Deutsche Bahn reaches AM milestone with 100,000 parts

ApplicationsNews
May 30, 2023

May 30, 2023

Deutsche Bahn’s additively manufactured components range from handrails for the visually impaired to wheel set bearing covers (Courtesy Deutsche Bahn)
Deutsche Bahn’s additively manufactured components range from handrails for the visually impaired to wheel set bearing covers (Courtesy Deutsche Bahn)

German rail network operator Deutsche Bahn has reached the production milestone of 100,000 AM spare parts produced in full or in part by Additive Manufacturing and used across more than 500 applications. Deutsche Bahn began additively manufacturing parts in 2015, starting with simple spare parts like plastic coat hooks. Now, the company’s spectrum of AM use cases ranges from these coat to a 17 kg metal ‘box backdrop’ for a high-speed train. Deutsche Bahn has also begun introducing Additive Manufacturing as part of its training within plants.

Deutsche Bahn’s milestone part was a gear housing for shunting locomotives. This piece of machinery was cast in an additively manufactured mould and, at a volume of almost 1 m3 and weight 570 kg, the housing is thus far the company’s largest and heaviest part.

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According to Deutsche Bahn, traditional wait times for obtaining a part like the gear housing through conventional procurement methods would be an average of ten months. Therefore, the company opted for a more efficient approach by employing Additive Manufacturing technology, significantly reducing the delivery time to just two months. The rail network operator used Binder Jetting (BJT) to manufacture the gearbox mould, which was then produced by casting.

The gearbox housing is part of Deutsche Bahn’s growing digital warehouse. The database contains virtual technical drawings of spare parts. If required, these parts can then be produced quickly and easily using Additive Manufacturing. Currently, around 1,000 virtual models are stored in the digital warehouse; by 2030, Deutsche Bahn plans to have increased this to 10,000 different components.

Deutsche Bahn has shared that, as well as being a more sustainable method, this method of production saves logistics space and reduces storage costs whilst shortening delivery times and logistics chains.

Deutsche Bahn uses its own AM machines as well as a partner network for production. At the end of 2016, the railway company launched its Mobility Goes Additive network, which now consists of over 140 companies, including users, machine manufacturers, AM service providers, universities and start-ups. Various Additive Manufacturing processes are used, including Laser Beam Powder Bed Fusion (PBF-LB), Directed Energy Deposition (DED) and BJT.

www.deutschebahn.com

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Deutsche Bahn’s additively manufactured components range from handrails for the visually impaired to wheel set bearing covers (Courtesy Deutsche Bahn)
ApplicationsNews
May 30, 2023

In the latest issue of Metal AM magazine

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Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Kennametal: The story of the successful commercialisation of AM hardmetal and steel solutions
  • General Atomics Aeronautical on metal Additive Manufacturing’s place at the centre of the digital manufacturing revolution
  • Adrian Keppler on Additive Manufacturing: An insider’s assessment from the outside
  • Metal AM’s journey to industrialisation: Are we there yet? And what does the destination even look like?
  • A stronger future, layer by layer: How next-generation software will drive adoption of metal AM
  • Volkmann: Making the case for the complete automation of powder handling in AM
  • Metal AM on an industrial scale: GKN Additive draws on decades of sintering expertise to commercialise Binder Jetting
  • International Conference on Electron Beam Additive Manufacturing: Highlights from EBAM 2023

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