| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Extrusion-Based Additive Manufacturing of Large Composite Structures for Aerospace Applications |
| Author(s) |
Daniel Therriault, Rouhollah D. Farahani, Olivier Duchesne, Jean-François Chauvette, Juliette Pierre, Paul Gregorio |
| On-Site Speaker (Planned) |
Daniel Therriault |
| Abstract Scope |
This paper presents the development of extrusion-based additive manufacturing (AM) processes of short carbon fiber-reinforced thermoplastic composites for the creation of relatively large aerospace structures. One of the custom-made AM in-frastructures used is composed of a 6-axis robotic arm (with a maximum reach of 1.8 m enabling large printing envelope), a heated printing bed and enclosure both required for the printing high-temperature resistance thermoplastics and their composites. To increase the process productivity, we use various high-flow ex-trusion-based printheads (e.g., flowrate of ~1800 cm3/h) which allow much high-er throughputs, typically by two orders of magnitude compared to desktop-sized Fused Filament Fabrication (FFF) systems reaching flowrate of ~80 cm3/h. The AM platform has been successfully used for our various projects with aerospace industry to manufacture technological demonstrators. The two main examples are (i) non-planar multi-layer acoustic components with the largest radius of ~996 mm for efficient sound absorption of aircraft engines, and (ii) for some structural components of a composite lunar rover with a dimension up to 110 cm in 21h (instead of weeks using desktop FFF printers). Our current efforts are on im-proving the AM processes to achieve higher productivity while providing the re-quired mechanical properties. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |