| 摘要 |
A tool for forming heads on rivets or the like. The tool includes cooperating internal and external gears and a driven shaft having an axis of rotation that is inclined relative to the axis of the driving shaft for establishing a planetary movement of the driven shaft as the drive shaft rotates. A head forming tool is carried by the driven shaft and is disposed at an angle to the axes of the driving and driven shafts. Due to this angular orientation the tool wipes across the surface of the rivet to work form this surface and upset it.
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