About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Investigating the Directed Energy Deposition Additive Manufacturing of Thermoplastic Composites |
Author(s) |
Nathaniel Thomas Heathman, Pratik Koirala, Timothy Yap, Mehran Tehrani |
On-Site Speaker (Planned) |
Nathaniel Thomas Heathman |
Abstract Scope |
Automated fiber placement (AFP) is a leading manufacturing method for aerospace composites. AFP is an additive manufacturing (AM) technique that involves laying down unidirectional carbon fiber reinforced polymer tapes with a gantry or robotic system. AFP also uses a specialized end effector that includes a heating source and compaction roller. While AFP manufacturing of thermosetting composites has been commonplace in the industry for years, recent developments have led to the emergence of AFP of thermoplastic composites utilizing in-situ consolidation via high-power laser heating; directed energy deposition AM. In this study, several test coupons were printed using a laser-assisted AFP manufacturing cell. Effects of processing parameters on part quality and inter-laminar bonding strength are correlated with the microstructure and crystallinity in different samples. Sensory data collected during AFP along with numerical simulations are also utilized to reveal bonding and defect formation mechanisms in AFP parts. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |