Development of porous customized Ti-6Al-4V cranial implant manufactured by laser beam powder bed fusion

dc.authorid0000-0002-0822-0791
dc.authorid0000-0002-2683-560X
dc.contributor.authorEksi Altan, Mihrigul
dc.contributor.authorAcar, Alperen
dc.contributor.authorOzen, Seyhan
dc.contributor.authorGuldorum, Yeliz
dc.contributor.authorKulle, Eren
dc.contributor.authorApaydinli, Berke
dc.contributor.authorGunay, Abdulkadir
dc.date.accessioned2026-01-31T15:08:44Z
dc.date.available2026-01-31T15:08:44Z
dc.date.issued2025
dc.departmentİstanbul Beykent Üniversitesi
dc.description.abstractCustomized cranial implants play a crucial role in neurosurgery, serving to restore cranial integrity and protect the underlying brain tissue after trauma or surgical intervention. Ti-6Al-4V cranial implants exhibit high mechanical strength; however, their solid forms can be excessively heavy and possess a high elastic modulus, leading to stress shielding effects. This study focuses on designing a cranial implant utilizing computer tomography data, incorporating different lattice and porous structures to optimize weight and mechanical performance. The analysis, conducted with nTop software, compared displacement and von Mises stress values across different structures. The isotruss lattice structure emerged as the most effective, achieving a weight reduction of approximately 50% while maintaining a von Mises stress of 40 MPa. Following the computational analysis, Laser Beam Powder Bed Fusion (PBF-LB) was employed to fabricate the isotruss implant and the compression test was performed to mimic the cranial implant under realistic conditions. The isotruss lattice cranial implant exhibited a remarkable load-bearing capacity of up to 18,000 N while achieving a 50% weight reduction compared to the solid implant, indicating that this lightweight structure not only offers high-performance load-bearing capabilities but also shows great potential for use in surgical applications.
dc.description.sponsorshipYildiz Teknik niversitesi [FBG-2022-5239]; Scientific Research Council of Yildiz Technical University
dc.description.sponsorshipThe authors would like to thank to The Scientific Research Council of Yildiz Technical University for their support in scope of the research project [Project Number: FBG-2022-5239].
dc.identifier.doi10.1177/09544119251351733
dc.identifier.endpage745
dc.identifier.issn0954-4119
dc.identifier.issn2041-3033
dc.identifier.issue8
dc.identifier.pmid40876815
dc.identifier.scopus2-s2.0-105012525317
dc.identifier.scopusqualityQ1
dc.identifier.startpage736
dc.identifier.urihttps://doi.org./10.1177/09544119251351733
dc.identifier.urihttps://hdl.handle.net/20.500.12662/10744
dc.identifier.volume239
dc.identifier.wosWOS:001537254800001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofProceedings of the Institution of Mechanical Engineers Part H-Journal of Engineering in Medicine
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260128
dc.subjectCranial
dc.subjectporous structure
dc.subjectTi-6Al-4V
dc.subjectcustom implant
dc.subjectadditive manufacturing
dc.subjectcompression
dc.titleDevelopment of porous customized Ti-6Al-4V cranial implant manufactured by laser beam powder bed fusion
dc.typeArticle

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