Forming of Aluminum Foams by Deposition Process

Masanori Shiomi, Toshimitsu Hayakawa


In order to produce aluminum foams with designed density distribution, a deposition process of aluminum foam is examined. The precursor is made with the mixture of aluminum powder and a blowing agent, and it is heated, extruded with foaming and deposited onto the foam. In the density distribution of an aluminum foam bar made by the deposition process, high density area is found at the connection between the deposited foams. The combination of extrusion with foaming and without foaming makes clear variation of density within the deposited foam.


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