作者: Robert L. Zinniel , James K. Mikulak , Carl R. Deckard
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摘要: A consumable filament for use in an extrusion-based additive manufacturing system, where the comprises a core portion of first thermoplastic material, and shell second material that is compositionally different from configured to be melted extruded form roads plurality solidified layers three-dimensional object, at least partially retain cross-sectional profiles corresponding filament.