As part of the ASAP project, new adhesive systems have been developed to improve bonding processes and product performance for the transportation sector.
In the aeronautical sector, an innovative thermosetting adhesive and related bonding process (out of autoclave bonding) have been developed to attach stringers to skins. Additionally, a computational study of adhesion tests was conducted to improve the simulation capability of repaired components and bonding processes.
In the automotive sector, a bonding process for the hood system structure and panels was developed using an innovative nano-filled adhesive developed during the project. Prototypes made with the developed adhesive show a 30% increase in torsional stiffness and a 20% reduction in weight compared to the welded system.
In the naval sector, new adhesive systems with structural and fire-resistant characteristics have been developed, used to bond a swimming pool and a fire door to the ship’s structure. For the door, a 75% reduction in process times, a 20% reduction in costs and a 40% reduction in residual stresses were achieved compared to the use of mechanical joints. Furthermore, the door meets fire resistance requirements. For the swimming pool, a 70% reduction in process times and a 14% reduction in costs were achieved.
For the railway sector, an adhesive joint has been developed between a side panel and a floor inside a train using a methacrylate adhesive as a replacement for the mechanical joint. La soluzione messa punto mostra una riduzione del 38% dei tempi di processo e del 12% dei costi, rispetto alla soluzione meccanica.