Hybrid Forming - A Method for Simultaneous Forming of High Strength Metal Sheet and Long Fiber Reinforced Plastic

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Fiber reinforced plastics (FRPs) are increasingly being used to reinforce the steel or aluminum automotive structure components. Currently, these multi-material applications are realized in general by a multi-stage manufacturing with considerable cost increase. To avoid this, a new hybrid forming method has been proposed and developed. It uses the half liquid FRP as a pressure media to hydro-form the sheet metals, form the reinforcement ribs of FRPs, and create the bonding between metal sheet and FRP in the same time and process step. In this work, the die sealing concepts for two test geometries could be successfully developed. The hybrid forming parameters (Temperature, pressure, speed etc.) are in a reasonable range and can be accepted by the industry. It could be approved that high strength steels with up to 800 MPa tensile strength could be hybrid formed successfully together with a LFT PA6 GF40 for a real car component. 20% weight reduction could be achieved.

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700-709

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July 2022

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[1] K. Rohde-Brandenburger, Was bringen 100 kg Gewichtsreduzierung im Verbrauch? Eine physikalische Berechnung, ATZ 07/2013, pp.584-591.

DOI: 10.1007/s35148-013-0215-z

Google Scholar

[2] T. Trautwein, S. Henn und K. Rother, Gewichtsspirale – Stellhebel in der Fahrzeugauslegung, ATZ 05/2011, pp.390-394.

DOI: 10.1365/s35148-011-0092-2

Google Scholar

[3] M. Weiss, K.C. Cloos, E. Helmers, Energy efficiency trade-offs in small to large electric vehicles, Environmental Science Europe 32, 2020, p.46, https://doi.org/10.1186/s12302-020-00307-8.

DOI: 10.1186/s12302-020-00307-8

Google Scholar

[4] M. Ahlers, Carbon Core – die neue BMW 7er Karosserie, Karosseriebautage Hamburg 2016 Proceedings, Springer Vieweg, Wiesbaden, (2016).

DOI: 10.1007/978-3-658-14144-8_9

Google Scholar

[5] Audi AG, Der neue Audi A8, https://www.audi-mediacenter.com/de/pressemappen/audi-a8- 9072.

DOI: 10.1007/978-3-663-10718-7_14

Google Scholar

[6] C. Lauter, M. Frantz, T. Tröster, Großserientaugliche Herstellung von Hybridwerkstoffen durch Prepreg-pressen, Lightweight Design, 04/2011, p.48.

DOI: 10.1365/s35725-011-0044-5

Google Scholar

[7] M. Schuck, Kombination von Materialleichtbau mit konstruktivem Leichtbau, Lightweight Design, 2/2012, pp.54-59.

DOI: 10.1365/s35725-012-0090-7

Google Scholar

[8] M. Hussain, B. Rauscher, A. Tekkaya, Wirkmedienbasierte Herstellung hybrider Metall-Kunststoff-Verbundbauteile mit Kunststoffschmelzen als Druckmedium, In: Materialwissenschaft und Werkstofftechnik, Vol. 39/9, 2008, p.585–672.

DOI: 10.1002/mawe.200800333

Google Scholar

[9] D. Landgrebe, V. Kraeusel, A. Rautenstrauch, A. Albert, R. Wertheim, Energy-efficiency in a hybrid process of sheet metal forming and polymer injection moulding, In: Procedia CIRP Vol. 40, 2016, pp.109-114. https://doi.org/10.1016/j.procir.2016.01.068.

DOI: 10.1016/j.procir.2016.01.068

Google Scholar

[10] X.F. Fang and T. Kloska, Hybrid forming of sheet metals with long Fiber-reinforced thermoplastics (LFT) by a combined deep drawing and compression molding process, International Journal of Material Forming, Vol. 13(4), 2020, pp.561-575.

DOI: 10.1007/s12289-019-01493-4

Google Scholar

[11] E. Buerkle, M. Sieverding und J. Mitzler, Spritzgiessverarbeitung von langfaser-verstärktem PP. Kunststoffe 3/2003, pp.47-50.

Google Scholar

[12] S. Gies, Interview zum Einfluss des Elektroantriebs auf die Fahrdynamik, ATZ, Ausgabe 06/2010, p.400.

Google Scholar

[13] M. Risthaus, VESTAMELT® Hylink Adhesion Promoter (Technical Information). http://adhesives-sealants.evonik.com/sites/lists/RE/DocumentsAC/FlyerVESTAMELTHylink.pdf. Accessed 30 June (2017).

Google Scholar

[14] T. Kloska and X.F. Fang, Lightweight Chassis Components – The Development of a Hybrid Automotive Control Arm from Design to Manufacture, International Journal of Automotive Technology, Vol. 22, No. 5, (2021).

DOI: 10.1007/s12239-021-0109-0

Google Scholar

[15] K.K. Saxena, K. Drotleff and J. Mukhopadhyay, Elevated temperature forming limit strain diagrams of automotive alloy Al6014-T4 and DP600: A case study, Journal Strain analysis,.

DOI: 10.1177/0309324716651028

Google Scholar