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METHOD AND DEVICE FOR PLASMA TAP HOLE WELDING

  • US 20100133241A1
  • Filed: 11/30/2009
  • Published: 06/03/2010
  • Est. Priority Date: 11/28/2008
  • Status: Active Grant
First Claim
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1. Method for plasma tap hole welding, wherein a plasma jet directed onto a workpiece to be welded is generated by means of a welding current applied to an electrode and a plasma gas, the plasma jet at least partly penetrating through the workpiece, wherein on the exit side of the plasma jet at least one electrical conductor is arranged, via which a penetration current (I2) is measured, characterized in that the penetration current (I2) is actively modified during the welding process.

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