Ask your WELDING questions here.

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

  1. N-m

    N-m Captain 2 Sexy

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    I doubt that. Use what feels good to you and fits your budget. Small lenses don't work for me in anything but 3G/F positions.
  2. N-m

    N-m Captain 2 Sexy

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    According to the EPA ozone in low levels is dangerous.
  3. jules083

    jules083 Long timer

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    Mud drum from a package boiler built in the 70's. We keep plugging tubes as they blow out, just trying to limp another winter out of it. They run it one week a month roughly, and it normally blows 3-5 tubes every week. It's shot.

    Don't mind the ugly slag covered weld. Only picture I have.

    [​IMG]

    Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
  4. N-m

    N-m Captain 2 Sexy

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    People call me crazy but I would have to try that given the opportunity just for bragging rights.
  5. Desert Skies

    Desert Skies One brick shy...

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    I did a search for this but at over 3K posts, didn't want to wade through all the pages to find what I'm looking so forgive me for asking what I sure has be answered several times. :shog

    I started welding with Oxyacetylene and stick then got a MIG. I am by no means a pro welder, more of a hobby welder but I've built a lot of metal projects like trailers and work benches and so on.

    Just recently, I bought a Miller Diversion 180. I want the ability to weld stainless and aluminum as well as very thin stock. I am buying supplies and have a question on filler rods, particularity ER70S.

    I'm thinking I want the 2s but do I need 6s as well? Most of my carbon steel TIG welding will be new stock square and round tubing and flat bar with oils and mill scale.

    Thanks amigos...
  6. bobivey

    bobivey Adventurer

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    My opinion, 70S2 for 99% of mild steel TIG welding
  7. Spacelord

    Spacelord Mutha Mutha

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    Don't forget to stamp it.
  8. David R

    David R I been called a Nut Job..

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    I use only S-6. Its the same as the mig wire I use. I find it flows better. Not all will agree with me. S-2 is more viscous (thicker) puddle . To each his own, so try both.

    From the phone in my shoe
    Maxwell Smart Agent 86
  9. ER70S-2

    ER70S-2 Long timer

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  10. Desert Skies

    Desert Skies One brick shy...

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    Yeah, I did some test welds after I unpacked it on some uncleaned flat bar drops. My first two welds with a TIG.

    [​IMG]

    left was with ER70S-6 and right was fuse with no filler.

    I had to swap out my C25 bottle at lunch so I picked up some 2s to try out.

    Thanks...
  11. David R

    David R I been called a Nut Job..

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    No matter what filler I use, the mill scale has to go. I grind it off.

    One customer I have only buys Cold rolled steel. No mill scale. I tig everything I do for him.

    I have used both S-2 and S-6. With the S-2 it does not flow as well so I tend to use more heat which is not needed.

    My Thermal Arc Arcmaster 185 (inverter) bit the dust. I bought a Lincoln Precision tig 225 to replace it. I miss the arcmaster. Going to try to get it fixed or just get a new one as a back up. I used the arcmaster for aluminum.

    David
  12. KTM640Dakar

    KTM640Dakar Motorsick

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    ER70S-2 uses Zirconium, Titanium, Aluminum, as well as Silicon, and Manganese to deoxidize the weld puddle.

    Er70S-6 just uses silicon and manganese to deoxidize just more of it. The additional si makes the weld puddle flow better.

    In the end both will work well on clean steel.
  13. KTM640Dakar

    KTM640Dakar Motorsick

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    David - You should weld with a Lincoln Invertec V205T AC/DC. It will make you not miss your old Arcmaster.:evil
  14. David R

    David R I been called a Nut Job..

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    I have seen this debate for years for MIG and TIG. I must say you explained it the easiest to understand.




    I thought the PT 225 would do more than the arcmaster 185. At 230 amps I can run ONE 3/32 4043 filler. If I run 2, the hot light comes on.

    Arcmaster never popped a 30 amp breaker. PT225 popped a 60 amp yesterday.

    These are what we are welding. This is the preheat for 3 minutes.
    Tube is about 3/8" wall, block on the end is solid.
    [​IMG]

    I only do about 5 of these a year. All the other aluminum work is smaller.

    I also have 2 V350, one with the pro panel. I tig carbon steel with one of those Its sweet!
  15. KTM640Dakar

    KTM640Dakar Motorsick

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    Get a bottle of helium and use the V350 DC-. You can use a sharp tungsten

    The reason the PT225 draws more current on your breaker is because it is a transformer power supply. The inverters like your old Arcmaster are an inverter and uses much less power to run.
  16. Schlug

    Schlug JockeyfullofBourbon

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    put something on and stay in that position.

    I've never even seen a footpedal in the field or fab tent for pipe. But we do often use remotes and it's not uncommon for the fitter to run the remote for the welder on the big inch (think 30"), or run both remotes for welders brother-in-lawing heavy wall big inch. Gotta control the heat some way. When you get to the top of 30" .75 wall she's scorching.


    I'm a steamfitter so we don't do tubes, but can you backfeed the weld? I don't what gap you're running or what the material is. I don't scab on boilerhogs so I'm no use, I'm afraid. When welding stainless, dry washing a root is an excellent way to get suckback and bust the weld, amongst other things.


    Speedglass helmets are retardedly expensive. I use my old Fibremetal with a pipeliner rig and a piece of glass. Watching your helmet come screaming down from 80 feet up and smash on the ground is shitty enough without a 285 or 300 or 360 dollar hood going to bits. With my Fibremetal I just collected the parts and rebuilt it.

    or a 520 dollar OMG hood. I like the idea but fuck me, boys.
    [​IMG]

    Mfg Industrial Price: $677.11
  17. David R

    David R I been called a Nut Job..

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    Today I tried DC- with the PT225 on some scrap 1/4" aluminum. No luck. We cleaned the aluminum with solvent. No luck. We ground the aluminum so it was fresh using a wheel made for aluminum. I had 75/25 HE/AR at 25 cfh. The welding gods were just not smiling on us today.

    For the helmet. One winter I was working on a cell tower. PLOW my way in, shovel the snow off the job, PREHEAT the work and weld. I packed up for lunch and left my miller elite on the back of the truck. SHIES! $300 helmet gone with the wind. I replaced it with a Lincoln Vista. Good optics, heavier and no gasket between the front "glass" and the auto dark lens. It fills up with smoke in between the two lenses. I then bought another Miller Elite. The lincoln is a spare.

    David
  18. JonnyCash

    JonnyCash turd polisher

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    Why would you try to weld aluminum with DC?
  19. fxstbiluigi

    fxstbiluigi crash test dummy

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    Tig....... DC..-.. with Helium dosen't require as much amperage as AC with Argon. However, Helium, being lighter than air, dosen't really make for a good shield gass.
  20. Schlug

    Schlug JockeyfullofBourbon

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    put something on and stay in that position.
    :hmm

    When welding aluminum, use AC current and a ceriated [​IMG] (gray identifying band) or 1.5% lanthanated [​IMG] (gold identifying band) tungsten.