| 摘要 |
In a friction welding machine a shear tool is provided for shearing flash off the welded workpieces at the weld zone which tool is interposable between one workpiece holder and the flash only after the workpiece holder and the flash have been relatively moved apart. The workpiece holder and the weld zone are then relatively moved towards one another to force the shear tool and the weld zone to traverse relative to one another so that the flash is completely sheared off the weld zone.
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