Rapid Freeze Prototyping is a solid freeform fabrication process that uses water as the main build material in a cold environment to create three-dimensional parts. A eutectic sugar-water solution (C6H12O6 – H2O) has been used as a sacrificial material in order to create complex 3D parts with features such as overhangs. A study of the interaction of the build and support materials is presented in this paper. The temperature of both materials during deposition and subsequent cooling is modeled using a semi-empirical model and a theoretical model. A concentration model is used to predict the concentration in the fabricated parts around the interface of the two materials with predicted temperatures as input. Experiments are conducted to validate both the temperature and concentration models.
F. D. Bryant and M. Leu, "Modeling and Validation of Temperature and Concentration for Rapid Freeze Prototyping," Proceedings of the 18th Annual Solid Freeform Fabrication Symposium (2007, Austin, TX), pp. 234-245, University of Texas at Austin, Aug 2007.
18th Annual Solid Freeform Fabrication Symposium (2007: Aug. 6-8, Austin, TX)
Mechanical and Aerospace Engineering
Article - Conference proceedings
08 Aug 2007