About this Abstract |
Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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Presentation Title |
Additive Manufacturing of Copolyamide-Modified Magnetic Composites for High-Temperature Bonded Magnets |
Author(s) |
Pratik U. Karkhanis, Oluwasola K. Arigbabowo, Andrew Luis Geise, Everest Sweet, Oleksandr Syzov, Lorenzo Williams, Wilhelmus J. Geerts , Jitendra S. Tate |
On-Site Speaker (Planned) |
Pratik U. Karkhanis |
Abstract Scope |
Magnetic bonded composites are a promising class of materials with the potential to replace conventional sintered magnets due to their cost-effectiveness. Additive manufacturing via Fused Filament Fabrication (FFF) enables the production of complex geometries using high-performance thermoplastics, such as Polyamide 4.6 (PA 4.6) and Polyphenylene Sulfide (PPS). However, their high crystallinity can cause challenges during FFF, including poor interlayer adhesion and inconsistent density. This study explores the development of a magnetic bonded composite incorporating a thermoplastic copolyamide hot-melt adhesive to enhance melt flow and bonding. The composite was produced using a twin-screw extruder, and the monofilament and resulting 3D-printed parts were evaluated for mechanical, magnetic, and morphological properties. Results showed that adding copolyamide improved printability and structural performance, supporting its potential in additive manufacturing of high-performance bonded composites.
This research was supported by NSF (Award DMR-2216440) and the Texas State University Graduate College Thesis Research Support Fellowship. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |