전사방식 광조형 3차원 프린팅의 조형조건에 따른 이방성 고찰

장남훈; 송성은; 박 근; Nam-Hoon Chang; Sung-Eun Song; Keun Park

Polymer(Korea), Vol.42, No.6, 1040-1045, November, 2018

DOI10.7317/pk.2018.42.6.1040 Export Citation

전사방식 광조형 3차원 프린팅의 조형조건에 따른 이방성 고찰

Investigation on Anisotropy according to Printing Conditions for Projection Type Photo-polymerization 3D Printing

장남훈, 송성은¹, 박 근^†

서울과학기술대학교 기계시스템디자인공학과
¹*㈜캐리마 개발팀 및 성균관대학교 화학공학부

Nam-Hoon Chang, Sung-Eun Song¹, and Keun Park^†

Dept. of Mechanical System Design Engineering, Seoul Nat’l Univ. of Science and Technology, Seoul 01811, Korea
¹Development Team, CARIMA Co. Ltd., Seoul 07542, Korea, and School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea

E-mail:

초록

최근 3차원 프린팅 기술에 대한 많은 관심이 고조되고 있으며, 기존의 빠른 시제품 제작 용도에서 기능성 제품의 직접 제작으로 활용 범위를 넓히고 있다. 그러나 제품의 직접 제조에 활용되기 위해서는 적층 공정에 기반한 3차원 프린팅의 단점(낮은 형상정밀도, 긴 제작시간, 적층 방향으로의 기계적 물성 저하)을 극복해야 한다. 이중 적층 방향으로의 물성 저하는 제품의 이방성을 야기시키고, 결과적으로 3차원 프린팅으로 제작된 제품의 구조적 안전성을 적절히 예상하기 어렵게 만든다. 본 연구에서는 마스크 전사방식 광조형 프린터(DLP)로 각각 수평방향과 수직 방향으로 제작한 조형물의 인장시험을 통해 기계적 물성을 고찰하고 조형조건에 따른 이방성의 차이를 비교하였다. 또한 실험결과의 분석을 통해 적절한 강도와 강성을 보장하면서도 등방성을 유지할 수 있는 조형조건을 획득하였다.

Recently, 3D printing has obtained increasing attention, and extended its application from the traditional rapid prototyping to direct fabrication of functional parts. To be used as the direct fabrication process, however, 3D printing should overcome drawbacks due to its lamination process: low dimensional accuracy, long fabrication time and degeneration of mechanical properties along the lamination direction. This degeneration along the lamination direction results in anisotropic mechanical properties, which prevents appropriate prediction of structural safety of the 3D-printed parts. This study investigated mechanical properties of 3D-printed parts using a mask-projection type (digital light processing; DLP) 3D printer by comparing tensile test results for the specimens that were printed along horizontal and vertical directions. By analyzing experimental results, appropriate printing conditions could be obtained to satisfy high mechanical strength and stiffness as well as to maintain mechanical properties within isotropic range.

Keywords:3D printing;additive manufacturing;digital light processing (DLP);photo-polymerization;anisotropy

[References]

Lipson H, Kurman M, Fabricated: The new world of 3D printing, John Wiley & Sons, 2013.
Kotlinski J, Rapid Prototyping J., 20, 499 (2014)
Turner BN, Gold SA, Rapid Prototyping J., 21, 25 (2015)
Jacobs PF, Rapid prototyping & manufacturing: fundamentals of stereolithography, Society of Manufacturing Engineers, Dearborn, 1992.
Sun C, Fang N, Wu DM, Zhang X, Sens. Actuators A-Phys., 121, 113 (2005)
Shin DH, Park YM, Park SH, J. Kor. Soc. Manuf. Proc. Engrs., 17, 47 (2018)
Ahn SH, Montero M, Odell D, Roundy S, Wright PK, Rapid Prototyping J., 8, 248 (2002)
Park SJ, Park JH, Lee KH, Lyu MY, Polym. Korea, 40(6), 846 (2016)
Park SJ, Park JH, Lyu MY, Koo MS, Rho HJ, Cho SH, Polym. Korea, 41(3), 531 (2017)
Hague R, Mansour S, Saleh N, Harris R, J. Mater. Sci., 39(7), 2457 (2004)
Quintana R, Choi JW, Puebla K, Wicker R, Int. J. Adv. Manuf. Technol., 46, 201 (2010)
Puebla K, Arcaute K, Quintana R, Wicker RB, Rapid Prototyping J., 18, 374 (2012)
Lim YE, Park JH, Park K, Int. J. Prec. Eng. Manuf. Green Technol., 5, 499 (2018)
Monzon M, Ortega Z, Hernandez A, Paz R, Ortega F, Materials, 10, 64 (2017)
Kang HW, Park JH, Cho DW, Sens. Actuators A-Phys., 178, 223 (2012)
Kim HC, Kim DY, Lee JE, Park K, Adv. Mater. Lett., 8, 1199 (2017)

[1] Lipson H, Kurman M, Fabricated: The new world of 3D printing, John Wiley & Sons, 2013.

[2] Kotlinski J, Rapid Prototyping J., 20, 499 (2014)

[3] Turner BN, Gold SA, Rapid Prototyping J., 21, 25 (2015)

[4] Jacobs PF, Rapid prototyping & manufacturing: fundamentals of stereolithography, Society of Manufacturing Engineers, Dearborn, 1992.

[5] Sun C, Fang N, Wu DM, Zhang X, Sens. Actuators A-Phys., 121, 113 (2005)

[6] Shin DH, Park YM, Park SH, J. Kor. Soc. Manuf. Proc. Engrs., 17, 47 (2018)

[7] Ahn SH, Montero M, Odell D, Roundy S, Wright PK, Rapid Prototyping J., 8, 248 (2002)

[8] Park SJ, Park JH, Lee KH, Lyu MY, Polym. Korea, 40(6), 846 (2016)

[9] Park SJ, Park JH, Lyu MY, Koo MS, Rho HJ, Cho SH, Polym. Korea, 41(3), 531 (2017)

[10] Hague R, Mansour S, Saleh N, Harris R, J. Mater. Sci., 39(7), 2457 (2004)

[11] Quintana R, Choi JW, Puebla K, Wicker R, Int. J. Adv. Manuf. Technol., 46, 201 (2010)

[12] Puebla K, Arcaute K, Quintana R, Wicker RB, Rapid Prototyping J., 18, 374 (2012)

[13] Lim YE, Park JH, Park K, Int. J. Prec. Eng. Manuf. Green Technol., 5, 499 (2018)

[14] Monzon M, Ortega Z, Hernandez A, Paz R, Ortega F, Materials, 10, 64 (2017)

[15] Kang HW, Park JH, Cho DW, Sens. Actuators A-Phys., 178, 223 (2012)

[16] Kim HC, Kim DY, Lee JE, Park K, Adv. Mater. Lett., 8, 1199 (2017)