Molding of Aluminum Foams by Using Hot Powder Extrusion

Molding of Aluminum Foams by Using Hot Powder Extrusion

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In order to form aluminum foams directly from powder, a combined process of hot powder extrusion and molding is proposed.Aluminum powder mixed with a foaming agent is extruded into the mold through the die heated to a temperature higher than the melting point, and the mold is filled with the aluminum foam.When a stainless steel pipe is used for a simple mold, an Electrolux KESC8300L 60cm Integrated Dishwasher wh aluminum foam bar is obtained of which the Pentair MagicStream Laminar Parts relative density varies between 0.

2 and 0.3.The molding of aluminum foam by using three types of mold shape shows the influence of gravity and friction.

The effect of gravity is significant when a large step exists at the connection between the mold inlet and the die outlet, and friction is dominant in cases where foam is mold in a narrow space.