Simulation Methods for Stereolithography
Stereolithography (SL) is a layered, additive manufacturing process in which an ultraviolet (UV) laser is used to selectively cure a liquid photopolymer resin in order to physically fabricate a part. Traditional SL systems use a UV laser with galvanometer-driven mirrors to scan a particular cross-section on the build surface. The limits of the resolution, both theoretical and empirical, need to be established so that accuracy and surface finish of SL-fabricated parts can be predicted.
KeywordsLaser Beam Surface Finish Beam Waist Kinetic Monte Carlo Kinetic Monte Carlo Method
The authors gratefully acknowledge financial support from Rapid Prototyping & Manufacturing Institute (RPMI) member companies, CIBA Vision, and the Georgia Research Alliance. Sect. 8.5 was based largely on the Ph.D. dissertation of Dr. Yanyan Tang (now at Intel, Corp.); the authors thank her and her advisors (Drs. Cliff Henderson and John Muzzy at Georgia Tech) for their good work.
- 1.Jacobs, P.F. (1992) Rapid Prototyping & Manufacturing: Fundamentals of Stereolithography. Dearborn, MI: Society of Manufacturing Engineers.Google Scholar
- 2.Reeves, P.E., Cobb, R.C. (1997) “Reducing the Surface Deviation of Stereolithography using In-Process Techniques,” Rapid Prototyping Journal, 3(1):20–31.Google Scholar
- 3.Lu, L., Fuh, J.Y.H., Wong, Y.S. (2001) Laser-Induced Materials and Processes for Rapid Prototyping. Boston, MA: Kluwer Academic Publishers.Google Scholar
- 7.Tang, Y. (2005). “Stereolithography Cure Process Modeling,” Chemical Engineering, Ph.D. Dissertation, Atlanta, GA: Georgia Institute of Technology.Google Scholar
- 10.O’Shea, D.C. (1985) Elements of Modern Optical Design. New York: John Wiley and Sons.Google Scholar
- 11.Narahara, H., Saito, K. (1994) “Fundamental Analysis of Single Layer Created by Three Dimensional Photofabrication.” International Conference on Rapid Prototyping. Dayton, OH: University of Dayton.Google Scholar
- 13.Sager, B. (2006) “SLA Characterization for Surface Finish Improvement: Inverse Design Methods for Process Planning,” Ph.D. Dissertation, Atlanta, GA: Georgia Institute of Technology.Google Scholar
- 15.Fouassier J. (1995) Photoinitiation, Photopolymerization, and Photocuring – Fundamentals and Applications, New York: Hanser Publishers.Google Scholar