| 摘要 |
The present invention provides a rolling device and rolling method that allow for simultaneous rolling of three or more cylindrical members to obtain annular members while reducing the possibility of a mandrel breaking. To this end, the rolling device (1) has a forming roll (10), a support roll (20), and a mandrel (30), and multiple workpieces (4) are mounted on the mandrel (30) in the radial direction of the mandrel (30) and staggered with respect to each other. In addition, the rolling method uses the rolling device and includes a mounting process for mounting the workpieces (4) on the mandrel (30) and a rolling process. |
