Title: Additive Manufacturing with Carbon Fiber Reinforced LM-PAEK

Authors: Nathaniel Heathman and Mehran Tehrani

DOI: 10.33599/nasampe/s.22.0859

Abstract: This paper presents a preliminary understanding of the void formation, microstructure, crystallization kinetics, and bond formation in additively manufactured (AM) carbon fiber reinforced low-melt polyaryletherketone (LM-PAEK) composites. Coupons for this study are made from both tapes (volume fraction or Vf=55%), using laser-assisted automated fiber placement (AFP), and filaments (Vf=37%), using fused filament fabrication (FFF). The pros and cons of different feedstock materials and their corresponding AM techniques are discussed and validated through microscopy, and thermal and mechanical analysis. Testing shows that LM-PAEK manufactured via FFF and AFP have a low void content (less than 3%), high crystallinity (over 20%), and a relatively high short beam shear strength (~60 MPa). Compared with other thermoplastics, LM-PAEK composites achieve relatively high qualities for both AFP and FFF owing to LM-PAEKs relatively lower processing temperature, viscosity, and crystallinity.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000859

Pages: 12

Price: $24.00