Twenty years ago, only 2% of an aircraft’s structure was made of composite materials. Today, these materials account for more than 50%. Metal parts are being replaced more frequently by composite materials, such as
Austrian aviation composites supplier, FACC Operations GmbH, produces lightweight composite components installed in a variety of aircraft models.
For aircraft passenger interiors, original equipment manufacturers (OEM) demand
Airbus uses FACC overhead stowage compartments in its A380 and A320 families. The company’s interior division relies on honeycomb composite panels to build these compartments. Aramid fibers, such as Nomex or Kevlar, are coated with phenolic resin to make the material light and robust. A transparent, decorative polyvinyl fluoride film is then applied to the surfaces. This decorative film makes the compartments dirt- and chemical-resistant, pleasant to the touch, and attractive.
The composite sandwich panels are lightweight, offer high torsion resistance, and are completely flat as semi-finished products. Further machining is required if bent or angled structures are needed. The design and manufacture processes for these components
Using ditch-and-pot technology, the honeycomb structure is cut from the back of the composite sandwich panel, allowing the panel to be bent or angled at that point. The resulting cavity is then filled with adhesive. Once cured, the adhesive permanently keeps the sandwich panel in the desired shape.
Processing time for manual operations
Panels used in luggage storage compartments need to be rugged, so FACC relies on large volumes of high-strength adhesives. The company prefers a
Because of the manual production process and finishing work on the component, the processing time of a 100g batch of adhesive should be at least 30 minutes, while curing time until initial strength at room temperature should not exceed 5 hours.
After intensive testing, FACC Operations opted for DELO-
This versatile adhesive fulfills national aviation authority mandates, including fire protection in aircraft interiors
As a flame-retardant adhesive, DELO-
It is extremely colorfast, keeping its white color after 1,000 hours of storage at 70°C and
FACC operations can rely on consistent colors to maintain the appearance of their aircraft components, like those used for luggage storage compartments.