Title: Investigation of the Temperature Influence in the Context of Automated Fiber Placement Layup on Doubly Curved Tools

Authors: Alex Brasington, Shingo Miura, Tsuyoshi Saotome and Ramy Harik

DOI: 10.33599/nasampe/s.20.0061

Abstract: This study aims to investigate the induced effects on the temperature requirements due to the use of a complex geometry, while also gathering data for two types of materials supplied by Toray Industries. Automated Fiber Placement (AFP) has been sweeping the composites manufacturing industry due to its ability to manufacture parts with high speed, repeatability, and process quality. As a result of the advancement of the machines’ capabilities, it is being used to manufacture parts with higher degrees of complexity. The effect of the shape’s complexity on process parameters, namely temperature, is not well understood. Experiments consists of using zero- and ninety-degree constant angle layups on a complex tool to thoroughly examine the effect of curvature on the AFP process. Results show that material selection is vital to ensure high quality parts because of the difficulties with adhesion to the complex surface. Repeated layups indicate that an increase in temperature is necessary in concave areas to overcome bridging and steering defects. Heater deviation can also vary and will result in local increases and decreases in temperature. All of these effects must be accounted for when process planning, and should be monitored during AFP manufacturing to ensure high quality parts.

References: [1] R. Harik, C. Saidy, S. Williams, Z. Gurdal and B. Grimsley, "Automated Fiber Placement Defect Identity Cards: Cause, Anticipation, Existence, Significance, and Progression," in SAMPE 2018 Conference & Exhibition, Long Beach, CA, 2018. [2] A. B. Hulcher, J. M. Marchello, J. A. Hinkley, N. J. Johnston and M. A. Lamontia, "Dry Ribbon for Heated Head Automated Fiber Placement," NASA Langley Reserach Center, 2000. [3] J. Halbritter, R. Harik, A. Zuloaga and M. vanTooren, "Tool Path Generation on Doubly-Curved Free-Form Surfaces," Computer-Aided Design and Applications, vol. 14, no. 6, pp. 844-851, 2017. https://doi.org/10.1080/16864360.2017.1287760[4] K. Xia, R. Harik, J. Herrera, J. Patel and B. Grimsley, "Numerical Simulation of ADP Nip Point Temperature Prediction for Complex Geometries," in SAMPE 2018 Conference & Exhibition, Long Beach, California, 2018. [5] R. Wehbe, "Modeling of Tow Wrinkling In Automated Fiber Placement Based On Geometrical Considerations," University of South Carolina, M.S. thesis, 2017. https://scholarcommons.sc.edu/etd/4449/[6] G. Rousseau, R. Wehbe, J. Halbritter and R. Harik, "Automated Fiber Placement Path Planning: A state-of-the-art review," Computer-Aided Design & Applications, vol. 16, no. 2, pp. 172-203, 2019. https://doi.org/10.14733/cadaps.2019.172-203[7] Heraus, "humm3 - Intelligent heat for Automated Fibre Placement (AFP)," [Online]. Available: https://www.heraeus.com/media/media/hng/doc_hng/products_and_solutions_1/arc_and_flash_lamps_1/Hume_2019.pdf. [Accessed 22 November 2019]. [8] Baz Radwan, A.(2019). Experimental Analysis of the Automated Fiber Placement Manufacturing Parameters for High and Low Tack Prepreg Material. (Master's thesis). Retrieved from https://scholarcommons.sc.edu/etd/5432

Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000061

Pages: 10

Price: FREE