Simulation of a Downsized FDM Nozzle

Thomas Hofstätter, Rodrigo Pimentel, David B. Pedersen, Michael Mischkot, Hans N. Hansen

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Abstract

This document discusses the simulat-ion of a downsized nozzle for fused deposition modelling (FDM), namely the E3D HotEnd Extruder with manufactured diameters of 200-400 μm in the nozzle tip. The nozzle has been simulated in terms of heat transfer and fluid flow giving an insight into the physical behavior of the polymer inside the nozzle. The extruder contains a nozzle, a heater block, a heatbreak and a heatsink additionally cooled by a fan. The diameter is located in the sub-mm re-gion allowing to reduce the size and surface roughness of the product. The simulation results were experimentally validated. This kind of simulations is facing multiple problems connected to the description of the material properties with temperature and pressure dependency.
Original languageEnglish
Title of host publicationProceedings. COMSOL conference 2015
Number of pages5
Publication date2015
Publication statusPublished - 2015
EventCOMSOL Conference 2015 - Grenoble, Switzerland
Duration: 14 Oct 201516 Oct 2015

Conference

ConferenceCOMSOL Conference 2015
CountrySwitzerland
CityGrenoble
Period14/10/201516/10/2015

Cite this

Hofstätter, T., Pimentel, R., Pedersen, D. B., Mischkot, M., & Hansen, H. N. (2015). Simulation of a Downsized FDM Nozzle. In Proceedings. COMSOL conference 2015