| 摘要 |
The invention describes a method of brazing workpieces ( 16 ) with a torch ( 10 ), in particular a plasma or welding torch, having an electrode ( 28 ), in which a transmitted and/or non-transmitted working arc supplied with power from a power source or a current source ( 2 ) is produced in order to generate a plasma beam from a delivered plasma gas, whereby at least one filler material ( 38 ) is fed to the seam region of the workpieces ( 16 ) to be joined. The filler material ( 38 ) is connected to the or to another power source or current source ( 39 ). To this end, one potential ( 40 ) of the power source or current source ( 39 ) is applied to the filler material ( 38 ) and the other potential ( 35, 41 ) to the workpieces ( 16 ). The power source or current source ( 39 ) is regulated in such a way that when the filler material ( 38 ) is lifted off the workpiece ( 16 ) an arc is prevented from being generated.
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