Lightweight Design worldwide

, Volume 11, Issue 3, pp 18–21 | Cite as

Mass production of composite leaf springs

  • Robert Ernst-Siebert
  • Sebastian Grasser
Cover Story Large-Scale Production

SGL produces glass fiber compound material-based leaf springs in large quantities for Volvo and Daimler. The specially developed component design and a fully automated production line are decisive for large-scale production. In 2019, production is to be increased to 500,000 leaf springs per year.

RTM for Series Production

The idea to develop a leaf spring for serial use in the automotive industry originated in 2009 as part of the then-young Benteler-SGL joint venture at the plant in Paderborn, Germany. The company had been formed one year prior as an initiative by Benteler Automotive and SGL Group. Benteler-SGL had already supplied customers including Audi, BMW, Lamborghini and Porsche with structural components such as car roofs, rear spoilers, B-pillars, and doors, made using Resin Transfer Molding (RTM) or hot pressing. While engineers started designing the composite leaf springs in 2009 to ready themselves for mass market production, the plant at Ried im Innkreis, Austria, was...

Copyright information

© Springer Fachmedien Wiesbaden 2018

Authors and Affiliations

  • Robert Ernst-Siebert
    • 1
  • Sebastian Grasser
    • 2
  1. 1.SGL’s two production facilitiesRied and OrtAustria
  2. 2.SGL GroupMeitingenGermany

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