About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
A Review of Extrudate Shaping For
Large-Scale Additive Manufacturing |
Author(s) |
Phillip Chesser, Alex Roschli, Randall Lind, Celeste Atkins, Jesse Heineman, Brian Post |
On-Site Speaker (Planned) |
Phillip Chesser |
Abstract Scope |
In recent years numerous extrusion-based large-scale additive manufacturing systems have been developed. With all extrusion-based systems the extruded bead of material has imperfections, anomalies and deviations from the ideal. With conventional small-scale systems, the size of these errors is small enough to be neglected in many cases. However, with large-scale systems which extrude large beads of material, these anomalies can be significant. Hence, various researchers have used different methods of post-shaping the bead of material after it exits the extruder through the use of various devices such as reciprocating platens, rollers, shapers and even irregularly shaped nozzles. A review of these methods is presented herein with emphasis being placed upon technologies developed at the Manufacturing Demonstration Facility (MDF) at Oak Ridge National Laboratory (ORNL). |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |