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Thread: Tig tungsten diameter: relation to welding current and to metal thickness

  1. #1
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    Oct 2020
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    Tig tungsten diameter: relation to welding current and to metal thickness

    Hi,

    Does anyone have information to how the thickness (diameter) of the (dc) tig-tungsten electrode relates to:
    1. the welding current (amps)
    2. the thickness of the metal to be welded.

    The metal in my focus is plain sheet steel, not galvanised, as used in older cars (guess about 1,2 mm/1.6 mm/2.0 mm).

    Thanks,
    oldwelderman

  2. #2
    Join Date
    Sep 2015
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    West coast of Florida
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    Re: Tig tungsten diameter: relation to welding current and to metal thickness

    For any given tungsten diameter there is a max amps that can be successfully used

    For a given material thickness there is a range of amps that will successfully weld it, depending on material (part) configuration

    Name:  tungsten chart.jpg
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    Richard
    West coast of Florida

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  4. #3
    Join Date
    Nov 2014
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    Re: Tig tungsten diameter: relation to welding current and to metal thickness

    1/16 and 3/32.

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