Study of unmachined area in intricate machining after rough cut in WEDM

Wire electrical discharge machining (WEDM) is well known process for generating intricate and complex profiles in hard metal matrix composites. But damaged surface layer with poor surface integrity is a major disadvantage of WEDM. Beside poor damaged surface layer, after rough/first cut in WEDM, som...

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Main Author: Kamal Jangra
Format: Article
Language:English
Published: Growing Science 2012-10-01
Series:International Journal of Industrial Engineering Computations
Subjects:
Online Access:http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_47.pdf
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author Kamal Jangra
author_facet Kamal Jangra
author_sort Kamal Jangra
collection DOAJ
description Wire electrical discharge machining (WEDM) is well known process for generating intricate and complex profiles in hard metal matrix composites. But damaged surface layer with poor surface integrity is a major disadvantage of WEDM. Beside poor damaged surface layer, after rough/first cut in WEDM, some surface area remains unmachined on work surface during intricate machining such as in die cutting. This paper presents a study on unmachined surface area named as surface projection, in die cutting after rough cut in WEDM. Using scanning electron microscope images, length of unmachined surface projections have been determined. In order to minimize these surface projections from small cavities having complex geometries, trim cutting operation is the best alternative. Results show that using more than one trim cut with appropriate wire offset value, surface projections can be minimized, successfully.
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spelling doaj.art-fd0d699bf7bf4891888e68ae0b291c9b2022-12-21T23:18:28ZengGrowing ScienceInternational Journal of Industrial Engineering Computations1923-29261923-29342012-10-0135887892Study of unmachined area in intricate machining after rough cut in WEDMKamal JangraWire electrical discharge machining (WEDM) is well known process for generating intricate and complex profiles in hard metal matrix composites. But damaged surface layer with poor surface integrity is a major disadvantage of WEDM. Beside poor damaged surface layer, after rough/first cut in WEDM, some surface area remains unmachined on work surface during intricate machining such as in die cutting. This paper presents a study on unmachined surface area named as surface projection, in die cutting after rough cut in WEDM. Using scanning electron microscope images, length of unmachined surface projections have been determined. In order to minimize these surface projections from small cavities having complex geometries, trim cutting operation is the best alternative. Results show that using more than one trim cut with appropriate wire offset value, surface projections can be minimized, successfully.http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_47.pdfWire electrical discharge machiningUnmachined surface areaTrim cut
spellingShingle Kamal Jangra
Study of unmachined area in intricate machining after rough cut in WEDM
International Journal of Industrial Engineering Computations
Wire electrical discharge machining
Unmachined surface area
Trim cut
title Study of unmachined area in intricate machining after rough cut in WEDM
title_full Study of unmachined area in intricate machining after rough cut in WEDM
title_fullStr Study of unmachined area in intricate machining after rough cut in WEDM
title_full_unstemmed Study of unmachined area in intricate machining after rough cut in WEDM
title_short Study of unmachined area in intricate machining after rough cut in WEDM
title_sort study of unmachined area in intricate machining after rough cut in wedm
topic Wire electrical discharge machining
Unmachined surface area
Trim cut
url http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_47.pdf
work_keys_str_mv AT kamaljangra studyofunmachinedareainintricatemachiningafterroughcutinwedm