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New processes for the continuous forming of layups made of new dry-fibre-based composite materials with a view to the creation of complex preforms

Start date:2015

End date: 2017
Funding: This project was developed with the support of ACCIÓ as part of the Programa Operatiu FEDER Catalunya 2014-2020.

Objectives: The Dryforming R & D project has developed a new forming process for composite materials based on A+ Glide Forming technology. This process is intended for use with new dry-fibre composite materials with thermoplastic coatings and will generate preforms for the manufacture of complex stringers with joggles and double curvature by way of infusion.
Results: Through this project, we have achieved several remarkable technological milestones within the field of A+ Glide Forming technology:
  • Evolution of the process’s heating elements so as to permit, where required, forming temperatures inside the material of up to 400ºC
  • Development of new techniques for securing and positioning the stack, thereby enabling the generation of centred parts in a single pass
  • Evolution of the forming cart to allow pressure to be applied evenly across the part regardless of its geometry
  • Implementation of new systems to monitor, control and register the process parameters, which have enabled a deepening of our technical knowledge base
The project resulted in a demonstrator bench showcasing the full range of technologies developed. As such, this project has given us in-depth knowledge of the new dry-fibre composite materials with thermoplastic coatings, which represent one of the most promising innovations in out-of-autoclave manufacturing processes for structural aircraft elements. These advances in A+ Glide Forming technology have generated new business opportunities within the aerospace sector.
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