|発明の名称||PRODUCTION INTERMEDIATE BODY OF POROUS STRUCTURE, AND METHOD FOR PRODUCING POROUS STRUCTURE|
PROBLEM TO BE SOLVED: To obtain a porous structure in which directional pores are securely formed, and having high strength.
SOLUTION: In an intermediate body production step S1, a plurality of bar-shaped members are immersed into a molten metal in an arranged state, the molten metal is filled into the circumference of each bar-shaped member, and the molten metal is cooled to produce an intermediate body. The intermediate body is made of a structure part in which a hole is formed in the part of the bar-shaped member and the bar-shaped member in the hole. In a plastic working step S2, the intermediate body filled with the bar-shaped member inside the hole is subjected to plastic working to increase the strength of the structure part. After the plastic working, in a removal step S3, the bar-shaped member is removed, and the structure part is made into a porous structure.
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