How would i weld this?

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I want to practice welding on some thin scrap tubing using a Lincoln weldpak. All i got is .035 innershield 211mp right now. It has the easy settings like high1,2 and low1,2. So i figure low one and maybe a wire feed speed of 2 or 3? Should i use a C pattern weld to avoid burn through? Here's some pics all fitted up pretty perfect. I just want to get better mig welding on thin tubing as i dont weld thin stuff that much. ThanksClamped TogetherTacked
Reply:How many do you have? Just give it a go at it and try it out. I mean it is scrap metal. That is what I learned.Also, use the manufactures rating for the thickness of the metal and take it from there.
Reply:I just made one, but i might make a few and also give a shot at gas welding them too.
Reply:It's going to be tough to get the perfect puddle with so little adjustability on that welder, and with .035 wire. But, I would say to try a weave, and to try and leave a little extra stickout on the electrode. It will allow for a slightly cooler weld. You know the answer....practice and burn up some steel will be the only way to get it. If you must stick to fluxcore for now, try to find some .030 if you can.I have used the .035 in the past to weld even EMT electrical crap tube, so you can do it, to a point.And then, after so much work...... you have it in your hand, and you look over to your side...... and the runner has run off. Leaving you holding the prize, wondering when the runner will return.
Reply:That outside point is going to give you the most challenge.
Reply:Firstly, without solid wire and shielding gas, it ain't mig. Sorry, peeves and all that! Secondly, tubing and pipe is more difficult than flat peices. And thirdly, I had one of those style Lincolns, it will start a bit cold, so keep the bead going as long as possible to avoid lots of stops and starts. The thin stuff may want to melt through, but turn it up til it does, then back off a bit. Match wire speed to the voltage selected. The wire speed dial will help with fine tuning. This is one time when downhill welding will help you avoid burning through the thin wall.There are lots of ways you could! A sheet metal trick is to make a series of spot welds, or tacks, until you get all the way 'round. Alternate sides to counter warpage.Good luck!Rusty the Reindeer!   City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Weldershane, Are you still looking for a 80 amp dc welderhttp://cgi.ebay.com/ArcOne-Mini-80-A...QQcmdZViewItem
Reply:I'd vote for the spot welds.If you don't want to stand behind our Troops, feel free to stand in front of them.
Reply:Whoops i mistyped that. Yes i know it isnt mig without the gas. Yea i have done the spot type welds all the way around before but i figured i might give running a full bead with out stopping a try. Ill try it out tomorrow.Tapwelder- Thanks alot for looking, I already seen that one before but i figure now if im gonna get a tig inverter i might as well get one with 150amps on it.
Reply:I would keep the wire on the lower speeds and voltage in the middle.  That is big wire for the job.Pics of when its done.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Best i could get
Reply:Same size welded to 18 guage
Reply:you need to get some smaller wire to do that real nice (remember to choose the right tools for the job this is part of becoming a pro) but keep trying your doing a fair job.Life is tuff,so be sharp  lincoln sp 100  cutmaster101  miller bobcat  miller 250 mig  $thousands in snapon
Reply:Looking good, you did it.  Learn to be more steady.  Support your arm or lean up against something.  You have to be comfortable to weld steady.  Don't be afraid to play with the heat,  up a little or down a little and see how it effects your weld.DavidDavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Thanks guys. Yea i know i needed smaller wire but i just didnt feel like going out and buying a new roll since i just loaded .035 in. But yea if this have had to been done good i would of switched them.
Reply:Not bad Shane.  Just because a project is relatively small and/ or simple, doesn't mean it is not still filled with issues.And then, after so much work...... you have it in your hand, and you look over to your side...... and the runner has run off. Leaving you holding the prize, wondering when the runner will return.
Reply:If you really want to learn to weld forget the spotweld/tack nonsense, it's not a weld but a bunch of cold tacks. Just do what David R said and experiment with different settings and learn what the puddle does with different adjustments. The only way you'll ever be a welder is to learn what makes different things happen. You have to learn control and understand what that molten pool is telling you.Not dissing you, just one man's opinion.Anything worth doing is worth doing RIGHT
Reply:Just a quick question? If he chose to spot weld it all the way around, since he's using flux, wouldn't the slag need to be brushed off between every tack?______________Clarke 95  Lincoln 135  Lincoln AC 225 ---------I'm an idiot, please talk slowing and simple.
Reply:Yes, but that is not the point being made by most. Getting it in the fewest number of longer beads is better.City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Originally Posted by tanglediverYes, but that is not the point being made by most. Getting it in the fewest number of longer beads is better.
Reply:Heh, not ENTIRELY on the subject, but it reminded me of my situation so here goes.  I was using my 110v welder with .035 flux wire and a 14/16 gauge regular old orange backyard extension cord.  I COULD NOT weld worth a dang with it, and I was becoming frustrated.  Recently I sprung for a 12 gauge extension cord and .030 wire, and I tell ya, it was a whoooooooole different welder!!  I mean, i wasn't burning through stuff, I was no longer popping breakers in the house, and the "crackle" noise it made when I was welding sounded JUST like it was supposed to.  I almost never weld anything near as big as 1/4 inch stuff, so I don't see a reason to ever go back to that .035 wire, I couldn't be happier with the current setup.Have a Jeep Cherokee?  Click Here!
Reply:Originally Posted by welderShaneWhoops i mistyped that. Yes i know it isnt mig without the gas. Yea i have done the spot type welds all the way around before but i figured i might give running a full bead with out stopping a try. Ill try it out tomorrow.Tapwelder- Thanks alot for looking, I already seen that one before but i figure now if im gonna get a tig inverter i might as well get one with 150amps on it.
Reply:(I don't not believe FCAW wire is available in sizes smaller than .035)Except for the .030 I'm using?Have a Jeep Cherokee?  Click Here!
Reply:Originally Posted by Donald BranscomI don't not believe FCAW wire is available in sizes smaller than .035
Reply:Don,Lincoln NR211MP is generally a good quality FCAW wire.  BUt it has its limits, one being the workpiece thickness limitation for the 0.030, 0.035, and 0.045 wire is now 5/16 inch MAX plate thickness.  The 0.068, 5/64, and 3/32 wires are rated 1/2 inch MAX plate thickness.Also, the NR211MP wire is a general-purpose wire for steel welding.  And limited structural fabrication where there are no seismic or Charpy V-notch requirements.The Lincoln Innershield (FCAW) wires for structural welding are a whole bunch of other wires.Yes, there are FCAW wires down to 0.030.Just like the one that Skwerly found and used.  But Skwerly's main problem there was using an extension cord that was too thin to supply the needed power to the welder.But I fully agree that using 0.023/0.025 or 0.030 solid wire and shielding gas like C25 (aka MIG or GMAW) would make for better and/or easier welds.  Especially on thin workpieces.Yea it does go down to .030.
Reply:I weld exhaust pipe with my HD on High 1 under the car, on High 2 on the bench, but I have been burning wire for many many years and tons of it. This is with .035 NR211-MP (the same thing I use in my LN-25 and Hefty). You know when they first came out with them they were referred to as wire machines, then it went to MIG, and the machine is still called a MIG (check the manufacturers as in Lincoln's Pro Mig's). The process is what is different, the machine doesn't change. The difference is that self-shielded flux cored wire does not require shielding gas hence FCAW (that's the process) gas shielded wire welding is GMAW (also a process). Any Mig that can run GMAW can run FCAW or gas-shielded flux cored wire.The difference between art and craft is the quality of the workmanship. I am an artist.