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A new process route for the manufacturing of highly formed fiber-metal-laminates with elastomer interlayers (FMEL)

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Abstract

Fiber-metal-laminates (FML) provide a high variability in part properties and are often used to satisfy multiple component demands in aerospace applications. However, conventional use of hybrid laminates in the automotive sector is unrewarding due to high manufacturing costs and strongly restricted forming degrees. This paper presents an approach, which enables the manufacturing of laminate components with low bending radii for high volume applications. To separate the carbon fiber–reinforced polymers (CFRP) from the metal sheets, an elastomer layer was used, resulting in the omission of surface treatments for adhesion and corrosion prevention. The forming degrees presented in this work exceeded current approaches. Furthermore, the influence of the forming process on the mechanical properties was analyzed, thus ensuring the profitability of the presented approach for industrial applications.

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Acknowledgments

The authors thank the Kraiburg Holding GmbH und Co. KG for providing the elastomer material in this study.

Funding

The research presented in this paper was kindly financed by the Baden-Württemberg Stiftungs project “Faser-Metall-Gummi-Hybridlaminate (FMGL) ein neuartiges, nachhaltiges Werkstoffkonzept für den Fahrzeugleichtbau”, support code MAT0012 of the research program “Rohstoff- und Materialeffzienz in der Produktion.”

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Authors and Affiliations

  1. Karlsruhe Institute of Technology, wbk Institute of Production Science, Kaiserstraße 12, 76131, Karlsruhe, Germany

    S. Roth, S. Coutandin & J. Fleischer

  2. Karlsruhe Institute of Technology, Institute for Applied Materials IAM-WK, Kaiserstraße 12, 76131, Karlsruhe, Germany

    M. Stoll & K. A. Weidenmann

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  1. S. Roth
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  2. M. Stoll
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  3. K. A. Weidenmann
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  4. S. Coutandin
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  5. J. Fleischer
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Correspondence to J. Fleischer.

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Roth, S., Stoll, M., Weidenmann, K.A. et al. A new process route for the manufacturing of highly formed fiber-metal-laminates with elastomer interlayers (FMEL). Int J Adv Manuf Technol 104, 1293–1301 (2019). https://doi.org/10.1007/s00170-019-04103-4

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