| 摘要 |
A hydroforming apparatus is provided to increase productivity by forming a buffer part between a nozzle part and an apparatus body part, thereby preventing flaws such as pleats and abnormal deformation generated when the nozzle part pushes the tube during joining of the nozzle part and a tube and preventing defective forming of a hydroforming product. A hydroforming apparatus(100) comprises a nozzle part(110), a buffer part(130), and an apparatus body part(180). The nozzle part is joined with an end portion of a tube housed in a mold to perform hydroforming. The buffer part is equipped at the nozzle part. The buffer part absorbs an impact applied to the tube. The apparatus body part is connected to the buffer part. The hydroforming apparatus further comprises a nozzle fixing part(150) checking retrocession of the nozzle part such that the nozzle part does not retrocede during hydroforming of the tube.
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