Investigation of Layer Thickness and Surface Roughness in Rapid Freeze Prototyping

[+] Author and Article Information
Guanghua Sui

Sciperio Inc., 5202-2 North Richmond Hill Road, Stillwater, OK 74075e-mail: sui@sciperio.com

Ming C. Leu

Department of Mechanical and Aerospace Engineering and Engineering Mechanics, University of Missouri-Rolla, 1870 Miner Circle, Rolla, MO 65409-0050e-mail: mleu@umr.edu

J. Manuf. Sci. Eng 125(3), 556-563 (Jul 23, 2003) (8 pages) doi:10.1115/1.1556401 History: Received August 01, 2001; Revised July 01, 2002; Online July 23, 2003
Copyright © 2003 by ASME
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Rapid freeze prototyping experimental setup
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Ice parts built by the RFP process
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Fabrication of a vertical wall by the RFP process
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Comparison of apex radius (θ=0°) and side radius (θ=90°)
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Cross-sections showing the building of a vertical wall
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Cross-section of a vertical wall (a) and a slant wall (b)
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Illustration of cross-sections of thin ice walls
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Experimental data vs. model predictions of layer thickness at different water-ice contact angles
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Ice parts consisting of vertical and slant walls
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Layer thickness of a slant wall
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Dependence of roughness coefficient on liquid-solid contact angle
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Surface roughness of ice part with different slant angle
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Principle of rapid freeze prototyping
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Cross section of a water line
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Different profiles of water deposits calculated from numerical analysis




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