Clad Sheet Aluminum Alloy

Aluminium brazing sheet is manufactured by roll bonding techniques to clad a core alloy ingot on one side or both sides with a low melting alsi alloy.

Clad sheet aluminum alloy.

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. Cladding is often achieved by extruding two metals through a die as well as pressing or rolling sheets together under high pressure. Anodized 5005 sheet for architectural applications and 5182. Depending on the desired final properties the core is either homogenized or not before the cladding.

An aluminum alloy is a chemical composition where other elements are added to pure aluminum in order to enhance its properties primarily to increase its strength. An extremely thin sheet of pure aluminum laminated onto each side of an aluminum alloy sheet improves the corrosion resistance with little impairment of strength. To the thickness of the core sheet typically represent between 1 and 15 of the total thickness. As an alternative one side can be clad with a non braze alloy e g.

It has a melting point of about 500 degrees celsius or 932 degrees fahrenheit. This allows a cheaper metal to be used. Cladding is the bonding together of dissimilar metals it is different from fusion welding or gluing as a method to fasten the metals together. The united states mint uses cladding to manufacture coins from different metals.

They re generally clad with a high purity alloy or a 6xxx series alloy to greatly resist corrosion. The fuselages of civil aircraft are for the most part made from 2024 alloy sheet clad on either surface with a low composition aluminum alloy a 1050 or 1070 alloy for example.