The issue of multi-scale modeling of the filament-based material extrusion has received considerable critical attention for three-dimensional (3D) printing, which involves complex physicochemical phase transitions and thermodynamic behavior. The lack of a multi-scale theoretical model poses significant challenges for prediction in 3D printing processes driven by the rapidly evolving temperature field, including the nonuniformity of tracks, the spheroidization effect of materials, and inter-track voids. Few studies have systematically investigated the mapping relationship and established the numerical modeling between the physical environment and the virtual environment. In this paper, we develop a multi-scale system to describe the fused deposition process in the 3D printing process, which is coupled with the conductive heat transfer model and the dendritic solidification model. The simulation requires a computational framework with high performance because of the cumulative effect of heat transfer between different filament layers. The proposed system is capable of simulating the material state with the proper parameter at the macro- and micro-scale and is directly used to capture multiple physical phenomena. The main contribution of this paper is that we have established a totally integrated simulation system by considering multi-scale and multi-physical properties. We carry out several numerical tests to verify the robustness and efficiency of the proposed model.
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Multi-scale modeling and simulation of additive manufacturing based on fused deposition technique
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March 2023
Research Article|
March 21 2023
Multi-scale modeling and simulation of additive manufacturing based on fused deposition technique

Qing Xia (夏青)
;
Qing Xia (夏青)
(Conceptualization, Investigation, Methodology, Software, Visualization, Writing – original draft)
1
School of Mathematics and Statistics, Xi'an Jiaotong University
, Xi'an 710049, China
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Gangming Sun (孙港明);
Gangming Sun (孙港明)
(Conceptualization, Writing – original draft)
1
School of Mathematics and Statistics, Xi'an Jiaotong University
, Xi'an 710049, China
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Junseok Kim (김준석)
;
Junseok Kim (김준석)
(Methodology, Supervision, Writing – review & editing)
2
Department of Mathematics, Korea University
, Seoul 02841, South Korea
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Yibao Li (李义宝)
Yibao Li (李义宝)
a)
(Conceptualization, Methodology, Project administration, Software, Supervision, Writing – review & editing)
1
School of Mathematics and Statistics, Xi'an Jiaotong University
, Xi'an 710049, China
a)Author to whom correspondence should be addressed: yibaoli@xjtu.edu.cn. URL: http://gr.xjtu.edu.cn/web/yibaoli
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a)Author to whom correspondence should be addressed: yibaoli@xjtu.edu.cn. URL: http://gr.xjtu.edu.cn/web/yibaoli
Physics of Fluids 35, 034116 (2023)
Article history
Received:
January 05 2023
Accepted:
March 02 2023
Connected Content
A companion article has been published:
Mathematical model describes fused deposition for 3D printers
Citation
Qing Xia, Gangming Sun, Junseok Kim, Yibao Li; Multi-scale modeling and simulation of additive manufacturing based on fused deposition technique. Physics of Fluids 1 March 2023; 35 (3): 034116. https://doi.org/10.1063/5.0141316
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