Steady melting in material extrusion additive manufacturing
Austin R. Colon,
David Owen Kazmer,
Amy M. Peterson
et al.
Abstract:Purpose
A main cause of defects within material extrusion (MatEx) additive manufacturing is the nonisothermal condition in the hot end, which causes inconsistent extrusion and polymer welding. This paper aims to validate a custom hot end design intended to heat the thermoplastic to form a melt prior to the nozzle and to reduce variability in melt temperature. A full 3D temperature verification methodology for hot ends is also presented.
Design/methodology/approach
Infrared (IR) thermography of steady-state e… Show more
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