| 摘要 |
PROBLEM TO BE SOLVED: To restrain pressure acting on a molding metal mold from becoming excessive.SOLUTION: A forging device comprises an upper metal mold 11 and a lower metal mold 12 for molding a molding object material 1, driving means 14 and 15 for driving the upper metal mold 11 and a cylindrical storage space forming member 13 for forming a storage space 13a for storing an operation liquid, and the molding object material 1 is arranged in the storage space 13a, and when the driving means 14 and 15 drive the upper metal mold 11 to the molding object material 1 side, the upper metal mold 11 presses the molding object material 1 while compressing a working fluid of the storage space 13a, and the storage space forming member 13 has a shape of expanding the cross-sectional area of the storage space 13a as the upper metal mold 11 turns toward the pressing direction Z for pressing the molding object material 1. |
