Enhancing formability of Ti-6Al-4V cylindrical cups by pulsating hydroforming process: Experimental, numerical and microstructural investigations

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dc.authorid0000-0002-9001-9412
dc.authorid0000-0001-9441-5175
dc.authorid0000-0002-2814-6867
dc.authorid0000-0001-9684-4117
dc.authorid0000-0003-2670-7912
dc.authorid0000-0001-5457-8340
dc.authorid0000-0002-9542-2390
dc.contributor.authorOzturk, Osman
dc.contributor.authorAydin, Mevlut
dc.contributor.authorGokcepinar, Omer Faruk
dc.contributor.authorIlbeyli, Harun Mert
dc.contributor.authorKorkmaz, Habip Gokay
dc.contributor.authorYapan, Yusuf Furkan
dc.contributor.authorTurkoz, Mevlut
dc.date.accessioned2026-02-08T15:15:20Z
dc.date.available2026-02-08T15:15:20Z
dc.date.issued2024
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractTi-6Al-4V alloy sheet is an engineering material that is widely used due to its superior properties such as high strength-to-density ratio besides high temperature and corrosion resistance. However, its low formability at room temperature limits its wider applications. In this study, a cylindrical cup was hydroformed using a female die to examine how the pulsating effect would result under frictional conditions. Initially, finite element simulations were performed to design a proper die geometry. Next, forming tests were run on Ti-6Al-4V blanks under pressure increased monotonically and with pulsation, and microstructural analyses were performed on the formed specimens. The effects of pulsation frequency, amplitude, and base pressure on the formability were investigated. The nose radius/thickness ratio, maximum thinning, bursting pressure, and die-filling ratio measured on the specimens formed under monotonic and pulsating loadings were compared, and the improvement in the formability was demonstrated. An increase of 38.5 % in bursting pressure occurred and the nose radius of the part was decreased up to 30 % with pulsating loading. The die-filling ratio was improved from 87.9 % to 95.3 % with optimized pulsation parameters. The underlying microstructural reasons for the improved formability were elaborated using XRD, SEM, and TEM analyses.
dc.description.sponsorshipScientific and Technological Research Council of Trkiye (TUBITAK) [219M489]
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Tuerkiye (TUBITAK) [grant number 219M489] .
dc.identifier.doi10.1016/j.jestch.2023.101606
dc.identifier.issn2215-0986
dc.identifier.scopus2-s2.0-85182574907
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jestch.2023.101606
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5727
dc.identifier.volume50
dc.identifier.wosWOS:001164936000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier - Division Reed Elsevier India Pvt Ltd
dc.relation.ispartofEngineering Science and Technology-An International Journal-Jestech
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectPulsating Hydroforming
dc.subjectTi-6Al-4V
dc.subjectFormability
dc.subjectMicrostructural characterization
dc.subjectSheet metal forming
dc.titleEnhancing formability of Ti-6Al-4V cylindrical cups by pulsating hydroforming process: Experimental, numerical and microstructural investigations
dc.typeArticle

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