Temperature Analyses in Fused Filament Fabrication: From Filament Entering the Hot-End to the Printed Parts.

ABSTRACT: This article analyzes temperature fields and their variations in fused filament fabrication (FFF) from the filament entering the hot-end to the printed parts, aiming at a deeper understanding of the thermal process of this additive manufacturing technology. A standard E3D print head assembly was mounted on a robot arm for printing. A stable filament feeding region was determined with an upper limit in the volume flow rate at different nozzle temperatures. Within the limit, the steady-state temperature fields inside the hot-end were studied by a computational fluid dynamics model. Simulations indicated that the temperature became less homogeneous at higher flow rates, leading to a lower extrudate temperature at the nozzle outlet. These outlet temperatures were analyzed, validated, and used

SUBMITTER: Zhang J 

PROVIDER: S-EPMC9831539 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature