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 |
Effect of Process Parameters on Voids within Short Carbon Fiber/ABS Beads Produced via Large Area Additive Manufacturing |
Author(s) |
Neshat Sayah, Douglas E. Smith |
On-Site Speaker (Planned) |
Neshat Sayah |
Abstract Scope |
Short carbon fiber reinforced composite materials produced with Large Area Additive Manufacturing (LAAM) are attractive due to their lightweight, favorable mechanical properties, multifunctional application, and low manufacturing costs. However, the physical and mechanical properties of short carbon fiber reinforced composites 3D printed via LAAM systems remain below expectations due to the void formation. This study aims to investigate the effect of the 3D printing process parameters (including nozzle’s height above the printing surface, nozzle temperature, and extrusion rate) on void distribution and volume fraction within the microstructure of a single bead of short carbon fiber/acrylonitrile butadiene styrene (CF/ABS) composite. In this work, high-resolution-3D micro-computed tomography (µCT) is used to evaluate the microstructure of the printed bead. Preliminary results reveal that among the parameters considered here, the nozzle’s height has the most effect on void volume fraction within the printed part and void volume fraction decreases with increasing extrusion rate. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |