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What's The Purpose Of Non-consumable Electrodes In Welding? Which Welding Process Uses Non-consumable Electrode

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What's the purpose of non-consumable electrodes in welding? which welding process uses non-consumable electrode

What's the purpose of non-consumable electrodes in welding?

In the case of a TIG weld, the electrode supplies energy via electric arc to the weldment , where the joint is fused from the pieces being welded.

What's the purpose of non-consumable electrodes in welding? which welding process uses non-consumable electrode

In this case, the electrode ( thoriated tungsten) is NOT considered consumable as it is fixed and provides an arc and NO filler metal to the weld. The tungsten electrode may erode and wear, requiring replacement after some time, but it is not consumed in the welding operation. Additonal filler metal may be added ( consumed) , but this is not the electrode.

To compare, MIG welds use a consumable electrode that supplies the arc as well as filler metal. The electrode material also fuses ( melts) into the weldment.

What's the purpose of non-consumable electrodes in welding?

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