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Aluminium Foam Sandwich Panels: Manufacture, Metallurgy and Applications
Author(s) -
Banhart J.,
Seeliger H.W.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800091
Subject(s) - aluminium foam sandwich , materials science , aluminium , titanium hydride , metal foam , alloy , metallurgy , powder metallurgy , adhesive , 5005 aluminium alloy , composite material , aluminium alloy , forging , titanium , core (optical fiber) , porosity , layer (electronics) , sintering
Sandwich panels consisting of a highly porous aluminium foam core and aluminium alloy face sheets are manufactured by roll‐bonding aluminium alloy sheets to a densified mixture of metal powders – usually Al‐Si or Al‐Si‐Cu alloys with 6–8% Si and 3–10% Cu – and titanium hydride, and foaming the resulting three‐layer structure by a thermal treatment. We review the various processing steps of aluminium foam sandwich (AFS) and the metallurgical processes during foaming, compare the process to alternative ways to manufacture AFS, e.g. by adhesive bonding, and give an overview of the available literature. Two ways to treat AFS after foaming are presented, namely forging and age‐hardening. Some current and potential applications are described and the market potential of AFS is assessed.