| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Strengthening FFF Parts via Annealing with Structured Dual Material Filaments and Dissolvable High-temperature Shells |
| Author(s) |
Ryan M. Dunn, Eric D. Wetzel |
| On-Site Speaker (Planned) |
Ryan M. Dunn |
| Abstract Scope |
Thermal annealing is an established method for strengthening polymer interfaces, including the weak interlaminar bonds produced by fused filament fabrication (FFF). However, highly effective annealing takes place at temperatures where the polymer will deform. By printing models with an added shell composed of a dissolvable high-temperature polymer, annealing can be achieved without deformation. Because the shell is dissolvable none of the model's geometry is replaced with temperature resistant polymer allowing the resulting part to fully benefit from annealing. Annealing can also take place during the dual-material print, or in a printer's heated build chamber post-print, reducing the time and equipment requirements for this process. Applications are discussed, as well as numerical improvements in mechanical properties such as fracture toughness and impact strength. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |