Wire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusion

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dc.authoridCERITBINMEZ, Ferhat/0000-0002-5615-3124
dc.authoridNakano, Takayoshi/0000-0001-8052-1698
dc.authoridGokcekaya, Ozkan/0000-0002-9258-858X
dc.authoridcetin, Melik/0000-0002-6952-2523
dc.contributor.authorGokcekaya, Ozkan
dc.contributor.authorGunen, Ali
dc.contributor.authorCeritbinmez, Ferhat
dc.contributor.authorBahador, Abdollah
dc.contributor.authorNakano, Takayoshi
dc.contributor.authorCetin, Melik
dc.date.accessioned2024-09-29T15:51:01Z
dc.date.available2024-09-29T15:51:01Z
dc.date.issued2024
dc.departmentKarabük Üniversitesien_US
dc.description.abstractInconel 718 alloy is difficult to machine using conventional methods due to its physical properties. Thereby, additive manufacturing (AM) of IN718 components with near-net shapes has been extensively studied. Even though AM processes provide shape and size accuracy, there is still the need for the machining of the AM-processed components to achieve the final shape of a component. Laser powder bed fusion (LPBF) has been successfully utilized to fabricate near-net shape IN718 components; moreover, the microstructure of LPBF-IN718 was unique owing to the AM processing, resulting in differences in grain size, grain boundary characteristics, and grain orientations. Furthermore, these microstructural characteristics are expected to alter the machining performance of IN718. Therefore, this study investigated the wire electro-discharge machining (WEDM) performance of LPBF-718 samples compared to wrought IN718 while focusing on the unique microstructure characteristics of LPBF-IN718 samples (lamella, single-crystal, ploy-crystal). Three different cutting strategies (rough, semi-finish, and finish) were implemented to understand the performance of the multi-pass cutting phenomenon and its effect on the surface of IN718. For all samples, rough (single pass) cutting displayed high roughness, while finish (three passes) cutting exhibited good surface quality. Compositional analyses on the machined surface showed debris formation including Zn and Cu-containing recast material, indicating wire erosion. The surface of single-crystal LPBF-IN718 after the WEDM process was smooth owing to its large grain size and less amount of grain boundary, resulting in slow cutting speed but a good surface finish. Thus, this study, for the first time, investigated the effect of unique microstructural characteristics of LPBF-fabricated IN718 on WEDM performance and machined surface quality.en_US
dc.description.sponsorshipJapan Society for the Promotion of Scienceen_US
dc.description.sponsorshipNo Statement Availableen_US
dc.identifier.doi10.1007/s00170-023-12924-7
dc.identifier.endpage4528en_US
dc.identifier.issn0268-3768
dc.identifier.issn1433-3015
dc.identifier.issue9-10en_US
dc.identifier.scopus2-s2.0-85182429056en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage4513en_US
dc.identifier.urihttps://doi.org/10.1007/s00170-023-12924-7
dc.identifier.urihttps://hdl.handle.net/20.500.14619/3825
dc.identifier.volume130en_US
dc.identifier.wosWOS:001143742000012en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer London Ltden_US
dc.relation.ispartofInternational Journal of Advanced Manufacturing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectInconel 718en_US
dc.subjectLPBFen_US
dc.subjectWEDMen_US
dc.subjectMRRen_US
dc.subjectSurface roughnessen_US
dc.titleWire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusionen_US
dc.typeArticleen_US

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