Particle migration and surface modification on Ti6Al4V in SiC powder mixed electrical discharge machining

The study examines the impact of SiC powder concentration on surface topography, particles deposition and subsurface structures in powder mixed electrical discharge machining (PMEDM) of Ti-6Al-4V-ELI work material. It was observed that low pulse currents and high suspended particle concentration in dielectric liquid enhance the material transfer mechanism in particulate form. The subsurface properties of such surfaces exhibited a distinctive and harder re-solidified layer structure that indicates a unique material transfer mechanism takes place during machining. The particles placed close to a discharge column directed towards the melted metal pool due to the sudden closure of the plasma channel. When the main discharge channel subdivided into several secondary discharges, the suspended particles in dielectric liquid stuck among the scattered sub discharges and increased the probability of penetrating into the melted metal pool at the end of a discharge. Therefore, the formation of secondary discharges favoured the improved SiC transfer in particulate form. However, increasing the pulse current deplete the material transfer mechanism in particulate form due to the inadequacy of secondary discharges. © 2018

Yazar Öpöz T.T.
Yaşar H.
Ekmekci N.
Ekmekci B.
Yayın Türü Article
Tek Biçim Adres https://hdl.handle.net/20.500.12628/6927
Tek Biçim Adres 10.1016/j.jmapro.2018.01.002
Konu Başlıkları Particle migration
Powder mixed electrical discharge machining
Ti-6Al-4V
Koleksiyonlar Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı Journal of Manufacturing Processes
Dergi Cilt Bilgisi 31
Sayfalar 744 - 758
Yayın Yılı 2018
Eser Adı
[dc.title]
Particle migration and surface modification on Ti6Al4V in SiC powder mixed electrical discharge machining
Yazar
[dc.contributor.author]
Öpöz T.T.
Yazar
[dc.contributor.author]
Yaşar H.
Yazar
[dc.contributor.author]
Ekmekci N.
Yazar
[dc.contributor.author]
Ekmekci B.
Yayın Yılı
[dc.date.issued]
2018
Yayıncı
[dc.publisher]
Elsevier Ltd
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
The study examines the impact of SiC powder concentration on surface topography, particles deposition and subsurface structures in powder mixed electrical discharge machining (PMEDM) of Ti-6Al-4V-ELI work material. It was observed that low pulse currents and high suspended particle concentration in dielectric liquid enhance the material transfer mechanism in particulate form. The subsurface properties of such surfaces exhibited a distinctive and harder re-solidified layer structure that indicates a unique material transfer mechanism takes place during machining. The particles placed close to a discharge column directed towards the melted metal pool due to the sudden closure of the plasma channel. When the main discharge channel subdivided into several secondary discharges, the suspended particles in dielectric liquid stuck among the scattered sub discharges and increased the probability of penetrating into the melted metal pool at the end of a discharge. Therefore, the formation of secondary discharges favoured the improved SiC transfer in particulate form. However, increasing the pulse current deplete the material transfer mechanism in particulate form due to the inadequacy of secondary discharges. © 2018
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Particle migration
Konu Başlıkları
[dc.subject]
Powder mixed electrical discharge machining
Konu Başlıkları
[dc.subject]
Ti-6Al-4V
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1526-6125
İlk Sayfa Sayısı
[dc.identifier.startpage]
744
Son Sayfa Sayısı
[dc.identifier.endpage]
758
Dergi Adı
[dc.relation.journal]
Journal of Manufacturing Processes
Dergi Cilt Bilgisi
[dc.identifier.volume]
31
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/j.jmapro.2018.01.002
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6927
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
5
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
25 Aralık 2023 03:38
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Tıklayınız
material discharge discharges transfer mechanism particulate secondary particles channel melted liquid dielectric suspended machining subsurface powder concentration probability deplete closure plasma current sudden inadequacy towards subdivided increasing several increased However improved favoured formation Therefore scattered
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

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