한국공작기계학회논문집 (Transactions of the Korean Society of Machine Tool Engineers)

한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

광조형 공정 시 수축에 의한 변형 오차의 실험적 고찰

Experimental Investigation on the Distortion Error induced by Shrinkage in Sterolithography Process

  • 김기대 (대구가톨릭대학교 기계자동차공학부) ;
  • 오영탁 (안산공과대학 기계계열 기계시스템전공)
  • 발행 : 2005.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

During stereolithography processes, one of the main sources of dimensional error of prototype is the distortion effect owing to the shrinkage of resin. In this study, the effects of dimension of specimen, such as length, width, and thickness, on the curl distortion is examined. During the SL processes, the variation of curl distortion ewer is measured according to the number of layers, Through this study, it is verified that there is a big difference of the distortion error in both direction and magnitude between before and after the supports are removed. It Is also observed that end profile of the test part and the upper side around the border are also distorted due to the shrinkage of the resin.

키워드

참고문헌

  1. Jacobs, P. F., 1992, Rapid Prototyping & Manufacturing - Fundamentals of StereoLithography, SME, pp. 38-48, 249-284
  2. Fuh, J. Y. H., Lu, L., Tan, C. C., Chen, Z. X., and Chew, S., 1999, 'Curing characteristics of acrylic photopolymer used in stereolithography process,' Rapid Prototyping Journal, Vol. 5, No. 1, pp. 27-34 https://doi.org/10.1108/13552549910251855
  3. Lee, E. D., Sim, J. H., Ahn, K. H., and Paik, I. H., 2003, 'Improvement for Recoating Process of Stereolithography System,' Trans. of the Korean Society of Machine Tool Engineers, Vol. 12, No. 1, pp. 16-23
  4. Karalekas, D. and Rapti, D., 2002, 'Investigation of the processing dependence of SL solidification residual stresses,' Rapid Prototyping Journal, Vol. 8, No. 4, pp. 243-247 https://doi.org/10.1108/13552540210441157
  5. Liu, X. Y. and Fiang, F., 2003, 'Environmental effects on the dimensions of SL5195 resin,' Rapid Prototyping Journal, Vol. 9, No. 2, pp. 88-94 https://doi.org/10.1108/13552540310698152
  6. Narahara, H., Tanaka, F., Kishinami, T., Igarashi, S. and Saito, K., 1999, 'Reaction heat effects on initial linear shrinkage and deformation in stereolithography,' Rapid Prototyping Journal, Vol. 5, No. 3, pp. 120-128 https://doi.org/10.1108/13552549910278946
  7. Dai, K and Shaw, L., 2002, 'Distortion minimization of laser-processed components through control of laser scanning patterns,' Rapid Prototyping Journal, Vol. 8, No. 5, pp. 270-276 https://doi.org/10.1108/13552540210451732
  8. Bugeda, G., Cervera, M, Lombera, G., and Onate, E., 1995, 'Numerical analysis of stereolithography processes using the finite element method,' Rapid Prototyping Journal, Vol. 1, No. 2, pp. 13-23 https://doi.org/10.1108/13552549510086835
  9. Huang, Y. M. and Jiang, C. P., 2003, 'Curl Distortion Analysis During Photopolymerisation of Stereolithography Using Dynamic Finite Element Method,' The Int. J. of Adv. Manuf. Technol., Vol. 22, No. 2, pp. 586-595