Residual deformation analysis of laser powder bed fusion-fabricated lattice structures
Lattice structures are crucial for weight reduction, and laser powder bed fusion (LPBF) is an efficient fabrication method. However, there's a notable research gap in understanding the residual deformation of LPBF-fabricated lattice structures. This study investigates the residual deformation o...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2024
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| Online Access: | https://hdl.handle.net/10356/181275 |
| _version_ | 1826122435690233856 |
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| author | Wang, Yilong Zhu, Haihong Xiao, Meili Chen, Changpeng Qi, Ying Ke, Linda |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wang, Yilong Zhu, Haihong Xiao, Meili Chen, Changpeng Qi, Ying Ke, Linda |
| author_sort | Wang, Yilong |
| collection | NTU |
| description | Lattice structures are crucial for weight reduction, and laser powder bed fusion (LPBF) is an efficient fabrication method. However, there's a notable research gap in understanding the residual deformation of LPBF-fabricated lattice structures. This study investigates the residual deformation of three basic lattice structures, body centre cell (BCC), face centre cell (FCC), and diamond cell (DC), fabricated via LPBF to reveal their deformation mechanisms. Analysis covers horizontal direction, building direction, and total deformations, unveiling complex structural responses. Lower relative densities exhibit a prevalent structural deformation mode (SDM) causing significant deformations, while higher densities shift to an intrinsic deformation mode (IDM) dominated by contraction during fabrication. The FCC structure shows optimal stability with minimal residual deformation across most densities. This study offers insightful findings and a detailed mechanistic analysis of residual deformation in LPBF-fabricated lattice structures, applicable across various configurations, ensuring design process uniformity and reliability. |
| first_indexed | 2025-03-09T13:14:25Z |
| format | Journal Article |
| id | ntu-10356/181275 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T13:14:25Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1812752024-11-23T16:49:04Z Residual deformation analysis of laser powder bed fusion-fabricated lattice structures Wang, Yilong Zhu, Haihong Xiao, Meili Chen, Changpeng Qi, Ying Ke, Linda School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering Laser powder bed fusion Lattice Lattice structures are crucial for weight reduction, and laser powder bed fusion (LPBF) is an efficient fabrication method. However, there's a notable research gap in understanding the residual deformation of LPBF-fabricated lattice structures. This study investigates the residual deformation of three basic lattice structures, body centre cell (BCC), face centre cell (FCC), and diamond cell (DC), fabricated via LPBF to reveal their deformation mechanisms. Analysis covers horizontal direction, building direction, and total deformations, unveiling complex structural responses. Lower relative densities exhibit a prevalent structural deformation mode (SDM) causing significant deformations, while higher densities shift to an intrinsic deformation mode (IDM) dominated by contraction during fabrication. The FCC structure shows optimal stability with minimal residual deformation across most densities. This study offers insightful findings and a detailed mechanistic analysis of residual deformation in LPBF-fabricated lattice structures, applicable across various configurations, ensuring design process uniformity and reliability. Published version This work is supported by the Defense Industrial Technology Development Program (JCKY202XXXXA006). 2024-11-21T06:34:53Z 2024-11-21T06:34:53Z 2024 Journal Article Wang, Y., Zhu, H., Xiao, M., Chen, C., Qi, Y. & Ke, L. (2024). Residual deformation analysis of laser powder bed fusion-fabricated lattice structures. Virtual and Physical Prototyping, 19(1), e2367104-. https://dx.doi.org/10.1080/17452759.2024.2367104 1745-2767 https://hdl.handle.net/10356/181275 10.1080/17452759.2024.2367104 2-s2.0-85198049371 1 19 e2367104 en Virtual and Physical Prototyping © 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent. application/pdf |
| spellingShingle | Engineering Laser powder bed fusion Lattice Wang, Yilong Zhu, Haihong Xiao, Meili Chen, Changpeng Qi, Ying Ke, Linda Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title | Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title_full | Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title_fullStr | Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title_full_unstemmed | Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title_short | Residual deformation analysis of laser powder bed fusion-fabricated lattice structures |
| title_sort | residual deformation analysis of laser powder bed fusion fabricated lattice structures |
| topic | Engineering Laser powder bed fusion Lattice |
| url | https://hdl.handle.net/10356/181275 |
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