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Contamination

by Shannon
(Valdosta, Ga)

When tungsten touches the molten weld pool, what pulls the contamination up onto the hot tungsten?

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There are all kinds of physics going on in an arc and weld pool. I dont pretend to know exactly how it happens, but one thing is for sure....

molten aluminum definitely seems to want to jump on a tungsten electrode.

Steel does too but not quite as much as aluminum.

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