Method and apparatus for initiating welding arc using...

Details Method and apparatus for initiating welding arc using... Method and apparatus for initiating welding arc using...

B - Operations, Transporting

23

K

B23K 9/067 (2006.01)

Patent

CA 2462735

Methods and apparatus for initiating an arc (e.g., a welding arc) by placing liquid droplets containing ions in the gap between an electrode and a workpiece. This is done while a potential difference is applied between the electrode and the workpiece. The presence of the ions renders the gap between the electrode and the workpiece more conductive, thereby reducing the voltage threshold needed to initiate an arc between the electrode and the workpiece. When the voltage threshold reaches the level of the applied potential difference, the arc will be initiated.

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