Preparation of foamed commercially pure aluminum by air pressure infiltration process

Abstract

This work reports the technology of preparation about foamed commercially pure aluminum, which was prepared by an air pressure infiltration process. The method consists of five sequential processes: particles preprocessing, shape body system for molding, preheating, infiltration casting, machining and cleaning. The porosity of foamed commercially pure aluminum is 68%. The mean diameter of macroscopic pore is on the order of a millimeter (1.0 mm) in the foamed commercially pure aluminum with open-pore structure.