Hopping Light Vat Photopolymerization for Multiscale Fabrication

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorXu, Yangen_US
dc.contributor.authorMao, Huachaoen_US
dc.contributor.authorLiu, Cenyien_US
dc.contributor.authorDu, Zhengyuen_US
dc.contributor.authorYan, Weijiaen_US
dc.contributor.authorYang, Zhuoyuanen_US
dc.contributor.authorPartanen, Jounien_US
dc.contributor.authorChen, Yongen_US
dc.contributor.departmentDepartment of Mechanical Engineeringen
dc.contributor.groupauthorAdvanced Manufacturing and Materialsen
dc.contributor.organizationUniversity of Southern Californiaen_US
dc.contributor.organizationPurdue Universityen_US
dc.date.accessioned2023-04-26T08:39:54Z
dc.date.available2023-04-26T08:39:54Z
dc.date.issued2023-03-15en_US
dc.descriptionFunding Information: Y.X. and H.M. contributed equally to this work. The authors acknowledge the support from National Science Foundation (NSF) (Grant Nos. CMMI 1151191, 1335476, and 1812675). Publisher Copyright: © 2022 The Authors. Small published by Wiley-VCH GmbH.
dc.description.abstract3D objects with features spanning from microscale to macroscale have various applications. However, the fabrication of such objects presents challenges to additive manufacturing (AM) due to the tradeoffs among manufacturable feature resolution, maximum build area, and printing speed. This paper presents a projection-based AM process called hopping light vat photopolymerization (HL-VPP) to address this critical barrier. The key idea of HL-VPP is to synchronize linear scanning projection with a galvo mirror's rotation. The projector moves continuously at a constant speed while periodically rotating a one-axis galvo mirror to compensate for the projector's linear movement so synchronized hopping motion can be achieved. By this means, HL-VPP can simultaneously achieve large-area (over 200 mm), fast-speed (scanning speed of 13.5 mm s-1), and high-resolution (10 µm pixel size) fabrication. The distinguishing characteristic of HL-VPP is that it allows for hundreds of times lower refresh rates without motion blur. Thus, HL-VPP decouples the fabrication efficiency limit imposed by the refresh rate and will enable super-fast curing in the future. This work will significantly advance VPP's use in applications that require macroscale part size with microscale features. The process has been verified by fabricating multiple multiscale objects, including microgrids and biomimetic structures.en
dc.description.versionPeer revieweden
dc.format.extent13
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationXu, Y, Mao, H, Liu, C, Du, Z, Yan, W, Yang, Z, Partanen, J & Chen, Y 2023, ' Hopping Light Vat Photopolymerization for Multiscale Fabrication ', Small, vol. 19, no. 11, 2205784 . https://doi.org/10.1002/smll.202205784en
dc.identifier.doi10.1002/smll.202205784en_US
dc.identifier.issn1613-6810
dc.identifier.issn1613-6829
dc.identifier.otherPURE UUID: 6b3790fe-6ec5-479a-8939-d45a4449c151en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/6b3790fe-6ec5-479a-8939-d45a4449c151en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85144365503&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/106372711/Small_2022_Xu_Hopping_Light_Vat_Photopolymerization_for_Multiscale_Fabrication.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/120532
dc.identifier.urnURN:NBN:fi:aalto-202304262854
dc.language.isoenen
dc.publisherWILEY-VCH VERLAG
dc.relation.ispartofseriesSmallen
dc.relation.ispartofseriesVolume 19, issue 11en
dc.rightsopenAccessen
dc.subject.keywordadditive manufacturingen_US
dc.subject.keywordcomputer visionen_US
dc.subject.keywordhopping lighten_US
dc.subject.keywordmultiscaleen_US
dc.subject.keywordvat photopolymerizationen_US
dc.titleHopping Light Vat Photopolymerization for Multiscale Fabricationen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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