| 摘要 |
A method and a device are provided for pressure welding, in particular for the friction welding or magnetic arc welding of workpieces ( 2, 3 ). The actual length of one or both workpieces ( 2, 3 ) and a potential length deviation (DELTA 1 ) from a target value is measured. If a length deviation exists, the target value of at least one parameter, in particular of the friction length, friction duration, arcing time or forge force is modified. A correction factor C, by which the length deviation (DELTA 1 ) is multiplied, is determined for this modification. The pressure welding device ( 1 ) includes a corresponding measuring unit ( 12 ) for determining workpiece lengths and length deviations. The controller ( 13 ) comprises an arithmetic unit ( 14 ) for setting and modifying target values, taking into account the correction factor C.
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