Welding up a gap

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Im currently on a project that im doing for my own farm use and i accidently cut to much off a piece of square tubing at about 120-140 degrees starting form the front and getting smaller as you go back. The gap is about 5/16 or 3/8. How could i weld up this gap?Miller Dialarc 250Miller Bobcat 225Hobart Oxy/FuelCouple of Dewalt and Milwaukee GrindersJET Bandsaw and Drill Press
Reply:Can you slug it with some small round stock?Don’t pay any attention to meI’m just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
Reply:Tack a backer strip inside the tube (flat piece of scrap), it will help you not "fall through" when filling the gap.Then just weld-on Goal is to tie all three pieces together (including the backer).Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:^^^^^^^^Yup and Yup^^^^^^^^I hate being bi-polar it's awsomeMy Heroes Have Always Been Cowboys
Reply:butter, then slug weld
Reply:Originally Posted by MinnesotaDaveTack a backer strip inside the tube (flat piece of scrap), it will help you not "fall through" when filling the gap.
Reply:Coming from a guy who creates gaps like a dog attracts fleas, I sure would like to see the pictures.  30+ yrs Army Infantry & Field Artillery, 25 yrs agoMiller 350LX Tig Runner TA 210, spool gunLincoln 250/250 IdealArcESAB PCM 500i PlasmaKazoo 30"  vert BSKazoo 9x16 horiz BSClausing 12x24 lathe20T Air Press
Reply:Originally Posted by CEPSomewhat like a chill ring?
Reply:What size tube ? How thick wall ? if you have a matting piece  to weld to it, just use 6010 and fill the gap.
Reply:Originally Posted by MinnesotaDaveYes, but I'm too much of a backwoods hack to have actually seen one or used one like that
Reply:Just cut a section of tube the same size, bevel all the pieces, and weld away.
Reply:Originally Posted by CEPWhen SMAW we used chill rings all the time to splice pipe pile. When wire feeders came out, it was easier to have a shop roll 3/8” thick flatbar for us to use. The 10-GA chill rings were just too thin for 5/64” self shielded flux core.
Reply:Originally Posted by MinnesotaDaveNever used big stuff like that - needing a 3/8" backer is crazy hot
Reply:Few diff ways to do this. Knock the flux off a 1/4" welding rod, lay it in there and weld over it.If you dont have access to a rod that large, some round stock/bar will work in the same manner.Or, as stated, Butter up each side of the gap till you close it. Just make sure you allow it to cool a little between passes so it doesn't get too hot and drop out on you.Last edited by snoeproe; 01-20-2015 at 09:03 PM.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:when we were running NR305 5/64 we had to use half inch or greater backers.    would blow through the 3/8 like it was 10gauge.    You could only run that flat,  no horizontal no vert or over head.     we used to run it with 4/0 cable because it would over heat the 2/0 pretty quick.Vantage 500's LN-25's, VI-400's, cobramatics, Miller migs, synch 350 LX, Powcon inverters, XMT's, 250 Ton Acurrpress 12' brake, 1/4" 10' Atlantic shear,Koikie plasma table W/ esab plasmas. marvel & hyd-mech saws, pirrana & metal muncher punches.
Reply:CEP must have volumes and volumes of pictures he's collected in his few weeks at this. I can't remember when he hasn't had a picture to show what he's taking about. Gives a whole new meaning to "photgraphic memory".
Reply:Originally Posted by CEP
Reply:I agree with everyone else just put a slug in it and tie it all together.  Should be fine.
Reply:Originally Posted by Welder DaveCEP must have volumes and volumes of pictures he's collected in his few weeks at this. I can't remember when he hasn't had a picture to show what he's taking about. Gives a whole new meaning to "photgraphic memory".
Reply:Originally Posted by kingneroDoesn't NR-211 likes better to be welded at higher voltage? 21 seems very low to me...
Reply:I just did look it up, and you're exactly at the manufacturer's spec.http://www.lincolnelectric.com/asset...P/c3200010.pdfmemory must've failed, I was thinking at a few V more than that.
Reply:Originally Posted by kingneroyou're exactly at the manufacturer's spec.
Reply:I thought you were up to about 8 weeks now.......
Reply:Originally Posted by shortfuseI thought you were up to about 8 weeks now.......