Combination of metal forming and injection moulding in one tool
Juliane Troschitz, Sven Bräunling, Matthias Kahl, Frank Schneider, Thomas Krampitz, Robert Kupfer, Maik Gude, Alexander Brosius
Abstract. In electric vehicles, the mechanical, media and thermal loads are significantly reduced compared to conventional vehicles, whereas at the same time the challenges in terms of electro¬magnetic compatibility, lightweight construction and acoustics are increasing. For this purpose, economically and technically competitive, recyclable electric architecture casings are to be developed. These will be realized as hybrid components in which a thin metal sheet provides the electromagnetic shielding and the polymer component transfers the mechanical loads. For the production, a hybrid process is developed in which deep drawing and injection moulding are combined in one tool. This paper presents the results of component, process and tool development, manufacturing studies, component analysis and recycling tests using a scaled generic test structure.
Keywords
Deep Drawing, Injection Moulding, Electric Architecture Casing
Published online 4/1/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Juliane Troschitz, Sven Bräunling, Matthias Kahl, Frank Schneider, Thomas Krampitz, Robert Kupfer, Maik Gude, Alexander Brosius, Combination of metal forming and injection moulding in one tool, Materials Research Proceedings, Vol. 52, pp 276-283, 2025
DOI: https://doi.org/10.21741/9781644903551-34
The article was published as article 34 of the book Sheet Metal 2025
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] A. Al-Sheyyab, Light-Weight Hybrid Structures – Process Integration and Optimized Performance, Dissertation, Friedrich-Alexander-Universität Erlangen-Nürnberg (2008).
[2] W. Koshukow, A. Liebsch, J. Wippermann, B. Kolbe, R. Kupfer, J. Troschitz, M. Buske, G. Meschut, M. Gude, Influence of Plasma Coating Pretreatment on the Adhesion of Thermoplastics to Metals, Proceedings of the Munich Symposium on Lightweight Design (2022) 85-96. https://doi.org/10.1007/978-3-031-33758-1_7
[3] S. Farahani, Polymer Injection Forming: A New Age Technology for Manufacturing Polymer-Metal Hybrids, Dissertation, Clemson University (2018).
[4] S. Farahani, V. A. Yerraa, S. Pilla, Analysis of a hybrid process for manufacturing sheet metal-polymer structures using a conceptual tool design and an analytical-numerical modelling, J. Mater. Process. Technol. 279 (2020) 116533. https://doi.org/10.1016/j.jmatprotec.2019.116533
[5] M.M. Hussain, B. Rauscher, M. Trompeter, A. E. Tekkaya, Potential of Melted Polymer as Pressure Medium in Sheet Metal Forming, Key Engineering Materials 410-411 (2009) 493-501. https://doi.org/10.4028/www.scientific.net/KEM.410-411.493
[6] G. Lucchetta, R. Baesso, Polymer Injection Forming (PIF) Of Thin‐Walled Sheet Metal Parts – Preliminary Experimental Results, AIP Conf. Proc. 907 (2007) 1046-1051. https://doi.org/10.1063/1.2729652
[7] A.E. Tekkaya, M.M. Hussain, J. Witulski, The non-hydrostatic response of polymer melts as a pressure medium in sheet metal forming, Prod. Eng. Res. Devel. 6 (2012) 385-394. https://doi.org/10.1007/s11740-012-0392-8
[8] M.M. Hussain, M. Trompeter, J. Witulski, A.E. Tekkaya, An Experimental and Numerical Investigation on Polymer Melt Injected Sheet Metal Forming, ASME. J. Manuf. Sci. Eng. 134(3) (2012) 031005. https://doi.org/10.1115/1.4006117
[9] W. Michaeli, R. Maesing, Injection Moulding and Metal Forming in One Process Step, Progress in Rubber, Plastics and Recycling Technology, 26(4) (2010) 155-166. https://doi.org/10.1177/147776061002600401
[10] S. Farahani, A. F., Arezoodar, B. M., Dariani, S. Pilla, An Analytical Model for Nonhydrostatic Sheet Metal Bulging Process by Means of Polymer Melt Pressure, J. Manuf. Sci. Eng. September 140(9) (2018) 091010. https://doi.org/10.1115/1.4040429
[11] W.-G. Drossel, C. Lies, A. Albert, R. Haase, R. Müller, P. Scholz, Process combinations for the manufacturing of metal-plastic hybrid parts. IOP Con-ference Series: Materials Science and Engineering 118 (2016) 1-10. https://doi.org/10.1088/1757-899X/118/1/012042
[12] A. Albert, W. Zorn, M. Layer, W.-G. Drossel, D. Landgrebe, L. Kroll, W. Nendel, Smart Process Combination for Aluminum/Plastic Hybrid Components, Technologies for Lightweight Structures 1(2) (2017) 44-53. https://doi.org/10.21935/tls.v1i2.91
[13] D. Landgrebe, V. Kräusel, A. Rautenstrauch, A. Albert, R. Wertheim, Energy-efficiency in a hybrid process of sheet metal forming and polymer injection moulding, Procedia CIRP 40 (2016) 109-114. https://doi.org/10.1016/j.procir.2016.01.068
[14] J. Troschitz, S. Bräunling, M. Kahl, F. Schneider, F. Folprecht, L. Schilling, M. Gude, A. Brosius, Kombination von Spritzgießen und Metallumformung in einem Prozess, 28. Fachtagung über Verarbeitung und Anwendung von Polymeren (2023) 1.11.
[15] M. Gruber, M. Beltle, S. Tenbohlen, Measurement and Simulation of the Shielding Effectiveness of Planar Material with Apertures using a ASTM D4935 TEM Cell, International Symposium on Electromagnetic Compatibility – EMC Europe, Krakow, Poland (2023) 1-5. https://doi.org/10.1109/EMCEurope57790.2023.10274278