While 2024 aluminum was initially designed for structural components in aircraft it s now widely used when a high strength to weight ratio is needed such as for gears shafts and fasteners.
Clad aluminum sheet.
This allows a cheaper metal to be used.
Typical uses for 2024t3 alclad aluminum sheet are aircraft skins cowls aircraft structures and also for rv repair and restoration like airstreams because of its shiny finish 2024t3 alclad 208.
Corrosion resistance and machinability are rated as fair though the addition of chromium provides good stress corrosion cracking resistance in 7075 aluminum sheet products.
Cladding is the bonding together of dissimilar metals it is different from fusion welding or gluing as a method to fasten the metals together.
Not all aircraft sheet aluminum is clad especially those alloy sheets from which small brackets gussets and fittings are made.
The united states mint uses cladding to manufacture coins from different metals.
It has a melting point of about 500 degrees celsius or 932 degrees fahrenheit.
As with alloy 2024 alloy 7075 is available in bare form or in clad alclad to offer even further protection from corrosion.
An example of clad aluminum is the surface of unpainted aircraft.
Architectural metal roofing panels metal wall panels and related products such as soffit panels highest quality fascia and coping systems.
Alclad is a trademark of alcoa but the term is also used generically.
It offers similar performance to 7075 aluminum but it s not as strong.
Alclad is a corrosion resistant aluminium sheet formed from high purity aluminium surface layers metallurgically bonded rolled onto to high strength aluminium alloy core material.
The pure aluminum is very soft and fabrication processes would severely damage or destroy the clad surfaces.
Cladding is often achieved by extruding two metals through a die as well as pressing or rolling sheets together under high pressure.
These sheets are clad in 1230 aluminum for an added layer of corrosion resistance.
Welding is generally not recommended on this aluminum sheet.