Browse > Article

Effects of Dimension of Part and Structure of Supports on the Shape Error in Stereolithography Process  

Kim, Gi-Dae (대구가톨릭대학교 기계자동차공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.15, no.3, 2006 , pp. 32-38 More about this Journal
Abstract
During stereolithography processes, the shape errors such as curl distortion and distortion of side face are generated due to the shrinkage of liquid resins. In this study, the effects of dimension of part and structure of supports on the shape error are examined. Cubic specimens which have different thicknesses are manufactured and their deformations are measured with CMM. Thicker part generates smaller curl distortion of top face and larger of bottom face. Also thicker part generates larger distortion of side face until part thickness increases to about 20mm. Larger stiffness of supports which is obtained by shorter spacing of the supports and line type contact instead of point type contact generates smaller shape error of the part.
Keywords
Stereolithography; Shape error; Curl distortion; Shrinkage; Stiffness of supports;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Jacobs, P. F., 1992, Rapid Prototyping & Manufacturing Fundamentals of StereoLithography, SME, pp. 38-48, pp. 249-284
2 Kim, G. D., Sung, J. H. and Kim, S. M., 2005, 'A Study on the Build Distortion in Stereolithography Apparatus,' KSMPE Spring Conference, pp. 138-141
3 Ahn, D. G. and Yang, D. Y., 2005, 'Principle of Rapid Prototyping and its Trends,' Journal of KSPE, Vol. 22, No. 10, pp. 7-16
4 Kim, G. D. and Oh, Y. T., 2005, 'Experimental Investigation on the Distortion Error induced by Shrinkage in Stereolithography Process,' Journal of KSMTE, Vol. 14, No. 6, pp. 61-67
5 Kim, G. D., 2005, 'A study on the Shape Accuracy in Stereolithography Process,' KSMPE Autumn Conference, pp. 184-188
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   DOI   ScienceOn