| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing system for a plurality of kinds of hollow parts in which no work in process occurs in a manufacturing step, neither storage space nor transport thereof is required, and no loss time is caused. SOLUTION: Hydraulic forming devices 11, 12 and 13 to form a hollow stock by inserting a forming die in a fixed frame for preventing any die opening are installed as exclusive machines for each kind of hollow parts. A welding machine or a working machine is directly connected to the post stages of the hydraulic forming devices 11, 12 and 13 to perform necessary working such as welding a required parts to a hollow formed body formed by the hydraulic forming devices 11, 12 and 13, and end face cutting thereof and drilling therein.
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