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Upper bound of feed rates in thermoplastic material extrusion additive manufacturing☆.
Luo, Cheng; Wang, Xiang; Migler, Kalman B; Seppala, Jonathan E.
Afiliación
  • Luo C; Department of Mechanical and Aerospace Engineering, University of Texas, Arlington, TX 76019, USA.
  • Wang X; Department of Mechanical and Aerospace Engineering, University of Texas, Arlington, TX 76019, USA.
  • Migler KB; Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD 20899 USA.
  • Seppala JE; Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD 20899 USA.
Addit Manuf ; 322020 Mar.
Article en En | MEDLINE | ID: mdl-38504779
ABSTRACT
In this work, we develop a simple model to determine the upper bound of feed rates that do not cause jamming in material extrusion additive manufacturing, also known as fused deposition modeling (FDM)™ or fused-filament fabrication (FFF). We first derive a relation between the tube temperature and Péclet number for the solid portion of polymer filaments. We focus on the boundary between the solid and molten polymer in the heated portion of the tube. We find the Péclet number that corresponds to the point at which this boundary makes contact with the nozzle, and identify this as the upper bound of the feed rate. We compare our predictions to experimental results. We find good agreement for tube temperatures sufficiently above the glass-transition temperature, which is the temperature region of typical additive manufacturing.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Addit Manuf Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Addit Manuf Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos