Here, Specialinsert® highlights the rise of sandwich panels when designing various construction projects thanks to their unique, lightweight characteristics. When it comes to composite fastening, the company offers a multitude of fastening solutions for sandwich panel applications.
Sandwich panels are composite materials made by bonding two thin outer skins to a lightweight core. The skins can be made of a variety of materials, such as aluminium, steel, fiberglass, or composite materials. Typically, the core is made of a lightweight material such as foam and honeycomb. The combination of the skins and core creates a strong, lightweight and rigid panel that can be used for a wide range of applications, including aerospace, automotive, construction, transport and marine industries.
Sandwich panels offer several advantages over traditional solid panels, such as weight reduction, increased stiffness, and improved insulation properties. Additionally, sandwich panels can be customised to meet specific performance requirements by varying the materials used in their construction. However, when working with sandwich panels, there are some critical points to consider:
Specialinsert® offers a wide range of high-quality fastening systems, all designed and manufactured in Italy to meet the unique needs of composite materials. The company insists that “our fastening solutions are specifically engineered to provide superior performance, reliability, and durability, ensuring that your composite material projects are secure and long-lasting”.
Included in this vast range of fasteners is Master-Plate®, a fastening system that uses adhesives to attach to any type of material. It can also be used with screws, rolling or co-moulding. The base plate can be fitted with a threaded or unthreaded attachment and can take various shapes. It is produced in both galvanised steel and AISI 316L stainless steel.
Another highlight of the Specialinsert® range is the Deform-Nut® TC/SC/1, a knurled threaded tubular rivet nut- Extra short type for sandwich panels. This is a stainless steel system consisting of a threaded tubular rivet coupled with a threaded, adjustable blind grub screw placed inside the rivet.
The Deform-Nut® is a metal threaded tubular rivet nut with a deformable expansion chamber at the top, to anchor to the material. It can be installed on parts where there is limited or no access to the inside. Also, it is easy and quick to install, versatile, aesthetic and possesses high mechanical sealing characteristics.
Specialinsert® also offers Fast-Con®, a patented stainless steel snap-on metal fastening system that allows panelling and cladding to be easily connected. A long-lasting concealed, corrosion- and flame-resistant solution. The company also offers Rubber-Fix®, the anti-vibration, snap-on fastening system that allows panelling and cladding subject to strong vibrations to be quickly connected by means of simple pressure. The system consists of two elements – the male is a steel pin fixed by screwing or gluing and the female is made of rubber and is fastened by pressure.
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