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TECHNICAL PAPERS

Liquefier Dynamics in Fused Deposition

[+] Author and Article Information
Anna Bellini

Department of Manufacturing Eng. and Management, Technical University of Denmark— DTU bldg. 425, DK—2800 Kgs. Lyngbye-mail: anna@ipl.dtu.dk

Selçuk Güçeri, Maurizio Bertoldi

Mechanical Engineering & Mechanics, Drexel University, Philadelphia, PA 19104e-mail: Guceri@drexel.edu

J. Manuf. Sci. Eng 126(2), 237-246 (Jul 08, 2004) (10 pages) doi:10.1115/1.1688377 History: Received December 01, 2003; Online July 08, 2004
Copyright © 2004 by ASME
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References

Kai, C. C., and Fai, L. K., 1997, Rapid Prototyping: Principles and Applications in Manufacturing, Wiley ed., New York, ISBN 0-471-19004-7.
Bouhal,  A., Jafari,  M. A., Han,  W., and Fang,  T., 1999, “Tracking Control and Trajectory Planning in Layered Manufacturing Applications,” IEEE Trans. Ind. Electron., 46 (2).
Langrana,  N. A., Qiu,  D., Bossett,  E., Danforth,  S. C., Safari,  M., and Safari,  A., 2000, “Virtual Simulation and Video Microscopy for Fused Deposition Methods,” Mater. Des., 22, pp. 75–82.
Yardmci, A., 1999, “Process Analysis and Development for Fused Deposition,” PhD Thesis, University of Illinois at Chicago, Chicago.
Bellini,  A., and Güçeri,  S. I., 2003, “Mechanical Characterization of Parts Fabricated Using Fused Deposition Modeling,” Rapid Prototyping Journal,9(4), pp. 252–264.
Venkataraman,  N., Rangarajan,  S., Matthewson,  M. J., Harper,  B., Safari,  A., Danforth,  S. C., Wu,  G., Langrana,  N., Guceri,  S., and Yardimci,  A., 2000, “Feedstock Material Property—Process Relationship in Fused Deposition of Ceramics (FDC),” Rapid Prototyping Journal,6(4), pp. 244–252.
Bird, B. R., Armstrong, R. C., and Hassager, O., 1987, Dynamics of Polymeric Liquid: Second Edition-Volume 1: Fluid Mechanics, Wiley-Interscience, New York, ISBN 0-471-80245-X (v.1).
Michaeli, W., 1992, Extrusion Dies for Plastics and Rubber: Design and Engineering Computation—Second Edition, Hanser ed., New York, ISBN 3-446-16190-2.
Bertoldi, M., 1998, “From Rapid Prototyping to Rapid Manufacturing: Analysis of the Fused Deposition Process,” Tesi di laurea del dipartimento di Ingegneria Aerospaziale del Politecnico di Milano, Milan.
Venkataraman, N., 2000, “The Process-Property-Performance Relationships of Feedstock Material Used for Fused Deposition of Ceramic (FDC),” Department of Ceramic and Materials Engineering, Rutgers University, New Brunswick.
DC Micromotors—Brushless DC Sevomotors—Gearheads—Tachogenerators—Encoders—Controllers, MicroMo catalog 1999–2000.
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Melsa, J. L., and Donald, S. G., 1969, Linear Control Systems, McGraw-Hill Book Company, New York, ISBN 07-041481-5.
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Figures

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Schematic of a liquefier in an FDM process
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Flow-control regions of a tool-path (a) and sample tool-path (b)
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Regional decomposition of Liquefier/Extruder
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Results for the initial model for a step amplitude=2.9851 mm3 /sec
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Results from the modified model for step amplitude=2.9851 mm3 /sec
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The analog electric circuit for dynamic analysis of liquefier
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(a) Top view of the road; (b) Side view of the road
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(a) Top view of the road; (b) Side view of the road
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Step response, step amplitude=3.5645 mm3 /sec
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Step response, step amplitude=2.9851 mm3 /sec
Grahic Jump Location
Step response, step amplitude=2.4332 mm3 /sec
Grahic Jump Location
Step response, step amplitude=3.5645 mm3 /sec
Grahic Jump Location
Step response, step amplitude=2.9851 mm3 /sec
Grahic Jump Location
Step response, step amplitude=2.4332 mm3 /sec

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