Aluminum foam sandwich perform with high compact sandwich was prepared successfully by rolling-bonding method.Effects of rolling reduction on compactness and uniformity of the powders were analyzed

and deformed characteristics of sandwich was observed.The results indicate that compactness of sandwich powder in rolling-bonding process is greatly superior to that in hot pressing.Desirable rolling reduction is 65%

which can realize acceptable compactness and uniformity along width direction.The powders with irregular surface can contact each other with rolling pressure

which results in the occurrence of deformation and separation of particle surface bossing from the matrix.A large quantity of aluminum alloy powder particles with small size enriches in the interface zone of particles.