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How does stick welding electrode work?
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Once powered up, electric current flows through the welding rod which creates the arc. During stick welding, the welding electrode is consumed. Because of the heat from the welding arc, metal is liquified and put on top of the base metal (=weld seam).
Shielding gas from the welding electrode helps to avoid oxidation of the metal in the weld pool and makes the welding process more reliable.
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