한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제18권2호
  • /
  • Pages.82-90
  • /
  • 2019
  • /
  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
권호 표지
DOI QR코드

DOI QR Code

FDM 3D프린팅 윤활유에 따른 내부응력 완화에 관한 연구

Investigation of the Internal Stress Relaxation in FDM 3D Printing : vegetable lubricating oil

  • Lee, Sun Kon (Department of Mechanical Engineering, Inha University) ;
  • Kim, Yong Rae (Department of Mechanical Engineering, Inha University) ;
  • Kim, Su Hyun (Department of Mechanical Engineering, Inha University) ;
  • Kang, Sun Ho (Department of Mechanical Engineering, Inha University) ;
  • Kim, Joo Hyung (Department of Mechanical Engineering, Inha University)
  • 투고 : 2018.09.13
  • 심사 : 2019.01.04
  • 발행 : 2019.02.28
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the effects of different 3D printing conditions including oil lubrication and annealing are observed for their effects on tensile testing. In 3D printing, a press-out extrude filament is rapidly heated and cooled to create internal stress in the printed part. The 3D printing internal stress can be removed using oil-coated filament and annealing. During the oven cooling at an annealing temperature of $106^{\circ}C$, the stress of the specimens with laminated angle $0^{\circ}$ tends to increase by 12.6%, and that of the oil-coated filament printing specimens is increased by 17%. At the annealing temperature of $106^{\circ}C$, the stress of the oil-coated filament printing specimens tends to increase by 35%. In this study, we have found that the oil lubrication and annealing remove the internal stresses and increase the strength of the printed specimens. The oil lubrication and annealing reform the crystalline structures to even out the areas of high and low stress, which creates fewer fragile areas. These results are very useful for the manufacture of 3D printing products with a suitable mechanical strength for applications.

키워드

참고문헌

  1. Choi, J. W., Kim, H. C., "3D Printing Technologies A Review," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 3, pp. 1-8, 2015. https://doi.org/10.14775/ksmpe.2015.14.3.001
  2. Jang, J., Cho, D. W., “A Review of the Fabrication of Soft Structures with Three-dimensional Printing Technology,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 6, pp. 142-148, 2015. https://doi.org/10.14775/ksmpe.2015.14.6.142
  3. Lanzotti, A., Grasso, M., Staiano, G., Martorelli, M., “The impact of process parameters on mechanical properties of parts fabricated in PLA with an open-source 3-D printer,” Rapid Prototyping Journal, Vol. 21, No. 5, pp. 604-617, 2015. https://doi.org/10.1108/RPJ-09-2014-0135
  4. Hashima, K., Nishitsuji, S., Inoue, T., “Structure - properties of super-tough PLA alloy with excellent heat resistance,” Polymer, Vol. 51, No. 17, pp. 3934-3939, 2010. https://doi.org/10.1016/j.polymer.2010.06.045
  5. Kim, D. B., Lee, G. T., Lee, I. H., Cho, H. Y., “Finite Element Analysis for Fracture Criterion of PolyJet Materials,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 4, pp. 134-139, 2015. https://doi.org/10.14775/ksmpe.2015.14.4.134
  6. Feijoo, J, L., Cabedo, L., Gimenez, E., Lagaron, J, M., Saura, J, J., “Development of amorphous PLA-montmorillonite nanocomposites,” Journal of Materials Science, Vol. 40, No. 7, pp. 1785-1788, 2005. https://doi.org/10.1007/s10853-005-0694-8
  7. Guevara-Morales, A., Figueroa-Lopez, U., "Residual stresses in injection molded products," Journal of Materials Science, Vol. 49, Issue 13, pp. 4399-4415, 2014. https://doi.org/10.1007/s10853-014-8170-y
  8. Jackson Jr, W. J., Caldwell, J., R., "Antiplasticization. II. Characteristics of antiplasticizers," Journal of Applied Polymer, Vol 11, Issue 2, pp 211-226, 1967. https://doi.org/10.1002/app.1967.070110205
  9. Jacobsen, S., Fritz, H, G., "Plasticizing polylactide-the effect of different plasticizers on the mechanical properties," Polymer Engineering & Science, Vol. 39, Issue 7, pp. 1303-1310, 1999. https://doi.org/10.1002/pen.11517
  10. Akay, M., Ozden, S., "The influence of residual stresses on the mechanical and thermal properties of injection moulded ABS copolymer," Journal of Materials science, Vol. 30, Issue 13, pp 3358-3368, 1995. https://doi.org/10.1007/BF00349880
  11. Lee, S. K., Kim, Y. R., Kim, S. H., Kim, J. H., "Investigation of the Internal Stress Relaxation in FDM 3D Printing : Annealing Conditions", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 4, pp. 130-136, 2018.

피인용 문헌

  1. Convergence Education Modeling for Teaching Integration of IoT with 3D Printing Based on Manufacturing Chemical Product by Production Companies vol.12, pp.4, 2019, https://doi.org/10.7236/ijibc.2020.12.4.55