Measurement and analysis of pressure profile within big area additive manufacturing single screw extruder

Jake Dvorak, Christine Ajinjeru, Tyler Smith, Seokpum Kim, Christopher Hershey, John Lindahl, Vlastimil Kunc, Chad Duty

Research output: Contribution to conferencePaperpeer-review

Abstract

Pressure distributions within a single screw extruder are dependent on several factors, namely, processing parameters and flow geometry. The Big Area Additive Manufacturing (BAAM) system involves a complex flow geometry with multiple flow zones following the screw extruder. This study utilized experimental data and a one-dimensional (1-D) analytical model to compare pressures at specific areas of interest in the BAAM system. Initial results show a need for further two-dimensional (2-D) and three-dimensional (3-D) simulation and modeling of the BAAM extruder with more accurate underlying assumptions. The results of this work will allow for further study of BAAM input parameters for optimal print quality, material properties, and print head geometric design.

Original languageEnglish
Pages1242-1250
Number of pages9
StatePublished - 2019
Event30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019 - Austin, United States
Duration: Aug 12 2019Aug 14 2019

Conference

Conference30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019
Country/TerritoryUnited States
CityAustin
Period08/12/1908/14/19

Funding

Research sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Industrial Technologies Program, under contract DE-AC05-00OR22725 with UT-Battelle, LLC.

FundersFunder number
U.S. Department of Energy
Office of Energy Efficiency and Renewable EnergyDE-AC05-00OR22725

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