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Upside-Down Welding Questions

F

FBH44

Well-known Member
Gonna weld some 1/4" plates underside my farm trailer, not for highway use, just around the farm. Anything to look out for, anything to avoid? 1/4" steel, Forney wire-welder, 0.030 wire, no gas. Rather not learn upside-down things to avoid the hard way.
Thanks.
 


Back off the heat just a little from what you would run doing it upright. Also clean the area to be welded well.

You will get along a little better.

You may want to make multiple passes with the lower heat to get a solid weld.

Gary
 
Have you got a loader so you can tip it over?
This may be totally different- I replaced a floor in one of my old dump trucks. What a job!! It was welded to the cross members everywhere. When I laid the new sheets in, I said to heck with that, and welded around the edges and the seem down the middle. Worked out fine.
 
Read up on the type of stick if stick welding. Some don't splatter as much as others. I think 6011 is real bad about it but a 7018 splatters little. That's the two rods I use for most all my welding other than MIG for light duty. 60ll penetrates deeper and leaves a mess whereas 7018 is a shallower weld and leaves a nice bead, few if any splatter droplets. Course I got my welding certification from "Hard Knocks U" and I am not all that picky. Grin

Mark
 
Don"t turn heat down. Try stitching the weld. Weld small beads about 1/2 to 3/4 long. If your using a self darkening helmet, you can see just as the puddle looses its red color them come back and overlap your next bead. The time is actually very quick, so you don"t loose too much heat. Not a big fan of the flux core. Buy a regulator and a bottle of CO2.
 
EAR PLUGS!!!!! You will only need to feel and listen to one hot ball roll into your ear to learn that lesson.
 
Sometimes welding upside down is necessary but can't you take a tractor and boom pole and at least lift/hold the trailer unto one side until your welding vertical? If not turning it over completely to do the job.
 
It's called "overhead" welding. Using that term in your search will help you find more/better information on it.
 
Practice on some sort of a mocked up set-up before you do the actual job. Better to learn on a practice set-up rather than on your actual job and regret results.
 
not really what you're asking and others have touched on this - but I do have to recommend a leather welding jacket.

My forearms are all scarred up from the few times I've welded upside down. If not leather - make sure you're at least not too flammable.

You'll be dripping a LOT until you get a hang of it.

And tighten your belt if you're standing and reaching up - I was soldering and had hot solder drip right down past my belt - reaching over head your pants get loose - at least on me. thank god that was just solder and not molten steel.
 
You better have it clean or you are just wasting time you wuld be better off turning the trailer upside down so you can get the area clean and how are you going to hold your piece up to the trailer.welding 1/4 plate needs great heat with your welder and 30 wire is too small.
 
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