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"JongWon Lee"

Article
Development of DLP 3D Printer with Multiple Composite Materials
SoRee Hwang, JongWon Lee, SoHyang Lee, DaeGi Hong, MinSoo Park
J. Korean Soc. Precis. Eng. 2020;37(5):381-388.
Published online May 1, 2020
DOI: https://doi.org/10.7736/JKSPE.019.128
Since most commercialized DLP 3D printers fabricate 3D structures by sinking materials to Vat using a bottom-up method, it is difficult to use various materials simultaneously and there are many restrictions on printing composite materials. Especially, composite resin mixed with various functional powders in photo curable resin generally has high viscosity, causing difficult material flow in the bottom-up method when using Vat. Additionally, most of the previously presented methods for fabricating multi-material structure use individual curing for each material, so the adhesion force at the contact surface is less than 50% compared to single material. Thus, in this paper, we propose a new type of DLP 3D printer that combines Material Extrusion and the DLP system. The proposed equipment can supply high viscosity composite material resins to a specific area to cure various materials simultaneously. This method will enable fabrication of multiple composite material structures with sufficient adhesion force. The tensile test will be performed to verify suitability of the proposed method.

Citations

Citations to this article as recorded by  Crossref logo
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    Shunpei Shimizu, Masaya Inada, Tomoya Aoba, Haruka Tamagawa, Yuichiro Aoki, Masashi Sekine, Sumihisa Orita
    Journal of Manufacturing and Materials Processing.2025; 9(10): 332.     CrossRef
  • Development of a Material Mixing Extrusion Type Chocolate 3D Printer
    MinSoo Park, HyungJik Jeong, JaeHyuek Moon, JungMuk Lim
    Journal of the Korean Society for Precision Engineering.2021; 38(2): 145.     CrossRef
  • Dimensional Characteristics of 3D Printing by FDM and DLP Output Methods
    Myung-Hwi Jung, Jeong-Ri Kong, Hae-Ji Kim
    Journal of the Korean Society of Manufacturing Process Engineers.2021; 20(1): 66.     CrossRef
  • Property Analysis of Photo-Polymerization-Type 3D-Printed Structures Based on Multi-Composite Materials
    So-Ree Hwang, Min-Soo Park
    Applied Sciences.2021; 11(18): 8545.     CrossRef
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