Patent ID: 7009143
Filing Date: 2006-03-07
Classification: B23K

Abstract:
1. Method of brazing workpieces with a torch, in particular a plasma or welding torch, having an electrode, in which a transmitted and/or non-transmitted working arc, supplied with power from a power source or a current source, is produced in order to generate a plasma beam from a delivered plasma gas, whereby at least one filler material is fed to the seam region of the workpieces to be joined, characterized in that the filler material ( 38 ) is connected to the or to another power source or current source ( 2 , 39 ) in such a way that one potential ( 34 , 35 , 40 , 41 ) of the power source or current source ( 2 , 39 ) is applied to the filler material ( 38 ) and the other potential ( 34 , 35 , 40 , 41 ) to the workpieces ( 16 ), and the power source or current source ( 2 , 39 ), in particular the power delivered by the power source or current source ( 2 , 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 struck.