Study on Preparation of Aluminum Foam by Foaming Methodwith Blowing into Molten

Metallic foam is a new material developed in recent years.In experiment,the Al-Si aluminum foam is manufactured by blowing gas into the molten.The product parameters are:pore diameter 50-80mm,wall thickness 0040-0076mm,porosity 852%-930%.The influence of foaming temperature,flow rate of gas and volumetric percentage of SiC powder on the pore diameter and wall thickness of aluminum foam alloy are discussed in detail.