Effect of surface characteristics on strain distribution in air- bending

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKaijalainen, Antti
dc.contributor.authorPokka, Aki-Petteri
dc.contributor.authorJaskari, Matias
dc.contributor.authorHuuki, Juha
dc.contributor.authorHintsala, Tommi
dc.contributor.authorKömi, Jukka
dc.contributor.departmentDepartment of Mechanical Engineeringen
dc.contributor.organizationUniversity of Oulu
dc.date.accessioned2024-09-25T06:05:58Z
dc.date.available2024-09-25T06:05:58Z
dc.date.issued2024-09-18
dc.description.abstractThis study is a continuation of previous studies; therefore, the idea is to determine the influence of surface roughness and hardness on the bendability of a UHSS grade, and it is investigated with 3-point bending tests, utilizing Digital Image Correlation (DIC) for measuring the strain distributions on the outer curvature. Investigated bending samples of a 4 mm thick commercial bainitic-martensitic steel sheet were tested in different surface conditions: (1) asrolled, (2) dry electropolished, (3) ultrasonic burnishing and (4) a combination of dry electropolishing and ultrasonic burnishing. Ultrasonic burnishing increased the surface hardness and decreased the surface roughness. Bending results showed that smoother surface did not lead to improved bending angles and higher hardness in the subsurface decreased the bending capacity, i.e., reduced the maximum bending angle and critical strain.en
dc.description.versionPeer revieweden
dc.format.extent8
dc.format.mimetypeapplication/pdf
dc.identifier.citationKaijalainen, A, Pokka, A-P, Jaskari, M, Huuki, J, Hintsala, T & Kömi, J 2024, Effect of surface characteristics on strain distribution in air- bending . in Metal Forming 2024 . Materials Research Proceedings, vol. 44, Materials Research Forum LLC, International Conference on Metal Forming, Krakow, Poland, 15/09/2024 . https://doi.org/10.21741/9781644903254-37en
dc.identifier.doi10.21741/9781644903254-37
dc.identifier.isbn978-1-64490-324-7
dc.identifier.isbn978-1-64490-325-4
dc.identifier.issn2474-3941
dc.identifier.issn2474-395X
dc.identifier.otherPURE UUID: 8c166fe5-f32f-45fe-b5b2-16f4b5d40242
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/8c166fe5-f32f-45fe-b5b2-16f4b5d40242
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/159435509/37.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/130962
dc.identifier.urnURN:NBN:fi:aalto-202409256505
dc.language.isoenen
dc.relation.ispartofMetal Forming 2024
dc.relation.ispartofInternational Conference on Metal Formingen
dc.relation.ispartofseriesMaterials Research Proceedings ; Volume 44en
dc.rightsopenAccessen
dc.subject.keywordroughness
dc.subject.keywordhardness
dc.subject.keywordbendability
dc.subject.keywordDIC
dc.subject.keywordultra-high strength steel
dc.titleEffect of surface characteristics on strain distribution in air- bendingen
dc.typeA4 Artikkeli konferenssijulkaisussafi
dc.type.versionpublishedVersion
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