Global-optimization-based model decomposition for support-free multi-DOF 3D printing

Wu, Lifang; Gao, Yisong; Yu, Miao; Jian, Meng; Liu, Zechao; Guan, Yupeng

doi:10.1145/3283289.3283352

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…A lattice in ll structure generation method is researched by considering both the self-supporting condition for the in ll and the support-free requirement at the boundary surface of the part [11]. A global-optimal decomposition method for minimizing the surface area to be supported [12,13], an accelerated decomposition algorithm based on neutral network [14], wire and arc additive manufacturing method with surface/interior separation and surface segmentation [15] etc. The support-free printing methods mentioned above require rapid cooling of extruded materials, otherwise they will sag due to the gravity.…”

Section: Introductionmentioning

confidence: 99%

Study on Support-Free Printing of Large-Flow Material Extrusion Process

Wang²,

2023

Int J Adv Manuf Technol

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Support-free printing is one of the research hotspots of material extrusion process. During the large extrusion ow printing, if there is no support, when printing bridge or suspended structure, the sagging of material probably cause printing failure due to the large weight of extrusion part and its fusion state. If the support is added, it will be very di cult to remove due to its large adhesion with the matrix. Therefore, large extrusion ow printing process is more willing to print structures without support, the large and complex structures are often di cult to print. In order to realize support-free printing of bridge structure, this paper de nes a concept of quantitative fusing segment and analyzes its dynamic balance characteristics during the pellet extrusion printing process. Then the printing speed reduction and air cooling scheme according to the analysis conclusion is put forward, and the experimental veri cation is carried out. The results show that the sag deformation of bridge structure can be reduced effectively. This will provide some theoretical and experimental support for large-ow support-free printing.

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Section: Introductionmentioning

confidence: 99%

Study on Support-Free Printing of Large-Flow Material Extrusion Process

Wang²,

2023

Int J Adv Manuf Technol

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Cylindricity and flatness optimization for mechanical parts in additive manufacturing based on tolerance adaptive slicing

Chen

Zhang

2021

Int J Adv Manuf Technol

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Study on Support-free Printing of Large-flow Material Extrusion Process

Xiao²,

Li³

2022

Preprint

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Support-free printing is one of the research hotspots of material extrusion process. During the large extrusion flow printing, if there is no support, when printing bridge or suspended structure, the sagging of material probably cause printing failure due to the large weight of extrusion part and its fusion state. If the support is added, it will be very difficult to remove due to its large adhesion with the matrix. Therefore, large extrusion flow printing process is more willing to print structures without support, the large and complex structures are often difficult to print. In order to realize support-free printing of bridge structure, this paper defines a concept of quantitative fusing segment and analyzes its dynamic balance characteristics during the pellet extrusion printing process. Then the printing speed reduction and air cooling scheme according to the analysis conclusion is put forward, and the experimental verification is carried out. The results show that the sag deformation of bridge structure can be reduced effectively. This will provide some theoretical and experimental support for large-flow support-free printing.

show abstract

Global-optimization-based model decomposition for support-free multi-DOF 3D printing

Cited by 3 publications

References 4 publications

Study on Support-Free Printing of Large-Flow Material Extrusion Process

Study on Support-Free Printing of Large-Flow Material Extrusion Process

Cylindricity and flatness optimization for mechanical parts in additive manufacturing based on tolerance adaptive slicing

Study on Support-free Printing of Large-flow Material Extrusion Process

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