| 摘要 |
The invention relates to a flow-forming method, in which an axially symmetrical workpiece is fixed on a spinning mandrel, which together with the workpiece is rotated and at least one spinning roll is infed. The workpiece is formed and shaped onto an axially extending external profile of the spinning mandrel. A spacer is mounted on the spinning mandrel. A marginal area of the workpiece is shaped on an area of the spacer, the latter being plastically deformed during the shaping of the marginal area of the workpiece. The invention also relates to a flow-forming apparatus having a spinning mandrel on which can be fixed a workpiece, a drive, by means of which the spinning mandrel and workpiece can be rotated, and at least one spinning roll for forming the workpiece in a forming area. A deformable spacer is mounted on the spinning mandrel and has an overlap area and, during workpiece forming, the overlap area at least partly overlaps with the forming area of the workpiece.
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