Smart Structures and Systems

  • 제22권2호
  • /
  • Pages.161-166
  • /
  • 2018
  • /
  • 1738-1584(pISSN)
  • /
  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Impact of UV curing process on mechanical properties and dimensional accuracies of digital light processing 3D printed objects

  • Lee, Younghun (Department of Mechanical Engineering, Konkuk University) ;
  • Lee, Sungho (SoC Platform Research Center, Korea Electronics Technology Institute) ;
  • Zhao, Xing Guan (Department of Mechanical Engineering, Konkuk University) ;
  • Lee, Dongoh (Department of Mechanical Engineering, Konkuk University) ;
  • Kim, Taemin (Department of Mechanical Engineering, Konkuk University) ;
  • Jung, Hoeryong (Department of Mechanical Engineering, Konkuk University) ;
  • Kim, Namsu (Department of Mechanical Engineering, Konkuk University)
  • 투고 : 2017.05.08
  • 심사 : 2018.03.19
  • 발행 : 2018.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the last decade, there has been an exponential increase of scientific interest in smart additive manufacturing (AM) technology. Among the different AM techniques, one of the most commonly applied processes is digital light processing (DLP). DLP uses a digital projector screen to flash an ultraviolet light which cures photopolymer resins. The resin is cured to form a solid to produce parts with precise high dimensional accuracy. During the curing process, there are several process parameters that need to be optimized. Among these, the exposure time affects the quality of the 3D printed specimen such as mechanical strength and dimensional accuracy. This study examines optimal exposure times and their impact on printed part. It was found that there is optimal exposure time for printed part to have appropriate mechanical strength and accurate dimensions. The gel fraction and TGA test results confirmed that the improvement of mechanical properties with the increasing UV exposure time was due to the increase of crosslinked network formation with UV exposure time in acrylic resins. In addition, gel fraction and thermogravimetric analysis were employed to microscopically investigate how this process parameter impacts mechanical performance.

키워드

과제정보

연구 과제 주관 기관 : National Research Foundation of Korea (NRF)

참고문헌

  1. Beaman, J.J. (2001), "Solid freeform fabrication: An historical perspective", Solid freeform fabrication symposium, 584-595.
  2. Ciraud, P.A. (1972), Process and device for the manufacture of any objects desired from any metable materials, FRG Disclosure Publications, 2263777.
  3. Giunta, G., Koutsawa, Y., Belouettar, S. and Calvi, A. (2014), "A dynamic analysis of three-dimensional functionally graded beams by hierarchical models", Smart Struct. Syst., 13(4), 637-357. https://doi.org/10.12989/sss.2014.13.4.637
  4. Gun, M., Hofmann, D., Ehm, M., Thomann, Y., Kubler, R. and Mulhaupt, R. (2008), "Acrylic nanocomposite resins for use in stereolithographyand structural light modulation based rapid prototypingand rapid manufacturing technologies", 18, 2390-2397. https://doi.org/10.1002/adfm.200800344
  5. Gowda, R.B., Udayagiri, C.S. and Narendra, D.D. (2014), "Studies on the process parameters of rapid prototyping technique (Stereolithography) for the betterment of part quality", Int. J. Manufact. Eng., 2014, 1-11.
  6. Chiu, S.H., Chen, K.T., Wicaksono, S.T. and Tsai, R. (2015), "Process parameters optimization for area-forming rapid prototyping system", Rapid Prototyping J., 21, 70-78. https://doi.org/10.1108/RPJ-12-2012-0114
  7. Ibrahim, A., Ude, N. and Ibrahim, M. (2017), "Optimization of process parameter for digital light processing (DLP) 3D printing", Proceedings of the Academics World 62nd International Conference, 11-14.
  8. Mansour, S., Gilbert, M. and Hague, R. (2007), "A study of the impact of short-term ageing on the mechanical properties of a stereolithography resin", Mater. Sci. Eng.: A, 447, 277-284. https://doi.org/10.1016/j.msea.2006.10.007
  9. Hadji, L. (2017), "Analysis of functionally graded plates using a sinusoidal shear deformation theory", Smart Struct. Syst., 19(4), 441-448. https://doi.org/10.12989/sss.2017.19.4.441
  10. Hague, R., Mansour, S. and Harris, R. (2004), "Materials analysis of stereolithography resins for use in Rapid Manufacturing", J. Mater. Sci., 39, 2457-2464. https://doi.org/10.1023/B:JMSC.0000020010.73768.4a
  11. Huang, Y.M. and Lan, H.Y. (2006), "Compensation of distortion in the bottom exposure of Stereolithography process", Int. J. Adv. Manuf Tech., 27(11-12), 1101-1112. https://doi.org/10.1007/s00170-004-2313-2
  12. Hull, C.W. (1986), "Apparatus for production of three dimensional objects by stereolithography", U.S patent, 4575330 A
  13. Muller, E., Drasar, C., Schilz, J. and Kaysser, W.A. (2003), "Functionally graded materials for sensor and energy applications", Mater. Sci. Eng. A, 362(1-2), 17-39. https://doi.org/10.1016/S0921-5093(03)00581-1
  14. Mott, E.J., Busso, M., Luo, X., Dolder, C., Wang, M.O., Fisher, J.P. and Dean, D. (2016), "Digital micromirror device (DMD)-based 3D printing of poly (propylene fumarate) scaffolds", Mater. Sci. Eng. C, 61, 301-311. https://doi.org/10.1016/j.msec.2015.11.071
  15. Jin, G.Q. and Li, W.D. (2013), "Adaptive rapid prototyping/manufacturing for functionally graded materialbased biomedical models", Int. J. Adv. Manuf Tech., 65(1-4), 97-113. https://doi.org/10.1007/s00170-012-4153-9
  16. Park, Y.J., Lim, D.H., Kim, H.J., Park, D.S. and Sung, I.K. (2009), "UV-and thermal -curing behaviors of dual curing behaviors of dual-curable adhesives based on epoxy acrylate oligomers", Int. J. Adhes Adhes., 29(7), 710-717. https://doi.org/10.1016/j.ijadhadh.2009.02.001
  17. Peterson, G.I., Schwartz, J.J., Zhang, D., Weiss, B.M., Ganter, M.A., Storti, D.W. and Boydston, A.J. (2016), "Production of materials with spatially-controlled cross-link density via vat Photopolymerization", ACS Appl. Mater. Interfaces, 8(42), 29037-29043. https://doi.org/10.1021/acsami.6b09768
  18. Pompe, W., Worch, H., Epple, M., Friess, W., Gelinsky, M., Greil, P., Hempel, U., Scharnweber, D. and Schulte, K. (2003), "Functionally graded materials for biomedical applications", Mater. Sci. Eng A, 362(1-2), 40-60. https://doi.org/10.1016/S0921-5093(03)00580-X
  19. Schultz, U., Peters, M., Bach, F.W. and Tegeder, G. (2003), "Graded coatings for thermal, wear and corrosion barriers", Mater. Sci. Eng. A, 362(1-2), 61-80 https://doi.org/10.1016/S0921-5093(03)00579-3
  20. Sun, C.; Fang, N.; Wu, D.M. and Zhang, X. (2005), "Projection micro-stereolithography using digital micro-mirror dynamic mask", Sensor. Actuat., 121, 113-120. https://doi.org/10.1016/j.sna.2004.12.011
  21. Wu, C. and Ding, S. (2015), "Coupled electro-elastic analysis of functionally graded piezoelectric material plates", Smart Struct. Syst., 16(5), 781-806. https://doi.org/10.12989/sss.2015.16.5.781
  22. Xia, C. and Fang, N. (2009), "Fully three-dimensional microfabrication with a grayscale polymeric self-sacrificial structure", J. Micromech. Microeng, 19, 115029. https://doi.org/10.1088/0960-1317/19/11/115029
  23. Xu, K. and Chen, Y. (2015), "Mask image planning for deformation control in projection-based stereolithography process", Proceedings of the ASME Computers and Information in Engineering Conference, Chicago, IL, USA, August.
  24. Zhou, C., Chen, Y., Yang, Z. and Khoshnevis, B. (2013), "Digital material fabrication using mask-image-projection-based stereolithography", Rapid. Prototyp. J., 19(3), 153-165. https://doi.org/10.1108/13552541311312148

피인용 문헌

  1. Three-point bending of beams with consideration of the shear effect vol.37, pp.6, 2018, https://doi.org/10.12989/scs.2020.37.6.733