Hot double sided incremental forming of continuous fiber reinforced thermoplastics: Process analysis and system design
Doran NETTIG, Jan-Erik RATH, Thorsten SCHÜPPSTUHL, Johannes FRANK, Björn RIECKEN, Christian-André KEUN
Abstract. Interest in fiber reinforced thermoplastics (FRTP) is increasing due to their superior recyclability and processability over thermoset composites, but the need for part-specific tooling constrains their application in small-lot production. Incremental sheet forming (ISF) presents a flexible manufacturing alternative. However, existing ISF methods, predominantly developed for metals, need to be adapted to the specific process requirements of FRTP. Prior research into the ISF of FRTP has focused on single-point incremental forming (SPIF). To enable new processing strategies, this work presents the development of a robot-based hot double sided incremental forming (DSIF) setup for FRTP. A process analysis serves as the basis of the design and integration of the core system components. The setup shows great potential as a platform to explore a wide range of new ways to advance the ISF of FRTP.
Keywords
Composite, Fiber Reinforced Plastic, Incremental Sheet Forming, Robot, Hot Deformation
Published online 5/7/2025, 10 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Doran NETTIG, Jan-Erik RATH, Thorsten SCHÜPPSTUHL, Johannes FRANK, Björn RIECKEN, Christian-André KEUN, Hot double sided incremental forming of continuous fiber reinforced thermoplastics: Process analysis and system design, Materials Research Proceedings, Vol. 54, pp 1267-1276, 2025
DOI: https://doi.org/10.21741/9781644903599-138
The article was published as article 138 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] Neitzel, M., Mitschang, P. u. Breuer, U., Handbuch Verbundwerkstoffe, Werkstoffe, Verarbeitung, Anwendung, Hanser, München, 2014. https://doi.org/10.3139/9783446436978
[2] Miller, A. K., Gur, M., Peled, A., Payne, A. u. Menzel, E., Die-Less Forming of Thermoplastic- Matrix, Continuous-Fiber Composites, Journal of Composite Materials 4 (1990), 346–381. https://doi.org/10.1177/002199839002400401
[3] Al-Obaidi, A., Kräusel, V. u. Landgrebe, D., Hot single-point incremental forming assisted by induction heating, The International Journal of Advanced Manufacturing Technology 5-8 (2016), 1163–1171. https://doi.org/10.1007/s00170-015-7439-x
[4] Mirnia Kalaei, S. M., Razbin, M., Emami, M., Gholami, M. R., Salehian, M. u. Biglari, F. R., Analysis of single-point warm incremental forming for glass fiber-reinforced polyamide 6 sheets: Experimentation and simulation, Journal of Thermoplastic Composite Materials (2024), 1–26. https://doi.org/10.1177/08927057241255884
[5] Emami, R., Mirnia, M. J., Elyasi, M. u. Zolfaghari, A., An experimental investigation into single point incremental forming of glass fiber-reinforced polyamide sheet with different fiber orientations and volume fractions at elevated temperatures, Journal of Thermoplastic Composite Materials (2022), 1-25. https://doi.org/10.1177/08927057221074266
[6] Hou, C., Su, X., Peng, X., Wu, X. u. Yang, D., Thermal-Assisted Single Point Incremental Forming of Jute Fabric Reinforced Poly(lactic acid) Biocomposites, Fibers and Polymers 10 (2020), 2373–2379. https://doi.org/10.1007/s12221-020-1016-0
[7] Rath, J. E., Tool path strategies for single point incremental forming of fiber-reinforced thermoplastic sheets, Materials Research Proceedings 41 (2024), 641–650. https://doi.org/10.21741/9781644903131-71
[8] Meier, H., Smukala, V., Dewald, O. u. Zhang, J., Two Point Incremental Forming with Two Moving Forming Tools, Key Engineering Materials (2007), 599–605. https://doi.org/10.4028/www.scientific.net/KEM.344.599
[9] Lu, B., Fang, Y., Xu, D. K., Chen, J., Ai, S., Long, H., Ou, H. u. Cao, J., Investigation of material deformation mechanism in double side incremental sheet forming, International Journal of Machine Tools and Manufacture (2015), 37–48. https://doi.org/10.1016/j.ijmachtools.2015.03.007
[10] Meier, H., Buff, B., Laurischkat, R. u. Smukala, V., Increasing the part accuracy in dieless robot-based incremental sheet metal forming, CIRP Annals 1 (2009), 233–238. https://doi.org/10.1016/j.cirp.2009.03.056
[11] Möllensiep, D., Gorlas, T., Kulessa, P. u. Kuhlenkötter, B., Real-time stiffness compensation and force control of cooperating robots in robot-based double sided incremental sheet forming, Production Engineering 5 (2021), 683–699. https://doi.org/10.1007/s11740-021-01052-4