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garrysisson88
garrysisson88 asked in Science & MathematicsEngineering · 5 years ago

should i weld aluminum with dc plus or dc minus?

2 Answers

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  • Philomel
    Lv 7
    5 years ago

    Yes, that is it either + or - it doesn't matter much. Dc plus will lay down electrons and DC minus will lay down holes. Which do you want.

  • Firestormer
    Lv 7
    5 years ago

    With a TIG welder, aluminium is welded with AC, not DC

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