Method for building three-dimensional objects in extrusion-based additive manufacturing systems using core-shell consumable filaments
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United States of America Patent
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Dec 30, 2014
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app pub date -
Mar 14, 2012
filing date -
Sep 17, 2010
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Abstract
A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
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