Effects of Ar-He shielding gas mixture on mechanical and metallurgical properties of weld metal in laser welding of 6061 T6 aluminium alloy

Basit Öğe Kaydı
dc.authoridGundogdu Is, Emine/0000-0002-7614-9165
dc.authorwosidGündoğdu İş, Emine/IXD-5493-2023
dc.contributor.authorGuendogdu Is, Emine
dc.contributor.authorYilmaz, Muharrem
dc.date.accessioned2024-06-13T20:18:28Z
dc.date.available2024-06-13T20:18:28Z
dc.date.issued2021
dc.departmentİstanbul Gedik Üniversitesi
dc.description.abstractIn this study, a 6 mm-thick 6061 T6 aluminum alloy was welded using fiber laser welding, and its mechanical and metallurgical properties were investigated. Full penetration autogenous welds were made at a constant laser power of 4.95 kW using a continuous-wave fiber laser and focal positions of -4 mm. In addition, the shielding gas content was changed for weldments welded at different travel speeds (mm s(-1)). Accordingly, welding speeds were 50, 40, 35, 25, and 20 mm s(-1), and the shielding gas contents were 100% argon (Ar), 10% helium (He) + 90% Ar, 30% He + 70% Ar, 50% He + 50% Ar, and 75% He + 25% Ar. Then, macro and micro images were taken, and some mechanical properties (hardness, tensile test, and bending test) were examined. As a result, the change in shielding gas content and welding speed has provided significant variations in the welding joints. Decreases in mechanical properties were detected due to the coarsening of the precipitates. On the other hand, the narrowness of the weld seam and HAZ obtained in laser welding, compared to traditional welding methods, minimizes this disadvantage.
dc.description.sponsorshipKocaeli University Scientific Research Projects unit [BAP: 2017/119]
dc.description.sponsorshipThis study was supported by Kocaeli University Scientific Research Projects unit with Project No. BAP: 2017/119. Welding processes were carried out at IPG PHOTONICS, some of the mechanical tests were carried out at Istanbul Gedik University Welding Technologies Application and Research Center and some at Gedik Education Foundation Gedik Test Center.
dc.identifier.doi10.2351/7.0000414
dc.identifier.issn1042-346X
dc.identifier.issn1938-1387
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85116518128
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.2351/7.0000414
dc.identifier.urihttps://hdl.handle.net/11501/1387
dc.identifier.volume33
dc.identifier.wosWOS:000701416200003
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAip Publishing
dc.relation.ispartofJournal of Laser Applications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subject6061 T6 Al Alloys Welding
dc.subjectFiber Laser Welding
dc.subjectAr-He Shielding Gas
dc.subjectLaser Welding Speed
dc.subjectPorosity Defect
dc.subjectProcess Parameters
dc.subjectMicrostructure
dc.subjectQuality
dc.subjectPenetration
dc.subjectAl
dc.titleEffects of Ar-He shielding gas mixture on mechanical and metallurgical properties of weld metal in laser welding of 6061 T6 aluminium alloy
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu