Safety-relevant metal AM railway component obtains operational approval

December 6, 2019

Safety-relevant metal AM railway component obtains operational approval
The stainless steel 316L part is installed in the brake unit of a subway train (© Mobility goes Additive e.V., 2019)

The working group Approval of the Mobility goes Additive eV network has obtained approval for the operational use of a metal additively manufactured, safety-relevant component in rail transport. The ‘hanging bag’ part, which was produced in stainless steel 316L using Powder Bed Fusion (PBF) Additive Manufacturing, is installed in the brake unit of a subway train and is in use at Hamburger Hochbahn AG in Hamburg, Germany.

Following the joint development of an approval concept, the AM component’s suitability for use was successfully demonstrated. The required quality assurance procedures, corresponding tests and extensive documentation were then assessed by TÜV SÜD and found to be positive. 

After approval of the operation by the Hamburg Technical Inspectorate in accordance with BOStrab, commissioning took place in August 2019 by Hamburger Hochbahn AG. The tram construction and operating regulations, or BOStrab for short, regulate the construction and operation of trams and other surface and underground railways at the provincial level. 

Building on this precedent, which is innovative for the rail industry, a standard for further approvals at a cross-national level will be established in future. 

The working group Approval is headed by Siemens Mobility GmbH and supported by Mobility goes Additive members Deutsche Bahn AG, Fraunhofer IAPT and IGCV, Hamburger Hochbahn AG, Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, Photon AG, SBB Cargo AG and TÜV SÜD Product Service GmbH. 

www.mobilitygoesadditive.org 

Download the latest issue of Metal AM magazine

Our latest issue is now available to view online or download in PDF format.

As well as an extensive AM industry news section, this 152-page issue includes articles and reports on:

  • The third Munich Technology Conference: The challenge of AM adoption and the inside track on aviation
  • From atomisation to analysis: How Carpenter Additive is delivering improved material reliability, economics and quality
  • The evolving metal powder marketplace: Total solutions, vertical integrations and start-up innovations
  • Alloys by Design: The future of materials for Additive Manufacturing
  • Trumpf: Overcoming barriers to the adoption of AM in the aerospace sector
  • From silicone and rubber to steel and ceramic: The weird and wonderful world of wipers
  • Managing the industrialisation process: Notes from Euro PM’s seminar on the future of AM
  • > More information

Latest news

    E-newsletter

    Sign up to our e-newsletter, sent weekly to AM professionals and end-users around the world. We'll also let you know each time a new issue of Metal AM magazine is available.

    Discover our magazine archive…

    The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:
    • Reports on visits to leading metal AM part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news
    All past issues are available to download in PDF format, in either single page format or as double-page “spreads” for viewing on large monitors. All downloads are free of charge. Go to archive...

    Connect with us

    Visit our social media channels and sign up to our e-newsletter