Ask your WELDING questions here.

Discussion in 'The Garage' started by KTM640Dakar, Mar 5, 2007.

  1. slackmeyer

    slackmeyer Don't mean sheeit. .

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    Newb question here:
    A friend was moving, and gave me an older Lincoln buzzbox (A-225S, I think the model is), and a big (open) box of 7018 electrode, probably open in a humid climate for the last 15-20 years. I think it works, though I'm still waiting for the local utility to give me a new service drop so I have 220v at my house.
    Anyway, I've never stick welded before, though I've done a bit of some other types (mig and tig, and a fair amount of gas welding). This seems like a decent enough welder to play around on and make some functional stuff. If it doesn't work for me, I'll try to trade it for a mid size wire feed welder. My hope is that I can dry the welding rod just before I use it with a light bulb/ cardboard or wood box arrangement.
    Any comments, either about the rod, the welder, or whether an old simple stick machine is a good all-purpose tool these days?
  2. David R

    David R I been called a Nut Job..

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    Perhaps you could just buy a few pounds of 6013, 6011 or 7014. All are AC rod and for all position.

    Baking the 7018 will dry it out but its still a DC rod.

    If you have dirty metal, clean it. :D

    David
  3. clintnz

    clintnz Trans-Global Chook Chaser

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    I want to TIG weld a 4" dia bit of stainless steel tube to a mild steel collar, what filler should I use, stainless, ER70S2 or ? (assuming '?' is likely to be available at the local engineering supplies store)

    [​IMG]

    I have machined a recess in the ring so the tube fits in snugly & will be able to weld the inside end as well as put a fillet on the outside. Any other tips on welding SS to plain steel appreciated.

    This is the start of the exhaust pipe for the ginormous turbo a mate is busy bolting to the side of the 1JZ Toyota motor in his race jetboat. The ring still needs to be machined down a bit a fit the v-band that will clamp it on the hairdryer. We will probably be adding a support brace for the tube so it can't flex & crack at this join.

    Cheers
    Clint
  4. NitroAcres

    NitroAcres MotoBiggots Suck

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    Use Stainless wire...
  5. EvoLife

    EvoLife Evolving.....Slowly

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    ER309L is the general go-to for carbon to stainless IIRC
  6. fxstbiluigi

    fxstbiluigi crash test dummy

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    That may not be easy to come by where he is.
    About a year ago or so I was going to send 1 lb of tig wire to a guy in NZ.
    The wire didn't cost me anything as it came from my former employer however the postage was well north of $50.00. I didn't send it.
    E-309L is the preferred dis-similiar fill wire but E-308L will work.
  7. EvoLife

    EvoLife Evolving.....Slowly

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    I would think with all the boat building on the North island, stainless filler should be abundant.

    But then again I could be wrong. It seems to happen daily.
  8. clintnz

    clintnz Trans-Global Chook Chaser

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    Thanks Guys!

    I work in the pulp & paper industry & they stick stainless onto carbon steel quite a bit so there's a good chance the rods for it will be available here, if not, or if they only come in big packs I'll see if I can bum a couple of lengths from one of the local workshops.

    Cheers
    Clint
  9. slackmeyer

    slackmeyer Don't mean sheeit. .

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    Thanks.

    I read somewhere that 7018 could be an AC or DC rod, but mine just says "7018", so it's probably made for DC like you say. I'll get a little starter kit of some of the 6 series rods.
  10. David R

    David R I been called a Nut Job..

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    7018 will run on AC, but its aggravating. It sticks to the plate when starting especially with a buzz box. Not the best way to learn to stick weld. Good idea to use something easier until you get the hang of it. Then try the 7018.

    Have fun and show us pictures of your welds.

    David
  11. xcflyn

    xcflyn Long timer

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    :thumb +1
  12. larryboy

    larryboy Chopper Rider

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    I've got a couple boxes of 7018AC you can have. They're just collecting dust since I have a mig at home now.
  13. slackmeyer

    slackmeyer Don't mean sheeit. .

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    That would be most excellent for my screwing around with metal. I wish PG+E would get around to giving me 240v. . . .
  14. larryboy

    larryboy Chopper Rider

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    I'll put them in the trunk, stop by the dump Mon-Fri, 1300-2130 hours.
  15. clintnz

    clintnz Trans-Global Chook Chaser

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    So I called in at a local engineering business that does a big variety of stuff & asked for a few lengths of 309L, the bloke said 'Nah mate, what you need is some MG600' So for a couple bucks I walked out with some of that. It seemed to lay in nicely considering my n00b skill level.

    [​IMG]

    The butt welds on the rest of the tube with normal ss rods were nowhere near as pretty. I think I need to set up a purge on the inside to improve those.

    Cheers
    Clint
  16. kirkster70

    kirkster70 moto junkie

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    I think you are doing a fine job! Keep up the good work, Clint! :clap
  17. xcflyn

    xcflyn Long timer

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    I agree with Kirk ! looks pretty darn good. :thumb
  18. KTM640Dakar

    KTM640Dakar Motorsick

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    Hi Zak, some 7018AC rod has a little bit of potassium in it to help the arc when using an AC buzz box. It would be easier for you to maintain your arc with it.

    The old rod probably has alot of mositure in the coating so if you see porosity in your welds it is from the hydrogen mixing into your liquid metal from the H2O.

    You wont pass an x ray test but it would be ok to practice with.
  19. Jayrod1318

    Jayrod1318 Poster

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    My water cooler rig is seized up on my tig welder. It's been sitting for lots of years unused. I've only used the thing to stick weld a couple times.

    I'm not planning on doing any heavy work, so I don't think I need the water cooler. Apparently there is still water in the line because I could strike an arc.

    I'm I in danger of screwing something up without the cooler/pump going?

    Do I need to swap the torch and lines out with a dry one?


    Also, FYI argon co2 mix does not work for Tig. Couldn't figure out why I was burning up tungsten:lol3
  20. ER70S-2

    ER70S-2 Long timer

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    You should be able to strike an arc; current doesn't care whether there's water or not.

    Yes, the leads are depending on water to keep from melting the liner. bbzzzzzttttt

    :nod

    :rofl
    Wasn't so funny at the time was it. :bluduh

    fwiw: My answers are for the TIG torch, not arc welding. :freaky