Lightweight Design worldwide

, Volume 11, Issue 3, pp 42–47 | Cite as

Additively manufactured hood hinges

  • Martin Hillebrecht
  • Eric Klemp
  • Patrick Mehmert
  • Sebastian Flügel
Design Hood Hinge

Edag, voestalpine and Simufact have developed an additively manufactured engine hood hinge. As well as being half the weight of conventional designs, it also incorporates a pedestrian protection function. The component can be manufactured without tools, is optimized for warp and requires only minimum post-processing.

Compact and Sports Car Segments

Stringent safety and functionality demands imposed on active hinge systems for engine hoods mean they are very complex, Figure 1 (right). In the event of an accident with a pedestrian, they extend the distance between the impacting object and any hard engine components by raising the engine hood. A pyrotechnically triggered actuator kicks in within fractions of a second and raises the hood. These hinge systems can be manufactured from sheet metal or cast or forged for large-scale production series in excess of 30,000 units p.a. [ 1]. The complex kinematics involved require many individual parts (approx. 40 components per vehicle) and high...



The authors would like to thank the entire interdisciplinary team for their close cooperation: Edag Engineering: Martin Rüde, Team Leader BE Sindelfingen; Fabian Baum, Development Engineer BE Sindelfingen; Fabian Möller, Calculation Engineer CAE Sindelfingen; Julia Schäfer-Koch, Department Head Testing Böblingen; Reinhard Bolz, Head of Measurements.

voestalpine Additive Manufacturing Center: Jens Christoffel. Simufact Engineering GmbH: Michael Wohlmuth, Dr. Hendrik Schafstall, Volker Mensing.

A special thank you also to Hirtenberger as an associate partner for providing the pyrotechnic equipment: Horst Weinkopf, Director Research and Development; Kurt Aigner, Product Pre-Development.


  1. [1]
    Hillebrecht, M.: LightHinge+: Engineering und Herstellung eines ultraleichten Motorhauben-Scharniers. Fachvortrag auf formnext Messe, VDMA Stage, Frankfurt, November 14, 2017Google Scholar
  2. [2]
    Leupold / Glosser: 3D Printing: Recht, Wirtschaft und Technik des industriellen 3D-Drucks, C. H. Beck, 2017Google Scholar
  3. [3]
    Mattheck, C.: Die Körpersprache der Bauteile: Enzyklopädie der Formfindung nach der Natur. Karlsruhe: Karlsruher Institut für Technologie, 2017Google Scholar
  4. [4]
    Mehmert, P., Escobar, E., Tateishi, M.: Optimization of the AM Process Chain by Scalable Practice Orientated Simulation. Conference NAFEMS Seminar: Virtual and Real, Wiesbaden 2017Google Scholar
  5. [5]
    Mehmert, P.; Escobar, E.; Tateishi, M.: Simulation Mehmert, P.; Escobar, E.; Tateishi, M.: Simulation of the Additive Manufacturing Process Chain for Metals. In: Kynast, M.; Eichmann, E.; Witt, G. (eds.): Rapid.Tech — International Trade Show & Conference for Additive Manufacturing: Proceedings of the 14th Rapid.Tech Conference Erfurt, 20.-22.6.2017. Munich: Carl Hanser, 2017, S. 185-201Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2018

Authors and Affiliations

  • Martin Hillebrecht
    • 1
  • Eric Klemp
    • 2
  • Patrick Mehmert
    • 3
  • Sebastian Flügel
    • 1
  1. 1.Edag Engineering GmbHFuldaGermany
  2. 2.voestalpine Additive Manufacturing Center GmbHDüsseldorfGermany
  3. 3.Simufact Engineering GmbHHamburgGermany

Personalised recommendations