Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes
Abstract. The present paper reports on the influence of process parameters on formation of micro-cracks and recast layer on mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, p...
| Main Authors: | , , |
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| Format: | Book Chapter |
| Language: | English |
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International Islamic University Malaysia
2011
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/25552/4/Chapter_9.pdf |
| _version_ | 1825646761347121152 |
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| author | Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali |
| author_facet | Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali |
| author_sort | Khan, Ahsan Ali |
| collection | IIUM |
| description | Abstract. The present paper reports on the influence of process parameters on formation of micro-cracks and recast layer on mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, pulse-on time, pulse-off time and voltage were the variable parameters for the present investigation. Micro cracks were found on the surface due to rapid heating and cooling of the surface during EDM. Micro cracks reduced in number and size when the surface was EDMed with a low current and a short pulse-on time. A layer of recast layer on the work surface was observed after EDM. The thickness of the recast layer was higher while a higher current together with a higher pulse-on time were used. It was concluded that in order to have a high quality surface it should be machined with lower values of current, pulse-on time and voltage. |
| first_indexed | 2024-03-05T23:07:24Z |
| format | Book Chapter |
| id | oai:generic.eprints.org:25552 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-13T18:57:22Z |
| publishDate | 2011 |
| publisher | International Islamic University Malaysia |
| record_format | dspace |
| spelling | oai:generic.eprints.org:255522012-09-24T07:41:42Z http://irep.iium.edu.my/25552/ Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali TS200 Metal manufactures. Metalworking Abstract. The present paper reports on the influence of process parameters on formation of micro-cracks and recast layer on mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, pulse-on time, pulse-off time and voltage were the variable parameters for the present investigation. Micro cracks were found on the surface due to rapid heating and cooling of the surface during EDM. Micro cracks reduced in number and size when the surface was EDMed with a low current and a short pulse-on time. A layer of recast layer on the work surface was observed after EDM. The thickness of the recast layer was higher while a higher current together with a higher pulse-on time were used. It was concluded that in order to have a high quality surface it should be machined with lower values of current, pulse-on time and voltage. International Islamic University Malaysia 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/25552/4/Chapter_9.pdf Khan, Ahsan Ali and Adesta, Erry Yulian Triblas and Mohammad , Yeakub Ali (2011) Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes. In: Advanced Machining Processes. International Islamic University Malaysia, Kuala Lumpur, Malaysia, pp. 44-48. ISBN 9789674181628 http://rms.research.iium.edu.my/bookstore/default.aspx |
| spellingShingle | TS200 Metal manufactures. Metalworking Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title | Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title_full | Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title_fullStr | Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title_full_unstemmed | Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title_short | Formation of micro-cracks and recast layer during EDM of mild steel using copper electrodes |
| title_sort | formation of micro cracks and recast layer during edm of mild steel using copper electrodes |
| topic | TS200 Metal manufactures. Metalworking |
| url | http://irep.iium.edu.my/25552/4/Chapter_9.pdf |
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