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  1. #1
    Join Date
    Jun 2009
    Posts
    7

    Default Flat Spot Weld Nozzle Project

    Okay folks, I'm going to put up a project that I am working on and I hope to get some good feedback. As you can see from my "amazing" diagram attached below that I am attaching a zinc plated steel weld nut (.047 thickness) to 18/0 stainless steel. I will do this using the Millermatic 140 auto and the Miller Flat Spot Weld Nozzle #176237 that's going for about $18 bucks give or take. My question is what kind of wire should I use for this application? Any thoughts, comments, and snide remarks are welcome here.
    Again, thanks for the welcome to the Miller Forum.
    -Benjo
    Attached Images Attached Images

  2. #2
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,919

    Cool

    I would clean the zinc off the weld nut first. I would use just mild steel wire. But thats just me. Why don't you use a SS nut and some SS wire?...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  3. #3
    Join Date
    Jun 2009
    Posts
    7

    Default

    For some reason the company (Stafast) doesn't have ss for the weldnut i'm using. Sure would make it easier though.

  4. #4
    Join Date
    Dec 2007
    Location
    alabama
    Posts
    749

    Default

    Why use that type of nozzle?
    2, XMT's 350 cc/cv
    1, BOBCAT 250
    1, TRAILBLAZER 302
    1, MILLER DVI
    1, PASSPORT PLUS
    1, DYNASTY 200 DX
    1, MAXSTAR 150 STL
    1, HOBART CHAMP
    1, HF-251 BOX
    1, S-74d
    1, S-75DXA
    2, 12-RC SUITCASES
    2, 30 A spoolguns

  5. #5
    Join Date
    Jun 2009
    Posts
    7

    Default

    I managed to track down a ss weldnut on Friday...actually my wife tracked it down online so we're good to go on that now. Now I will be working on the application method as soon as the weldnut samples arrive. As for the nozzle use goes, I picked that so it will concentrate and limit the heat and material so that the discoloration will be minimized on the ss. I want to maintain a clean result as possible since the product will be used by consumers. I will post up some pics later when the product is completed and on the market.
    Thanks!
    -b

  6. #6
    Join Date
    Sep 2005
    Location
    Salem ,Ohio
    Posts
    3,919

    Cool

    Quote Originally Posted by fabricator View Post
    Why use that type of nozzle?
    You kind of lost me there too. I have welded zillions of weld nuts and never used one of those. Without a timer or some thingy on your welder i think you will be better off with a reg nozzle and a helmet...Bob
    Bob Wright, Grandson of Tee Nee Boat Trailer Founder
    Metal Master Fab Salem, Oh 44460
    Birthplace of the Silver & Deming Drill
    1999 MM185 w/185 Spoolgun,1986 Thunderbolt AC/DC
    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

  7. #7
    Join Date
    Jun 2009
    Posts
    7

    Default

    I'm gonna give it a try both ways (with the nozzle and without it) and compare the results. Hey metalmaster, since you have welded zillions of weldnuts and i have welded zero...what would you recommend for settings (heat and wire speed) for welding ss to weldnuts to 18/0 ss? I have the Millermatic 140 auto. I am also building a jig for the weldnut attachment so I can cruise on through and knock the project out.

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