France, Sweden: The technology, also known as industrial origami, involves forming 3D structures from flat metal sheets by folding them along precise lines and curves using robots. This eliminates the need for cutting and welding, reduces material waste and energy consumption, lowers component weight, and promises cost savings in the long term.
The French manufacturer and the technology’s developer, Swedish engineering firm STILFOLD, have announced the successful completion of the first phase of their joint project. Collaboration began in 2023 with an analysis of Alstom’s existing production processes and identification of areas where STILFOLD could deliver the greatest benefits.
When working on the Alstom and STILFOLD project. Source: Alstom
“We have been able to confirm that Stilfold is a highly promising technology with potential across several types of train components. The results allow us to take the next step and deepen our collaboration with a view to identifying solutions that are both more environmentally friendly and cost-effective”, said Ganesh Chandramouli, Head of Innovation, Strategy and Product Portfolio at Alstom Sweden.
R&D on the application of STILFOLD technology. Source: Alstom
The companies are now advancing to the second project phase, which will assess the technology’s applicability to a broader range of train components and structural elements. Alstom anticipates that it will reduce resource consumption, cut component weights, and enhance the strength and durability of rolling stock structures.
STILFOLD is currently being used by STILRIDE, a subsidiary startup, to manufacture electric motorcycles.
