Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/107384
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Qu, S | - |
dc.creator | Wang, L | - |
dc.creator | Ding, J | - |
dc.creator | Fu, J | - |
dc.creator | Gao, S | - |
dc.creator | Ma, Q | - |
dc.creator | Liu, H | - |
dc.creator | Fu, M | - |
dc.creator | Lu, Y | - |
dc.creator | Song, X | - |
dc.date.accessioned | 2024-06-18T09:02:21Z | - |
dc.date.available | 2024-06-18T09:02:21Z | - |
dc.identifier.uri | http://hdl.handle.net/10397/107384 | - |
dc.language.iso | en | en_US |
dc.publisher | MDPI AG | en_US |
dc.rights | Copyright: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | en_US |
dc.rights | The following publication Qu S, Wang L, Ding J, Fu J, Gao S, Ma Q, Liu H, Fu M, Lu Y, Song X. Superelastic NiTi Functional Components by High-Precision Laser Powder Bed Fusion Process: The Critical Roles of Energy Density and Minimal Feature Size. Micromachines. 2023; 14(7):1436 is availblae at https://doi.org/10.3390/mi14071436. | en_US |
dc.subject | 3D printing | en_US |
dc.subject | Energy density | en_US |
dc.subject | Laser powder bed fusion | en_US |
dc.subject | Mechanical testing | en_US |
dc.subject | NiTi alloy | en_US |
dc.subject | Robotic cannula | en_US |
dc.subject | TPMS lattice | en_US |
dc.title | Superelastic NiTi functional components by high-precision laser powder bed fusion process : the critical roles of energy density and minimal feature size | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 14 | - |
dc.identifier.issue | 7 | - |
dc.identifier.doi | 10.3390/mi14071436 | - |
dcterms.abstract | Additive manufacturing (AM) was recently developed for building intricate devices in many fields. Especially for laser powder bed fusion (LPBF), its high-precision manufacturing capability and adjustable process parameters are involved in tailoring the performance of functional components. NiTi is well-known as smart material utilized widely in biomedical fields thanks to its unique superelastic and shape-memory performance. However, the properties of NiTi are extremely sensitive to material microstructure, which is mainly determined by process parameters in LPBF. In this work, we choose a unique NiTi intricate component: a robotic cannula tip, in which material superelasticity is a crucial requirement as the optimal object. First, the process window was confirmed by printing thin walls and bulk structures. Then, for optimizing parameters precisely, a Gyroid-type sheet triply periodic minimal-surface (G-TPMS) structure was proposed as the standard test sample. Finally, we verified that when the wall thickness of the G-TPMS structure is smaller than 130 μm, the optimal energy density changes from 167 J/m3 to 140 J/m3 owing to the lower cooling rate of thinner walls. To sum up, this work puts forward a novel process optimization methodology and provides the processing guidelines for intricate NiTi components by LPBF. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Micromachines, July 2023, v. 14, no. 7, 1436 | - |
dcterms.isPartOf | Micromachines | - |
dcterms.issued | 2023-07 | - |
dc.identifier.scopus | 2-s2.0-85166225075 | - |
dc.identifier.eissn | 2072-666X | - |
dc.identifier.artn | 1436 | - |
dc.description.validate | 202406 bcch | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | a2828b | en_US |
dc.identifier.SubFormID | 48532 | en_US |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong; Changsha Municipal Science and Technology Bureau under Project; City University of Hong Kong | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | CC | en_US |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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micromachines-14-01436.pdf | 4.84 MB | Adobe PDF | View/Open |
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