Comparative Study of White Layer Characteristics for Static and Rotating Workpiece during Electric Discharge Machining
EDMed (Electric Discharge Machined) surfaces are unique in their appearance and metallurgical characteristics, which depend on different parameter such as electric parameters, flushing method, and dielectric type. Conventionally, in static workpiece method the EDM (Electric Discharge Machining) is...
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| Format: | Article |
| Language: | English |
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Mehran University of Engineering and Technology
2017-10-01
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| Series: | Mehran University Research Journal of Engineering and Technology |
| Subjects: | |
| Online Access: | http://publications.muet.edu.pk/research_papers/pdf/pdf1612.pdf |
| _version_ | 1831792284202434560 |
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| author | SHAHID MEHMOOD MASOOD SHAH BAKHT BAHADUR RANA NAZEER AHMED ANJUM AMIR SULTAN |
| author_facet | SHAHID MEHMOOD MASOOD SHAH BAKHT BAHADUR RANA NAZEER AHMED ANJUM AMIR SULTAN |
| author_sort | SHAHID MEHMOOD |
| collection | DOAJ |
| description | EDMed (Electric Discharge Machined) surfaces are unique in their appearance and metallurgical
characteristics, which depend on different parameter such as electric parameters, flushing method, and
dielectric type. Conventionally, in static workpiece method the EDM (Electric Discharge Machining) is
performed by submerging both of the tool and workpiece in dielectric liquid and side flushing is provided
by impinging pressurized dielectric liquid into the gap. Another flushing method has been investigated
in this study, in which, instead of side flushing the rotation motion is provided to the workpiece. Surface
characteristics for both flushing methods are determined and compared in this study. The investigated
surface characteristics are: surface roughness, crater size, surface morphology, white layer thickness
and composition. These investigations are performed using optical and SEM (Scanning Electron
Microscope). Statistical confidence limits are determined for scattered data of surface roughness. It is
found that the white layer thickness and surface roughness are directly proportional to discharge
current for both flushing methods. The comparison has shown that the side flushing of statics workpiece
gives thicker white layer and lower surface finish as compared to the flushing caused by the rotation of
workpiece |
| first_indexed | 2024-12-22T15:09:58Z |
| format | Article |
| id | doaj.art-d1edabbe83954ec88c576fe193e78b78 |
| institution | Directory Open Access Journal |
| issn | 0254-7821 2413-7219 |
| language | English |
| last_indexed | 2024-12-22T15:09:58Z |
| publishDate | 2017-10-01 |
| publisher | Mehran University of Engineering and Technology |
| record_format | Article |
| series | Mehran University Research Journal of Engineering and Technology |
| spelling | doaj.art-d1edabbe83954ec88c576fe193e78b782022-12-21T18:21:54ZengMehran University of Engineering and TechnologyMehran University Research Journal of Engineering and Technology0254-78212413-72192017-10-013648198301612Comparative Study of White Layer Characteristics for Static and Rotating Workpiece during Electric Discharge MachiningSHAHID MEHMOODMASOOD SHAHBAKHT BAHADUR RANANAZEER AHMED ANJUMAMIR SULTANEDMed (Electric Discharge Machined) surfaces are unique in their appearance and metallurgical characteristics, which depend on different parameter such as electric parameters, flushing method, and dielectric type. Conventionally, in static workpiece method the EDM (Electric Discharge Machining) is performed by submerging both of the tool and workpiece in dielectric liquid and side flushing is provided by impinging pressurized dielectric liquid into the gap. Another flushing method has been investigated in this study, in which, instead of side flushing the rotation motion is provided to the workpiece. Surface characteristics for both flushing methods are determined and compared in this study. The investigated surface characteristics are: surface roughness, crater size, surface morphology, white layer thickness and composition. These investigations are performed using optical and SEM (Scanning Electron Microscope). Statistical confidence limits are determined for scattered data of surface roughness. It is found that the white layer thickness and surface roughness are directly proportional to discharge current for both flushing methods. The comparison has shown that the side flushing of statics workpiece gives thicker white layer and lower surface finish as compared to the flushing caused by the rotation of workpiecehttp://publications.muet.edu.pk/research_papers/pdf/pdf1612.pdfElectric Discharge MachiningAluminum AlloyWorkpiece RotationWhite Layer |
| spellingShingle | SHAHID MEHMOOD MASOOD SHAH BAKHT BAHADUR RANA NAZEER AHMED ANJUM AMIR SULTAN Comparative Study of White Layer Characteristics for Static and Rotating Workpiece during Electric Discharge Machining Mehran University Research Journal of Engineering and Technology Electric Discharge Machining Aluminum Alloy Workpiece Rotation White Layer |
| title | Comparative Study of White Layer Characteristics for Static and
Rotating Workpiece during Electric Discharge Machining |
| title_full | Comparative Study of White Layer Characteristics for Static and
Rotating Workpiece during Electric Discharge Machining |
| title_fullStr | Comparative Study of White Layer Characteristics for Static and
Rotating Workpiece during Electric Discharge Machining |
| title_full_unstemmed | Comparative Study of White Layer Characteristics for Static and
Rotating Workpiece during Electric Discharge Machining |
| title_short | Comparative Study of White Layer Characteristics for Static and
Rotating Workpiece during Electric Discharge Machining |
| title_sort | comparative study of white layer characteristics for static and rotating workpiece during electric discharge machining |
| topic | Electric Discharge Machining Aluminum Alloy Workpiece Rotation White Layer |
| url | http://publications.muet.edu.pk/research_papers/pdf/pdf1612.pdf |
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