Scratch Start Tig Polarity

Scratch start is a very basic and simple technique to start the arc in tig welding, usually found on low cost inverter welding machine those are. Let’s say your stick welder is set on a positive polarity for burning electrodes.


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Heat, gas, and filler material.

Scratch start tig polarity. If you want to run a scratch start tig setup off your existing stick welder or engine drive, simply switch the dcep (positive) setup to a dcen (negative) setup. Basic tig settings for gtaw. Heat is created by the electricity going through the welding tungsten electrode, thus igniting an arc.

Gas shielding to protect the weld from contamination provided through a compressed gas cylinder to flow around the weld zone. Scratch start causes some small bits of tungsten to break off. This will hook up to your.

Tig welding requires three main things; Let’s say your stick welder is set on a positive polarity for burning electrodes.


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