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  • Woodworker needs some help

    Guys, looking for some advice.

    I have the need for attaching 3/16" and 1/4" diameter sst rod in a grid pattern. Looking for a fast and reliable means to do this. With my limited knowledge of welding, it seems like if I could rig up the tips of a spot welder to have good contact on these rounds, and I could get good force to these tips, I could spot weld these joints.

    Any thoughts or am I way off base with this idea?

  • #2
    Don't know what size spot welder you have but you may be under powered....Bob
    Bob Wright

    Spool Gun conversion. How To Do It. Below.
    http://www.millerwelds.com/resources...php?albumid=48

    Comment


    • #3
      Thanks Bob for the reply, but I don't have a spot welder yet. I'm just trying to get input on if a spot welder could do the job, what size I need and if two steel rods at 90 degrees have enough contact area for a spot welder to work....?

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      • #4
        Your typical spot welder, even the 220v variety, isn't going to give you the penetration necessary for your job. About the best you could hope for would be a bond similar to that a tube of JB Weld.

        I believe that if you click on the link below you'll see that the maximum capacity of a Miller 220v spot welder is 3/16". That is 3/16" TOTAL thickness for both parts added together.

        If you wish to go cheap...stick welder, easy...MIG welder and precision (but far from inexpensive)...TIG welder.

        http://www.millerwelds.com/products/spotwelders/
        Miller 251...sold the spoolgun to DiverBill.
        Miller DialArc 250
        Lincoln PrecisionTig 275
        Hypertherm 900 plasma cutter
        Bridgeport "J" head mill...tooled up
        Jet 14 X 40 lathe...ditto
        South Bend 9" lathe...yeah, got the change gears too
        Logan 7" shaper
        Ellis 3000 band saw
        Hossfeld bender w/shopbuilt hyd.
        Victor Journeyman torch and gauges
        3 Gerstner boxes of mostly Starrett tools
        Lots of dust bunnies
        Too small of a shop at 40 X 59.

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        • #5
          whillyjo,

          Did a real quick and dirty test with my Miller LMSW-52 on 1/4" diam stainless rod.

          Pieces are about 3" long.

          Tried to get good close up photos but the depth of field suffers the closer I got.

          Anyway, one spot weld like this is easy. Took about 1 second.
          Drawback is that you get burn marks on the outside surfaces.
          I was sloppy so it may be better with practice.
          Trade-off is that a cleaner looking short dwell time spot weld may not be as strong as a longer one.

          My LMSW-52 has 12" tongs which reduces the amperage at the tips but I had more than enough power.
          If I had held the switch down longer, I would have melted both rods.

          Stainless has higher electrical resistance than carbon steel so this may make a slight difference.

          I think the hardest part may to align your pieces and to hold them securely between the spot welder tips.
          May require machining a special set so they won't slip.

          Anyway, hope this helps.

          http://www.millerwelds.com/products/...__air-cooled_/
          Attached Files
          Thermal Arc GTSW400, Airco Heliwelder II, Miller Dynasty 350, Hypertherm 1000, oxy-fuel setup, metal cutting bandsaw, air compressor, drill press, etc.:

          Call me the "Clouseau" of welding !

          Comment


          • #6
            maybe you can find something that will work for you

            http://www.twpinc.com/wire-mesh/TWPCAT_5
            Ed Conley
            http://www.screamingbroccoli.net/
            MM252
            MM211
            Passport Plus w/Spool Gun
            TA185
            Miller 125c Plasma 120v
            O/A set
            SO 2020 Bender
            You can call me Bacchus

            Comment


            • #7
              Originally posted by Broccoli1 View Post
              maybe you can find something that will work for you

              http://www.twpinc.com/wire-mesh/TWPCAT_5
              I would go this route too. you can also try mc nickels also

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