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Welding sheet metal with an ARC welder?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BIGJ, Oct 3, 2001.

  1. BIGJ

    BIGJ 1/2 ton status Author

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    Can you weld sheet metal with an arc welder? I'm not talking about 1/4" plate or anything like that, but more like fenders and rockers. I don't have any experience with the really thin stuff, and before I go and burn some holes in my blazer I thought I'd ask. If it's possible, what rod and setting do I use? I have a Lincoln 220 AC arc welder at home but no mig yet. If it won't work then I guess I'll have to bum a mig from someome. Or maybe pick up a christmas present to myself a few months early [​IMG] .

    Thanks,
    BIGJ
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Welding body panel's with Stick is extremely tricky and frustrating. Buy or borrow a MIG.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  3. BIGJ

    BIGJ 1/2 ton status Author

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    Thanks. That's what I figured, just wanted to be sure.

    BIGJ
     
  4. Cmoe

    Cmoe 1/2 ton status

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    It can be done but it's messy and unless you are good with a rod you'll have to repair alot more than you planned on repairing.....

    Mig can also be messy and make more work than you wanted if you not carefull.

    Eather way....go get a scrap piece of metal from a bone yard and practic if your not use to welding on body parts.....

    C'moe

    Kill Roy was here!
     
  5. BorregoK5

    BorregoK5 1/2 ton status

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    What about welding sheet aluminum with oxy/acetylene. Generally, I know this doesn't work well, its a heliarc job, but I've heard success stories in the past. I'm looking at spot welding some aluminum diamond plate. Do you know of a technique that might work?

    What, Me Worry?
    <a target="_blank" href=http://www.echobit.com:81/k5/> The 'BEFORE' pictures</a>
     
  6. Pugsley

    Pugsley 1/2 ton status

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    I've welded aluminum with the torch - it's a PITA -to do a good job you have to use heat sink compound, and flux coated rod.

    Of the 5 toughest dogs in the neighborhood, my cat's ranked #3
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  7. BorregoK5

    BorregoK5 1/2 ton status

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    Excellent, I knew I'd have to run the heat low on the torch but didn't think about the heat sink compound. Thank you!

    What, Me Worry?
    <a target="_blank" href=http://www.echobit.com:81/k5/> The 'BEFORE' pictures</a>
     
  8. You can weld sheet metal with welding rod (6011 or 6013 3/32"), but it is not for amatuers. The sheet metal will distort also. If the sheet metal has any rust whatsoever on, no matter what welding process you use, the second you strike an arc, you will blow a hole through the metal. If you know someone who is a good welder (i.e. someone that earns their living by it), they may be able to weld your sheet metal with stick. If not, borrow a MIG.

    God has a hard on for Marines, because we keep Heaven chock full of fresh souls!
     
  9. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Get some 6d nails and a hammer and use them to joint the metal. You will be more sucesfull [​IMG] Don't bother to buy those real expensive thin rods. still doesn't work and horrible spatter.

    I don't need no damn shop manual, I got a pornographic memory.
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    Grim-Reaper
     
  10. ftn96

    ftn96 1/2 ton status

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    Or better yet, get some JB weld. [​IMG]

    "you know... the guy with the BAD A$$ spring perches!!![​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  11. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    (i.e. someone that earns their living by it), they may be able to weld your sheet metal with stick

    I weld for a living...the best thing for the job is a TIG welder, second would be the MIG, third would be the JB weld, fourth would be Grimmy's nails, and if absolutely none of those were available to you I still would not recomend welding that paper thin steel with a stick welder.[​IMG]
    They do make small diameter rods specifically for welding body panels...but they don't work worth a damn.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
     
  12. hammer

    hammer 1/2 ton status

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    I also weld for a living and my choice's would be tig(heli-arc)then resistance weld , then mig,then jb weld
     
  13. 84_Chevy_K10

    84_Chevy_K10 Banned

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    I am no expert welder but I'd stay away from arc too. I tried using it for exhaust pipe once just to temporarily tack it there to quiet it down until I could get new pipes. It was a waste of time.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  14. 78Jimmyish

    78Jimmyish 1/2 ton status

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    Yes..and no. It can be done - but definately not for the faint of heart... If you know a friend with a TIG or MIG, it'd be a WAY better idea to pay him for his time and materials. Although if you've got a couple of junk body panels, practice a litlte bit, you may find you have a knack for it. More than likely not though, that kind of thing seem to be all about practice - my old boss used to do it all the time and it'd look like it was welded with a TIG.
     
  15. Pugsley

    Pugsley 1/2 ton status

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    You can get a stitch welding attachment for your AC machine for less than $100 from Eastwood - they work pretty well, but take quite a bit of practice to do a good job with.

    Of the 5 toughest dogs in the neighborhood, my cat's ranked #3
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