Formability improvement in Ti-6Al-4 V sheet at room temperature by pulsating hydraulic bulging: experimental and numerical investigations

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dc.authoridAydin, Mevlut/0000-0001-5457-8340
dc.authoridLIVATYALI, HAYDAR/0000-0002-9542-2390
dc.authoridTurkoz, Mevlut/0000-0001-9692-5777
dc.authoridOZTURK, OSMAN/0000-0002-2814-6867
dc.authoridKOTAN, HASAN/0000-0001-9441-5175
dc.contributor.authorOzturk, Osman
dc.contributor.authorKorkmaz, Habip G.
dc.contributor.authorAtas, Gurkan
dc.contributor.authorAydin, Mevlut
dc.contributor.authorTurkoz, Mevlut
dc.contributor.authorToros, Serkan
dc.contributor.authorDilmec, Murat
dc.date.accessioned2024-11-07T13:35:01Z
dc.date.available2024-11-07T13:35:01Z
dc.date.issued2023
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractTi-6Al-4 V sheets possess limited formability at room temperature due to low ductility with almost no strain hardening. Pressure pulsation during hydroforming may bring significant improvement as an alternative to the widespread solution hot forming. However, much uncertainty exists on the deformation mechanism and effects of pulsating on difficult-to-form materials. In this study, the effect of pulsating pressure on the hydraulic bulge test was investigated to increase the limited formability of the Ti-6Al-4 V sheet at room temperature. Experimental results of thickness distribution and bulge height obtained from the bulge tests were compared with the finite element simulation results. The results show that the tests with pulsation allow a higher thickness reduction with a slightly more homogenous thickness distribution. Pulsation causes a delay in the material's failure resulting in a 15.4% increase in the dome height with a 17% increased burst pressure compared to monotonic loading. The underlying microstructural phenomena of increased formability were elaborated using dislocation estimations, fracture surface analysis, and hardness. Test results suggest that pulsation improves formability by 47% in terms of maximum elongation due to stress relaxation.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [219M489]
dc.description.sponsorshipThis research has been financially supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant Number 219M489. This work has also been extracted from OOE's dissertation.
dc.identifier.doi10.1007/s00170-022-10693-3
dc.identifier.endpage2918
dc.identifier.issn0268-3768
dc.identifier.issn1433-3015
dc.identifier.issue7-8
dc.identifier.scopus2-s2.0-85144377080
dc.identifier.scopusqualityQ1
dc.identifier.startpage2903
dc.identifier.urihttps://doi.org/10.1007/s00170-022-10693-3
dc.identifier.urihttps://hdl.handle.net/11480/16286
dc.identifier.volume124
dc.identifier.wosWOS:000901717600005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer London Ltd
dc.relation.ispartofInternational Journal of Advanced Manufacturing Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectSheet metal forming
dc.subjectPulsating hydroforming
dc.subjectFormability
dc.subjectTi-6Al-4 V
dc.titleFormability improvement in Ti-6Al-4 V sheet at room temperature by pulsating hydraulic bulging: experimental and numerical investigations
dc.typeArticle

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