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  1. #1
    Join Date
    Jul 2007
    Location
    Lancaster, Pa
    Posts
    431

    Default Super Abrasive Welding

    I bought some 5/32 super abrasive electrodes to add some hardener to one of our cast iron plow shoes to try it out before we do the whole fleet. These rods have roughly 1/4 inch of flux on them, I may be exaggerating a little but it is very thick. I never used these rods before and on the box it says to set the amps at 140 - 160 which sounds right. My question is, with that much flux, how can you tell how much of a bead you are laying or is best to run a practice bead ?
    Ken

    What else is there besides welding and riding. Besides that

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  2. #2
    Join Date
    Mar 2007
    Location
    Fraser Valley, BC
    Posts
    593

    Default

    I would just run a short practice bead to get a feel for the rod and the setting, better than testing on a good workpiece. This is what I do whenever I use a new type or size of rod.
    Dynasty 200DX, first generation
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  3. #3
    Join Date
    Jan 2008
    Location
    Jayton, Texas
    Posts
    12

    Default

    hard surface rods run similar to 7018. Make sure you have a very clean surface to weld those high dollar rods to. I usually run a pass of 7018 before I start hardsurfacing. Seems to leave less pitting.

  4. #4
    Join Date
    Jul 2007
    Location
    Lancaster, Pa
    Posts
    431

    Default

    Thanks guys, I ran a practice bead today without preheating to give it a try. Ran a bead across a junk brake caliper at 170A so I think with a little preheating, it should be pretty simple.
    Ken

    What else is there besides welding and riding. Besides that

    Miller Thunderbolt XL 300/200 AC/DC
    Hobart Handler 187
    Dewalt Chop Saw
    4" Air Grinder
    Die Grinder
    Rigid Drill Press
    Kellogg 10hp Air Compressor


    2009 FXDC

  5. #5
    Join Date
    Sep 2006
    Location
    Abilene, Texas
    Posts
    639

    Default

    Quote Originally Posted by robphillips View Post
    hard surface rods run similar to 7018. Make sure you have a very clean surface to weld those high dollar rods to. I usually run a pass of 7018 before I start hardsurfacing. Seems to leave less pitting.
    Good tip! I've never done it, but I can see how it would not only lay a good clean base for the HS rod, you also build up a little thicker layer of new metal.
    Jim

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