version_	1777408283995275264

Effect of size and shape of electrodes on the performance of EDM

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