About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Improved Interfacial Bonding of Multimaterial-fused Filament Fabrication Parts |
Author(s) |
Kazi Md Masum Billah, Mario Barron Gonzalez, Youssef K. Hamidi |
On-Site Speaker (Planned) |
Kazi Md Masum Billah |
Abstract Scope |
Interfacial bond strength in fused filament fabrication part highly impacts the inherent anisotropy. Depending on the orientation of the printing, the interfacial bonding can be significantly low compared to the direction of extrusion. In multiple materials fabrication, often time the welding at the materials interface is not complete, thus yielding poor interfacial bonding. Several methods were explored in the past including thermal annealing, preheating, infrared heating, localized heating, and many more. This research explores a resistance heating method to improve the bonding of multiple materials. Acrylic Styrene Acrylonitrile (ASA) and Polyethylene terephthalate glycol (PETG) materials were printed using a dual extrusion 3D printer. Resistance heating wire was inserted at the interface of these two materials to create a composite structure. Ongoing research efforts showed that the bonding strength of PETG and ASA is relatively low, however, resistance heating with embedded wires increased the polymer chain mobility and yielded improved bond strength. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |