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Thread: Welding Fail! post pics here.

  1. #2476
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by bead-boy View Post
    Working with metal or working with smelly chemicals ? I think all the members here would choose metal construction.

    I have a Van's RV6 two wheeler sitting in the crates. Waiting for that winning lottery ticket so I can retire and hide away in my shop and build the thing (after buying a twin turboprop to use while I build the RV6 )
    Much can be (and I would argue should be) done with pre-impregnated glass and/or carbon fibers, vacuum bagged, then baked. Very little smelly chemicals and much less smelly/deadly than that zinc-chromate paint on the aluminum interior of the structure.

    Good luck with the lottery, but I'm trying to beat you to it.

  2. #2477
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    Re: Welding Fail! post pics here.

    the forktruck and the pallet jack had a run-in. The pallet jack lost.


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    Doesn't look as though the weld broke through the scale on the cast part. It lasted 25 years that way, so I'll just mig the handle back on. Might just get another 20 more years out of it.
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  3. #2478
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    Re: Welding Fail! post pics here.

    Snap-on YA212 with 70-s6 .035 , 75/25 gas 20 cfh (outdoors)

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    Will now re-assemble, who knows how long it will last ?
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  4. #2479
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    Re: Welding Fail! post pics here.

    That oughta do. I've gotten a couple of free easy fix pallet jacks because they don't want to fix them. Rather buy new

  5. #2480
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by motolife313 View Post
    This is either 24 or 26 volts on some painted I beam that might be thinner then 1/8” and 11 gauge steel. I like it to really be able to dig in like this when I move forward. I like to have a aggressive movements and the welder needs to be hot for that style. Can weld faster this way and get way better penetration over slow welding at low volts
    Attachment 1711755
    fail! Because he doesn't want to understand what a "good" weld is.
    Last edited by Munkul; 05-28-2020 at 04:25 AM.

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  7. #2481
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by Munkul View Post
    fail! Because he doesn't want to understand what a "good" weld is.
    Are we talking about Moto? He doesn't understand much, but a good weld, he understands.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  8. #2482
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by Willie B View Post
    Are we talking about Moto? He doesn't understand much, but a good weld, he understands.
    Does he?
    Anyway I'm sniping, I shouldn't have, and I'll stop now.

  9. #2483
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by albrightree View Post
    the forktruck and the pallet jack had a run-in. The pallet jack lost.


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    Doesn't look as though the weld broke through the scale on the cast part. It lasted 25 years that way, so I'll just mig the handle back on. Might just get another 20 more years out of it.

    Some say that’s how the weld is supposed to fail

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  11. #2484
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by Munkul View Post
    fail! Because he doesn't want to understand what a "good" weld is.
    Thank you, the crater could possibly start cracking and fail yes.

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  13. #2485
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by motolife313 View Post
    Some say that’s how the weld is supposed to fail
    The weld looks pretty crappy but would need to see better pics. The weld is too small the tube thickness for one thing. Fillet weld break tests are based on the proper size weld and welding technique. Crappy welds all bets are off.

  14. #2486
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by motolife313 View Post
    Some say that’s how the weld is supposed to fail
    Some would be wrong.
    next to no penetration past the toes. Hence it's broke at the weakest toe.
    Its classic MIG lack of penetration.

  15. #2487
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by Welder Dave View Post
    The weld looks pretty crappy but would need to see better pics. The weld is too small the tube thickness for one thing. Fillet weld break tests are based on the proper size weld and welding technique. Crappy welds all bets are off.
    OK , call my weld crappy, but I thought the pictures were pretty spot-on. LOL


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    Many manufactured items have welds like those. Hot fast shallow. The handle simply popped off with no damage to the cast piece. in fact the weld metal at the bottom of the tube(that didn't fuse with the casting) has the same texture as the casting.
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  16. #2488
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    Re: Welding Fail! post pics here.

    Operators were removing covers on a spiral conveyor. Had to use mallet to move stuck cover. They didn't have to hit it too hard, then this fell off. 3/4"x1/2" bar welded(slagged to) 11ga. sheet. 304 stainless steel.

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    Would have liked to spent some time on this, but there was a big push to get material produced. Ground worst parts off, flap disc on plate, a few short mig welds, wash , sanitize, install. next.......
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  17. #2489
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    Re: Welding Fail! post pics here.

    No penetration at all.
    .





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  18. #2490
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    Re: Welding Fail! post pics here.

    This thread is my motivation to practice, practice, practice. I look at these pics, then head out to my bench and grab some scrap, paper and pen, and find out what I'm doing wrong today (Did I turn the bottle on, did I turn the fan away from the area, how does this inductance setting work, etc.)

    So much like the driving range - a few bad shots, then a sweet one - then "what did I just do?"

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    By the way - was does raising and lowering the inductance actually do - in laymans terms?
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  19. #2491
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    Re: Welding Fail! post pics here.

    Turn the wire speed and volts up john

  20. #2492
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    Re: Welding Fail! post pics here.

    inductance controls the harshness of the arc and the resulting spatter. Also do what moto said.

  21. #2493
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    Re: Welding Fail! post pics here.

    Inductance controls the pinch rate of the wire droplets in short circuit mode. It's a very nice feature to have and would be good to experiment with. I thought we established that Moto has his own ideas on Mig welding that don't jive with established procedures. For Shootr it looks like your travel speed is too slow for the amount of weld metal. Adjust one parameter at a time. I would try a little faster travel speed and then turn the volts up in very small increments to flatten out the bead. See what it does but remember your starting point. You could try turning your wire feed down in small increments too so it better matches the voltage setting. Slow side to side twisting/weaving or little circles can help with bead shape and tying the toes of the weld in.

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  23. #2494
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    Re: Welding Fail! post pics here.

    Jody always talks about "No intentional motion".
    He oscillates a bit, some people don't. Drawing a straight line might be natural for some people. For others a straight line does not come easy. I can't draw a straight line. It oscillates somewhat.

    What I'm saying is a bit of motion is needed to flatten a bead. Not much,

    MIG is known for Lack Of Fusion. To visually inspect a MIG bead, look at the meeting of weld (filler) where it meets steel that hasn't melted. It should spread, like it was wet. If you can see it in cross section, it looks like a bead of water on a neglected hood. If it beads up, like new wax would, it is too cold. Under stress, LOF (lack of fusion) will fail where filler meets weldment.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

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  25. #2495
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by John T View Post
    No penetration at all.
    .





    Sent from my iPhone using Tapatalk Pro
    i've seen that lack of fusion when one of our "welders" used straight argon in the solid wire mig machine when co2 wasn't available. the weld penetrated on one side and just sat on the surface of the joint without the least bit of fusion.
    i.u.o.e. # 15
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  26. #2496
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    Re: Welding Fail! post pics here.

    There's a whole lotta fail going on in those pics, paint dripping, wall penetration caulking...

  27. #2497
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    Re: Welding Fail! post pics here.

    I’ll just post this here so munkul doesn’t have to move it from show us what you welded today thread to hereName:  43C85CF7-E789-44F3-A9FE-4940A72CA1E2.jpg
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Size:  89.9 KB I ran everything at 21 volts 258 wire

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  29. #2498
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by docwelder View Post
    i've seen that lack of fusion when one of our "welders" used straight argon in the solid wire mig machine when co2 wasn't available. the weld penetrated on one side and just sat on the surface of the joint without the least bit of fusion.
    Yeah itís funny they had a great welder there for about two months
    Welding all the gas pipe connections from the street to the buildings to the rooftops etc.
    I talked with him a couple times over coffee.

    I got the impression that he was making some good bread $$$

    Must have been so

    Because when he was done they brought in the monkey crew to fab up the protection guards.
    Out of about 25, probably 15 are busted already.
    LoL!


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  30. #2499
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by TimmyTIG View Post
    There's a whole lotta fail going on in those pics, paint dripping, wall penetration caulking...
    I think the paint was holding them together.
    LoL!


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  31. #2500
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    Re: Welding Fail! post pics here.

    Quote Originally Posted by John T View Post
    I think the paint was holding them together.
    LoL!
    It's only gas John, would could go wrong?

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