1998 / Solid Freeform Fabrication Proceedings
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Author John L. Lombardi (a), Gregory J. Artz (a), Dragan Popovich (a), Ranji a Vaidyanathan (a), Sajiv Boggavarapu (b), (a) Advanced Ceramics Research Inc., (b) University of Arizona
Source Solid Freeform Fabrication Proceedings, 1998, pp 511-518
Abstract Extrusion freeforming (EFF) and Fused Deposition Modelling (FDM) are promising techniques for fabricating complex shaped prototypes from a variety of engineering materials. Both techniques build prototypes by depositing and solidifying free standing layers of molten thermoplastic material upon one another until the final part results. Unfortunately many prototypes have complicated geometries (i.e. numerous overhangs or internal features) such that they are not easily fabricated by these techniques without the assistance of a fugitive material to support the freeformed layers. This paper discusses the development and characterization of water soluble thermoplastic support materials for use in EFF and FDM fabrication processes. (Auth abstract) [References: 5]
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu