챔버 내부의 질소 농도에 따른 3D프린팅 출력물의 인장 강도에 관한 연구

A Study on Tensile Strength of the 3D Printing Product According to the Nitrogen Concentration of Chamber Inside

  • 이송연 (한국기술교육대학교 대학원 메카트로닉스공학과) ;
  • 허용정 (한국기술교육대학교 메카트로닉스공학부)
  • Lee, Song Yeon (Mechatronics Engineering, Graduate School of Korea University of Technology and Education) ;
  • Huh, Yong Jeong (School of Mechatronics Engineering, Korea University of Technology and Education)
  • 투고 : 2022.03.04
  • 심사 : 2022.03.25
  • 발행 : 2022.03.31

초록

Scaffolds are the structures that safely protect sensors in various parts of the body. Because of scaffolds must protect sensors from load, the tensile strength of the scaffolds must be higher than 750 kgf/cm2. Currently, the tensile strength of scaffolds made with the 3d printer is 714 kgf/cm2. We confirm that the tensile strength of the scaffolds increase using air with high nitrogen concentration. In this study, we conducted experiments to find nitrogen concentrations in which the tensile strength of the specimen is higher than 750 kgf/cm2. The nitrogen control device and the nitrogen concentration sensor were installed in the chamber type 3d printer. The nitrogen concentration inside the 3d printer was changed by 5 % from 80 % to 100 %. Specimens of ASTM D 638 standard were produced under changed nitrogen concentration. We measured the tensile strength of specimens. We compared the tensile strength of specimens produced under each nitrogen concentration. We confirmed that when air with nitrogen concentration of 90 % was used, the tensile strength of scaffolds were 762 kgf/cm2.

키워드

참고문헌

  1. Song-Yeon Lee and Yong-Jeong Huh, "A Study on Shape Warpage Defect Detection Model of Scaffold Using Deep Learning Based CNN", J. of The Korean Society of Semiconductor & Display Technology, Vol.20, pp. 99-103, 2021.
  2. Song-Yeon Lee and Yong-Jeong Huh, "A Study on Tensile Strength of the Product According to Humidity During 3D Printing Process", J. of The Korean Society of Semiconductor & Display Technology, Vol.20, pp. 177-181, 2021.
  3. Ho-Seon Choi, "Finite Element Analysis of Pressure Distribution by Ultrasound in Human Thigh Model," J.of The Information Technology, Vol. 8, pp. 43-50, 2005.
  4. Sung-Yoen Kim, Eun-Chan Kim, Hee-Chan Kim, Jae-Wook Nam, Sang-Woo Lee and Soo-Whang Baek, "A Study on the Improvement of Convenience through Reduction of Printing Time and Material Consumption of 3D Printer," J. of The Korea Institute of Electronic Communication Science, Vol. 16, pp.909-915, 2021. https://doi.org/10.13067/JKIECS.2021.16.5.909
  5. Bu-An Kim, Hyun-Young Hwang, Suk-Jun Kang and Chang-Kwon Moon, "Effect of Nitrogen Gas Pressure on the Mechanical Properties of Polymer Composite Materials", J. of The Korean Society for Power System Engineering, Vol.20, pp. 14-19, 2016. https://doi.org/10.9726/kspse.2016.20.5.014
  6. Eun-Young Oh, Jin-Woo Lee and Jong-Hwan Suhr, "3D Printable C omposite Materials : A Review and Prospective," J. of The Korean Society for Composite Materials, Vol. 31, pp. 192-201, 2018.
  7. Song-Yeon Lee and Yong-Jeong Huh, "A Study on Square Pore Shape Discrimination Model of Scaffold Using Machine Learning Based Multiple Linear Regression", J. of The Korean Society of Semiconductor & Display Technology, Vol.19, pp. 59-64, 2020.
  8. Song-Yeon Lee and Yong-Jeong Huh, "A Study on Pore Shape Discrimination Model of Scaffold Using Machine Learning Based Multiple Linear Regression", J. of The Korean Society of Semiconductor & Display Technology, Vol.19, pp. 59-64, 2020.
  9. In-Young Woo and Min-Young Lyu, "Improvement of Tensile Strength through Asymmetric Tool Path in Material Extrusion-Type 3D Printing," J. of The Polymer Society of Korea, Vol. 45, pp. 649-653, 2021. https://doi.org/10.7317/pk.2021.45.4.649
  10. IRS Global, "The Entire 3D Printing(Printer, Material) that will Lead the New Industrial Revolution," IRS Global, 1st Edition, pp.310-551, 2016.