The Consolidation of Rapid Laser Deconsolidated Composite Tapes
D.A. van Winden (TU Delft - Aerospace Engineering)
D.M.J. Peeters – Mentor (TU Delft - Aerospace Structures & Computational Mechanics)
Julie J.E. Teuwen – Graduation committee member (TU Delft - Aerospace Manufacturing Technologies)
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Abstract
Laser-assisted fiber placement (LAFP) is an automated manufacturing technique with promising potential to produce larger aerospace structural components using thermoplastic composites. However, during the rapid heating phase, deconsolidation of composite tapes can occur, resulting in negative effects on bond forming ability. This study aimed to investigate the effect of LAFP process parameters on the rapid laser heating deconsolidation forms of CF/PEEK tape samples by developing an experimental setup. Six different combinations of placement speed and consolidation pressure were tested, and the specimens were characterized for roughness, degree of effective intimate contact (DEIC), void content, and thickness. The results showed that an increase in placement speed and pressure can yield a positive effect on the resolvement of deconsolidation. The nip-point temperature was found to have a significant influence, with expected higher temperatures resulting in better re-compaction of the fiber bed and flow of the matrix material. The developed experimental setup provides a foundation for further investigation into the in-situ consolidation of LAFP for meeting aerospace standards.