| 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 |
Parametric Analyses of Impact of Deposition Pressure on Multi-axis Free-form Fabrication. |
| Author(s) |
Aditya R. Thakur, Jan Eine, Niklas kyriazis |
| On-Site Speaker (Planned) |
Aditya R. Thakur |
| Abstract Scope |
Additive manufacturing is being explored as one of the promising in-space manufacturing techniques. The presence of µgravity enables fabrication of support-free spare structures with ease. Sparse structures (e.g. trusses) are attractive for space applications as they can be tailored for specific load paths. Previous studies have identified positive correlation between the deposition pressure and inter-layer adhesion in 3Dprinting. However, excessive deposition pressures negatively influence the in-orbit printing accuracy. Therefore, a parametric investigation was conducted to determine optimal deposition pressure to fabricate mechanically sound trusses in orbit. Support-free arches with varying nodal deposition pressures were 3Dprinted using multi-axis robotic arms with integrated force sensors. Mechanical testing of these arches concluded that the strength improvement plateaus. It registers no significant increase in joint strength after a certain deposition pressure, characterized by the properties of the extrude. Integration of a force-feedback facilitates printing of complex, multi-layered, support-free trusses in a free-floating space environment. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |