OpenFOAM simulations of filament fusion in embedded 3D printing

In embedded 3D printing, a nozzle is embedded into a support bath and extrudes filaments or droplets into the bath. However, moving the nozzle near an existing structure and writing new filaments can cause deformation and lack-of-fusion defects. Using OpenFOAM, we simulated what happens when a nozzle moves near an existing filament, and when a nozzle writes a second filament next to an existing filament. OpenFOAM is an open source computational fluid dynamics solver. This work used OpenFOAM 8 on a computing cluster. OpenFOAM input files were generated using Python 3.7. Output files were analyzed using Paraview 5.8.0 and Python 3.7. Associated code can be found on Github: https://github.com/usnistgov/openfoamEmbedded3DP, doi:10.18434/mds2-3128 This data is described in: Friedrich, L.M., & Gunther, R.T. (2023) Simulated inter-filament fusion in embedded 3D printing, submitted for publication.

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  "006:55"
]

[
  "en"
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[
  "Bioscience:Biomaterials",
  "Manufacturing:Additive manufacturing",
  "Manufacturing:Biomanufacturing",
  "Manufacturing:Process improvement",
  "Manufacturing:Process measurement and control",
  "Materials:Modeling and computational material science",
  "Materials:Polymers",
  "Mathematics and Statistics:Modeling and simulation research",
  "Mathematics and Statistics:Numerical methods and software"
]