Rolling-swaging tool and method for closing opening of cylindrical member using same

A rolling-swaging tool used for swaging an opening of a cylindrical member in accordance with a rolling-swaging method,

• the rolling-swaging tool, comprising:
• a support shaft connected to a driving body;
• a shaft connected to the support shaft;
• and
• substantially disk-shaped swaging portions, each of which being rotatably supported by the shaft,
• each of the substantially disk-shaped swaging portions having a first surface which performs swaging and a second surface on the opposite side in a disk thickness direction,
• the first surface having,
• an annular first swaging portion which has a minimum thickness and a maximum outer diameter,
• a disk third swaging portion which has a maximum thickness and a minimum outer diameter, and
• an annular second swaging portion which has a thickness between the minimum thickness and the maximum thickness and an outer diameter between the maximum outer diameter and the minimum outer diameter,
• a first annular inclined surface being provided at a boundary between the annular first swaging portion and the annular second swaging portion,
• a second annular inclined surface which is a curved surface, being provided at a boundary between the annular second swaging portion and the disk third swaging portion.