METHOD OF MANUFACTURING PRECURSOR FOR FOAM METAL AND METHOD OF MANUFACTURING FOAM METAL, AND PRECURSOR FOR FOAM METAL AND FOAM METAL MANUFACTURED BY THE METHODS

摘要

Provided are a method of manufacturing a precursor for foam metal, a method of manufacturing a foam metal, a precursor for foam metal obtained by the manufacturing method, and a foam metal obtained by the manufacturing method.  The method of manufacturing a precursor for foam metal includes a step of superimposing base materials (1 and 2) one on another with a foaming agent (3) interposed therebetween and a step of performing a friction stir processing on one surface of the superimposed base materials (1 and 2) to thereby weld the base materials (1 and 2) together and simultaneously therewith, dispersing the foaming agent (3) in the base materials (1 and 2).  In the method of manufacturing a foam metal, the precursor obtained by the above manufacturing method is foamed by overheating.