Measuring proximity of metal to an arc welding torch

Details Measuring proximity of metal to an arc welding torch Measuring proximity of metal to an arc welding torch

B - Operations, Transporting

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K

327/61

B23K 9/02 (2006.01) B23K 9/10 (2006.01) B23K 9/127 (2006.01) G01B 7/14 (2006.01)

Patent

CA 1232333

-13- Abstract of the Disclosure Apparatus for measuring the distance between an electric welding torch and a workpiece especially useful with an aluminum workpiece. A nonconsumable electrode is mounted adjacent the consumable electrode of the welding torch with the nonconsumable electrode electrically iso- lated from the consumable electrode. A power supply connected to the consumable electrode provides an auxiliary arc and developes a consumable electrode voltage proportional to the distance between the torch and the workpiece. The consumable electrode voltage can be used to develop signals which guide the torch along a groove in the workpiece.

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