Study of Part Geometric Features and Support Materials in Rapid Freeze Prototyping
This paper describes the investigation of part geometric features and support materials in the fabrication of ice parts by Rapid Freeze Prototyping (RFP). The achievable geometric features of the ice part including the smallest thickness of a wall and the smallest diameter of a rod are analyzed and expressed as functions of process parameters including water pressure, nozzle diameter, valve open/close frequency and duty cycle, and x-y table moving speed relative to the nozzle. The validity of the predicted results of geometric features from the analysis is verified using our experimental RFP system. In order to realize fabricating ice parts of any complex 3-D geometry, support materials are also studied. The experimental results showed a eutectic mixture of dextrose and water works well as the support material while a eutectic mixture of salt and water does not work satisfactorily.
Q. Liu et al., "Study of Part Geometric Features and Support Materials in Rapid Freeze Prototyping," CIRP Annals - Manufacturing Technology, Elsevier, Jun 2003.
The definitive version is available at http://dx.doi.org/10.1016/S0007-8506(07)60561-7
Mechanical and Aerospace Engineering
National Science Foundation (U.S.)
United States. Department of Education
Keywords and Phrases
Freezing; Prototyping; Rapid
Article - Journal
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