Manufacture of Plaster Core Mold for Large Oxygen Plant Components Using Fused Deposition Modeling (FDM)

Choe, Chol-Min; Sok, Sun-Hak; Ri, Wi-Song; Yang, Won-Chol; Kim, Un-Ha; Jong, Yong-Gwang

doi:10.1007/s40962-020-00549-5

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…It provides a new way of molding parts in many areas, such as mechanical engineering, vehicle engineering, aerospace, art, construction design and food engineering 1‐6 . Because of the simple structure, accessible manufacturing theory and cheap materials, fused deposition manufacturing (FDM) has become one of the most popular 3D printing technologies 7‐9 . Based on FDM, some similar technologies have been developed for different materials, such as concrete paste, liquid chocolate and meat paste 10,11 .…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6] Because of the simple structure, accessible manufacturing theory and cheap materials, fused deposition manufacturing (FDM) has become one of the most popular 3D printing technologies. [7][8][9] Based on FDM, some similar technologies have been developed for different materials, such as concrete paste, liquid chocolate and meat paste. 10,11 In the present study, the technology for liquid chocolate is mainly discussed.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of effect of the profile of screw flight on chocolate flow in 3D printing using an improved lattice Boltzmann method

Ding

et al. 2022

J Sci Food Agric

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BACKGROUND 3D printing provides a new way of molding chocolate with complex geometrical structures. The screw extruder can efficiently transport the liquid chocolate, which has been adopted to investigate the effect of the profile of the screw flight on the flow. First, the rheological behavior of the liquid chocolate is measured and the Cross equation is demonstrated as the proper rheological model. Then, based on the rheological behavior, an improved lattice Boltzmann method is creatively proposed, for which the effectiveness is validated by the classical Poiseuille flow. Third, the geometrical structure of the screw extruder is analyzed and transformed. The possible changes in the profiles of the screw flights are listed. Finally, the fluid analysis is conducted and the necessary streamlines figures, cloud charts and velocity distributions are obtained. RESULTS The large dip angle in straight cases has an obvious effect on the velocity distribution and the common flow area. The position of the convex point is the additional important factor, whereas the concave profiles are the most moderate in the proposed cases. CONCLUSION The changes in the profiles will affect the chocolate flow. The work is significant for extrusion theory in 3D printing. © 2022 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of effect of the profile of screw flight on chocolate flow in 3D printing using an improved lattice Boltzmann method

Ding

et al. 2022

J Sci Food Agric

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“…Additive manufacturing (AM) technology, as one of the most promising areas in the manufacturing of components [1][2][3], is de ned as a process of joining materials to make objects based on 3D model data, usually layer upon layer, rather than a subtractive manufacturing method [4]. In recent years, it has been used in biomedicine [5,6], the automobile industry [7,8], and aerospace applications [9,10]. In industrial use, the FDM method is more common than other methods because of the low cost of its printer equipment and the wide variety of consumables.…”

Section: Introductionmentioning

confidence: 99%

Effect of high-pressure hot airflow on interlayer adhesion strength of 3D printed parts

Xiao²,

Zhang³

et al. 2022

Int J Adv Manuf Technol

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The characteristics of FDM 3D printed parts depend largely on the process used to make them. This paper demonstrates the design of an FDM 3D printing gas-assisted molding printing head, which is used to eliminate the effect of swelling away from the mold and improve the dimensional accuracy.Meanwhile, the high-pressure hot air ow instantly heats and pressurizes the printing surface layer to enhance the interlayer adhesion strength and its mechanical properties. A stable gas lubrication layer can be formed on the inner wall of gas-assisted nozzle to smoothly deposit laments when the gas ow (Q gas ) is set to 1.75 L/min and the gas pressure (P gas ) is set to 0.4 MPa. The interlayer adhesion strength of the printed parts is enhanced by more than 50% compared with that without gas assistance, and the volumetric shrinkage rate of the optimal group is only 0.13%. The proposed printing method can signi cantly improve the performance of thermoplastic parts and provide new capabilities for biomedical printing, automotive, aerospace and functional device printing in the future.

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Section: Introductionmentioning

confidence: 99%

Effect of High-Pressure Hot Airflow On Interlayer Adhesion Strength of 3D Printed Parts

Xiao

Zhang

et al. 2021

Preprint

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The characteristics of FDM 3D printed parts depend largely on the process used to make them. This paper demonstrates the design of an FDM 3D printing gas-assisted molding printing head, which is used to eliminate the effect of swelling away from the mold and improve the dimensional accuracy. Meanwhile, the high-pressure hot airflow instantly heats and pressurizes the printing surface layer to enhance the interlayer adhesion strength and its mechanical properties. A stable gas lubrication layer can be formed on the inner wall of gas-assisted nozzle to smoothly deposit filaments when the gas flow (Qgas) is set to 1.75 L/min and the gas pressure (Pgas) is set to 0.4 MPa. The interlayer adhesion strength of the printed parts is enhanced by more than 50% compared with that without gas assistance, and the volumetric shrinkage rate of the optimal group is only 0.13%. The proposed printing method can significantly improve the performance of thermoplastic parts and provide new capabilities for biomedical printing, automotive, aerospace and functional device printing in the future.

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Manufacture of Plaster Core Mold for Large Oxygen Plant Components Using Fused Deposition Modeling (FDM)

Cited by 7 publications

References 15 publications

Investigation of effect of the profile of screw flight on chocolate flow in 3D printing using an improved lattice Boltzmann method

Investigation of effect of the profile of screw flight on chocolate flow in 3D printing using an improved lattice Boltzmann method

Effect of high-pressure hot airflow on interlayer adhesion strength of 3D printed parts

Effect of High-Pressure Hot Airflow On Interlayer Adhesion Strength of 3D Printed Parts

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