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Thread: Here's a good idea ....welding.

  1. #1
    Join Date
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    Default Here's a good idea ....welding.

    A magnetic earth connector.

    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

  2. #2
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    Southampton Ont. Canada
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    Default Re: Here's a good idea ....welding.

    I made one of those for a visibility flag on a low trailer
    The magnetic lines of force make for strange welding characteristics.
    R
    Sleep with one eye open.

  3. #3
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    Default Re: Here's a good idea ....welding.

    I wondered about that.
    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

  4. #4
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    Default Re: Here's a good idea ....welding.

    I might have welded with AC.
    My normal(relative term) is DC Electrode Positive.
    I recall it feeling very buzzy through the stinger.
    R
    Sleep with one eye open.

  5. #5
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    Cape Fear, NC, USA
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    Default Re: Here's a good idea ....welding.

    Arc Blow: Magnetic and Thermal

    https://en.wikipedia.org/wiki/Arc_blow

    ********************************************
    https://www.lincolnelectric.com/en-u...ow-detail.aspx

    Arc blow can cause a number of welding problems, including excessive spatter, incomplete fusion, porosity and lower quality. What is it and how can it be prevented? In this article, we will examine arc blow and discuss ways to troubleshoot and eliminate this phenomenon to create a better weld.
    Arc blow occurs in DC arc welding when the arc stream does not follow the shortest path between the electrode and the workpiece and is deflected forward or backward from the direction of travel or, less frequently, to one side.

    First, let's examine some of the terms associated with arc blow. Back blow occurs when welding toward the workpiece connection, or the end of a joint, or into a corner. Forward blow is encountered when welding away from the workpiece connection, or at the starting end of the joint. Forward blow can be especially troublesome with SMAW iron-powder electrodes, or other electrodes that produce large slag coverings, where the effect is to drag the heavy slag or the crater forward and under the arc.
    ... . . .
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    This is the first lesson ye should learn: There is so much good in the worst of us, and so much bad in the best of us, it doesn't behoove any of us to speak evil of the rest of us.
    E. Cayce

  6. #6
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    Default Re: Here's a good idea ....welding.

    OK, not such a good idea .The Wiki article is understandable.
    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

  7. #7
    Join Date
    Mar 2009
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    1,202

    Default Re: Here's a good idea ....welding.

    You could build something like that without welding the magnet. Weld a large washer to the stud, like a very flat head on a bolt. Slide the magnet onto it, add the cable as shown, and call it good. It might even work better, as the washer would be in better electrical contact with the target metal than the magnet and end of the poorly-welded stud.

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