Combining the ONSERT fastening element from Böllhoff and the DELO PHOTOBOND FB4151 has created a lightweight, material-friendly and flame-retardant compliant fastenings in aircraft interiors.
PHOTOBOND FB4151 is a modified UV- and light-curing acrylate that was specifically developed for use in aircraft interiors. It cures within a few seconds and achieves high strengths of around 20 MPa on various aerospace-typical plastics and metals while maintaining high flexibility with around 80% elongation at break.
The recommended operating temperature range of the adhesive extends from −40°C to +120°C. With its fire and smoke behaviour, it meets aerospace requirements according to FAR Part 25 § Section 25.853 (a)(1)(i) Amdt. 15/Amdt. 25-116 and ABD0031. In addition, the adhesive has low outgassing, is solvent-free and complies with Directive 2015/863/EU (RoHS).
The ONSERT process from Böllhoff combines bonding and mechanical fastening in one technology. Transparent plastic elements are applied directly to lightweight materials using the light-curing adhesive, without drilling or local material weakening. This protects composite materials and allows for great freedom of design. After curing, functional elements such as cable holders can be easily clipped on. With curing times of around eight seconds and the possibility of automated processing, the solution is ideally suited for series production.
“The combination of the ONSERT fastening element from Böllhoff and the DELO adhesive creates a powerful joining technology for aircraft interiors – lightweight, process-reliable and ideal for series production,” says Franz Drüke, product manager at Böllhoff.
The technology has already demonstrated its potential in initial aircraft seat development projects, for example in the fastening of cable routing in business class seats from Recaro. Further applications for cabin equipment and other lightweight structures are in the qualification phase.
For more information: https://www.boellhoff.com/gb-en/
https://www.delo-adhesives.com/
More fastenings & adhesives news can be found here: https://designsolutionsmag.co.uk/category/fasteners-adhesives/
