Effect of machining polarity on single discharge characteristics in micro-EDM

Effect of machining polarity on single discharge characteristics in micro-EDM

In micro electrical discharge machining (micro-EDM), polarity effect is attributed to the difference in energy distribution into the anode and cathode. Understanding the effect of machining polarity on energy distribution bears significance in predicting and controlling machining performances. Singl...

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Main Authors: Wang Kan, Liu Yong
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/51/e3sconf_reee2020_04004.pdf
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spelling doaj-15c658c598e84c60876e7c752fb84d7d2021-04-02T18:16:38ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011910400410.1051/e3sconf/202019104004e3sconf_reee2020_04004Effect of machining polarity on single discharge characteristics in micro-EDMWang KanLiu YongIn micro electrical discharge machining (micro-EDM), polarity effect is attributed to the difference in energy distribution into the anode and cathode. Understanding the effect of machining polarity on energy distribution bears significance in predicting and controlling machining performances. Single discharge experiments were conducted in this study, to explore single discharge characteristics. The plasma radius and energy distribution were calculated by combining the crater size and the electro-thermal model. The results show that the influence of discharge current on crater depth-to-diameter ratio (H/D) is not significant with positive polarity. The plasma radius, fraction of energy transferred to workpiece, and crater size are greater for micro-EDM with negative polarity than positive polarity.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/51/e3sconf_reee2020_04004.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Wang Kan
Liu Yong
spellingShingle Wang Kan
Liu Yong
Effect of machining polarity on single discharge characteristics in micro-EDM
E3S Web of Conferences
author_facet Wang Kan
Liu Yong
author_sort Wang Kan
title Effect of machining polarity on single discharge characteristics in micro-EDM
title_short Effect of machining polarity on single discharge characteristics in micro-EDM
title_full Effect of machining polarity on single discharge characteristics in micro-EDM
title_fullStr Effect of machining polarity on single discharge characteristics in micro-EDM
title_full_unstemmed Effect of machining polarity on single discharge characteristics in micro-EDM
title_sort effect of machining polarity on single discharge characteristics in micro-edm
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2020-01-01
description In micro electrical discharge machining (micro-EDM), polarity effect is attributed to the difference in energy distribution into the anode and cathode. Understanding the effect of machining polarity on energy distribution bears significance in predicting and controlling machining performances. Single discharge experiments were conducted in this study, to explore single discharge characteristics. The plasma radius and energy distribution were calculated by combining the crater size and the electro-thermal model. The results show that the influence of discharge current on crater depth-to-diameter ratio (H/D) is not significant with positive polarity. The plasma radius, fraction of energy transferred to workpiece, and crater size are greater for micro-EDM with negative polarity than positive polarity.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/51/e3sconf_reee2020_04004.pdf
work_keys_str_mv AT wangkan effectofmachiningpolarityonsingledischargecharacteristicsinmicroedm
AT liuyong effectofmachiningpolarityonsingledischargecharacteristicsinmicroedm
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