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Volume 12
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10.3390/met12091477
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Article

Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting

by
Xiong Xiao
1,
Liangwen Xie
1,
Rongyao Tang
1,
Jiaan Liu
2,
Peng Song
1,
Xianyong Zhu
1,*,
Jiali Zhao
1,
Cheng Jiang
1,
Song Yang
1 and
Peng Wu
3
1
School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
2
College of Materials Science and Engineering, Jilin University, Changchun 130022, China
3
Changchun Baoze Technology Co., Ltd., Changchun 130051, China
*
Author to whom correspondence should be addressed.
Metals 2022, 12(9), 1477; https://doi.org/10.3390/met12091477
Submission received: 19 July 2022 / Revised: 28 August 2022 / Accepted: 2 September 2022 / Published: 5 September 2022
(This article belongs to the Special Issue Synthesis and Applications of Metallic Foams)
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Abstract

In recent years, the lattice structure produced by additive manufacturing is a type of metal foam that has been increasingly investigated for its unique mechanical properties. However, the conventional Computer-Aided Design (CAD) is inefficient, the triply periodic minimal surfaces are rarely mixed, and the smooth transitions at the boundaries are not considered. In this study, a hybrid optimization design method based on implicit surfaces is proposed, which combines multiple implicit surfaces to achieve the continuous change in the curvature at the structure junctions and reduce the stress concentration. The hybrid lattice structures designed by this method were additively manufactured using 316L alloy via a selective laser melting. The results of the finite element analysis and mechanical compression test show that the hybrid lattice structures generated by this method exhibit a higher yield strength and energy absorption. These works can be used for other implicit surfaces, improve and enrich the types of implicit surfaces, and provide more good choices for practical applications.
Keywords: metallic foams; fabrication; hybrid design; finite element analysis; compression test metallic foams; fabrication; hybrid design; finite element analysis; compression test

Share and Cite

MDPI and ACS Style

Xiao, X.; Xie, L.; Tang, R.; Liu, J.; Song, P.; Zhu, X.; Zhao, J.; Jiang, C.; Yang, S.; Wu, P. Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting. Metals 2022, 12, 1477. https://doi.org/10.3390/met12091477

AMA Style

Xiao X, Xie L, Tang R, Liu J, Song P, Zhu X, Zhao J, Jiang C, Yang S, Wu P. Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting. Metals. 2022; 12(9):1477. https://doi.org/10.3390/met12091477

Chicago/Turabian Style

Xiao, Xiong, Liangwen Xie, Rongyao Tang, Jiaan Liu, Peng Song, Xianyong Zhu, Jiali Zhao, Cheng Jiang, Song Yang, and Peng Wu. 2022. "Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting" Metals 12, no. 9: 1477. https://doi.org/10.3390/met12091477

APA Style

Xiao, X., Xie, L., Tang, R., Liu, J., Song, P., Zhu, X., Zhao, J., Jiang, C., Yang, S., & Wu, P. (2022). Improved Compressive Properties of Lattice Structure Based on an Implicit Surface Hybrid Optimization Design Method via Selective Laser Melting. Metals, 12(9), 1477. https://doi.org/10.3390/met12091477

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