Please post your structural innershield welds

Tue, 31 Aug 2021 16:29:17 GMT

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It's been a long time since I ran innershield.  I've been spoiled by the cleanliness of dual-shield for the past 5 months.  I ran some yesterday and the weld looked sloppier than I remember.  Looked more like a combination of 6010 and 7018 stick welds.  It may be because of the brand/type/size of wire.  Or it may be because of my technique   Anyways, I would appreciate it if some people posted some of their structural innershield welds and labeled what size material, wire, and what brand/type they used.  Last time I ran innershield it was .030 and .035 with occasional .045.  Now i'm running some big 1/16" which I haven't used in about 4 or 5 years.
Reply:I'll try to post some 1/16th tomorrow... It's been a few months since I have run it, but I seem to recal dragging everything, including your uphill's.  I can't remember the voltages or wirespeeds off hand, but esab will get you in the ball park with this page: http://www.esabna.com/webcatalog/sho...GID=122&CID=26Common sense in an uncommon degree is what the world calls wisdom.
Replyragging uphill, huh?  Brainfarth, I got the settings right, but I am just trying to look at some other people's.That ESAB seems like a very high disposition wire.  My Hobart recommends around 100imp with 20v or so.  That stuff recommend 23v and over 200imp.  hmmmm...Last edited by WelderBoy; 08-27-2007 at 11:55 PM.
Reply:Fabshield 21B range in 1/16 is 18-20v with 70-144 ipm....recommended settings.    I've taken 1/16 up to 23v and maybe 190ish? on the WS...can't really remember now. No issues with those setting so far. It is easyish to tell when you start pushing it too far. Porosity starts showing up and no matter what you try, it just won't go away. I see it a lot more in .045 than 1/16, too. Not too sure why that is. May be pushing it more??
Reply:It is easyish to tell when you start pushing it too far. Porosity starts showing up and no matter what you try, it just won't go away.
Reply:Originally Posted by SandyHorrible experience. I think I got emotional scars and everything
Reply:I ran the Lincoln NR-232 in .072" or 5/64" (I can't remember which, it's only .006" bigger) diameter at 20V, 200ips wirespeed.  If it has surface pits, you need to up the wirespeed a little at a time or turn down the voltage slightly, if it starts kicking the wire back, then up the voltage.  Depending on the machine and the particular LN-25 I used, I ran between 19-21V and 175-250ips wirespeed, the voltmeters vary a little between different LN-25's and the wirespeed is dependent on a lot of variables (drive roll wear, gun wear, and variations in the roll of wire, etc..)  But 20V,200ips is the baseline we used.PatrickLincoln 175HD
Reply:So nobody has any pictures?  Preferably of a good sound weld.
Reply:Originally Posted by PatrickJIf it has surface pits...
Reply:Originally Posted by WelderBoySo nobody has any pictures?  Preferably of a good sound weld.
Reply:Originally Posted by TEKGot all kinds of pics. Just not in an easily posted format.
Reply:This is an E70C-6M wire run in the horizontal positionThose are some vert-up weave beads with E71T-1 using 75/25 (Ar/CO2)This one is self shielding.  It is E71T-GS wire.  The bottom third is Horizontal, the Middle third is vert-up and the top third is Vert-down.  All run with the same settings, using a penny to show size.
Reply:Nice welds.  Did you weave the root of the second picture?You could use the middle picture for an ad for the wire.  DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:That is what I thought it should look like.  That is how I remember mine looking.So why the hell does my weld look like dogsh1t?  It's embarrassing since I push 30lbs+ of dual-shield a day and my welds are PERFECT and i've run literally TONS of innershield  in the past but my current innershield welds look like diarrhea...Compare.  Here is my innershield weldCompare to my dual-shield welds...You think i'm moving too fast?.Last edited by WelderBoy; 08-28-2007 at 08:44 PM.
Reply:You must have gotten one of those peanut butter shielded rolls.  Wish I knew more about wire, but the dual shield looks titts.Lots of toys.
Reply:WB, it could be that you are moving a tad fast. It could also be as simple as the machine driving it. I would assume you are using an inverter or higher quality electronic machine at work, yes? no? It could be as simple as the arc quality. More practice fine tuning the new setup will help. Give yourself more time to fiddle with the settings before you get upset about the weld appearance.
Reply:Originally Posted by WelderBoySurface pits?  Are you talking about porosity?
Replyatrick, i've seen those.  They happen occasionally at work.  Usually a sign there is porosity underneath.
Reply:Originally Posted by DDA52It could also be as simple as the machine driving it. I would assume you are using an inverter or higher quality electronic machine at work, yes?
Reply:That could be one thing you are fighting then. At work, you have a top of the line electronic machine and with the Linc, it is a lower level unit. One will do great easily, the other will need some tinkering and coaxing to find the sweet spot. I still say you just need some more arc time and fiddling time. You'll find the balance, just keep at it.
Reply:Originally Posted by PatrickJNo, it's just too much heat on the surface, it starts out as little scratches on the edges of the surface (just a tad bit too hot), as it gets hotter it looks like worm tracks.  At first, the weld itself is solid, but the surface looks bad; with enough heat the whole weld would be bad.  It might just be a factor of the wire we use, NR-232 (E71T-8), but I think it also happened with the NR-305 (E70T-6).
Reply:WB, I hate to tell you this, but if you are trying to get your self-shielded welds to look all smooth like your gas-shielded welds, it is just not going to happen.  It is basically like trying to get a 6011 weld to look like a 7018 weld.  They are just different beasties...
Reply:weldrwomn, i've had innershield welds look like dual-shield.
Reply:it was just a thought...generally, they aren't going to look alike, but sometimes they might....
Reply:O'tay here's my best dual shield. .45 with C-25 gas 35 cfh, 250 ipm at 24.5 volts Hobart equipment. Lap is single pass T fillet is three pass.Oops on the dual shield post up. Me bad.
Replyoes "innershied" = fluxcore??...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Yup. Like a rod turned inside out and wrapped on a spool. Sorta....
Reply:Innershield = self-shielding flux coreDual Shield = gas shielded flux core
Reply:Thank you...I'm no "migger"Although way back when I was..Terminology now a-dayze.. ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Replyincoln NR 212 5/64" 150 IPM 23V Attached Images
Reply:Originally Posted by zapsterI'm no "migger"
Reply:Originally Posted by spuddownLincoln NR 212 5/64" 150 IPM 23V
Reply:Originally Posted by WelderBoyDid I cross the line?
Reply:Originally Posted by TEKYes, but you got back in time. No flag---
Reply:Originally Posted by weldrwomnInnershield = self-shielding flux coreDual Shield = gas shielded flux core
Reply:Cored wire with gas goes on faster than anything else.  Easy to run too.David.Real world weldin.  When I grow up I want to be a tig weldor.
Reply:Flux Core wire was originally designed and promoted as a time/money saver, one long continuous weld rod. It was refined to the point where Innershield (fluxcore) grew beyond it's capability to provide an adequate weld. Next logical step was to add shielding gas, hence Dualshield, unreal deposition rates with this stuff. I was running 1/16 inch Stoody brand 316L back in the mid 80's, beautiful stuff. Had to wear a head sock because the flux would actually JUMP off the weld as it cooled, I've seen it fly 6 feet high. Anyway, the reason there are both types is advancements in technologies has allowed it. I was running 3/32 Dualshield a few years ago at 33.2volts/445 IPM, you'd be fighting standard fluxcore at that rate.Anything worth doing is worth doing RIGHT
Replyldddad and David R got it.  Aside from it's high disposition rate Dual-Shield gives very clean looking welds.  It's hard to make a bad looking weld with the Select-Arc 720 75/25 we use at work.
Reply:One of the other reasons to use Gas-shielded Flux Core is that it is wayyy more versatile.  There is only so much you can do to solid wire to make it work with different alloys of steel and such, but with flux core, there are virtually unlimited opportunities to modify it depending on your special application.  If you want different strengths, they are avaliable, there are gas-shielded flux core wires for different types of stainless, or hardfacing, or even metal core wire.  Solid wire really isn't anywhere near as versatile.
Reply:After all that...I love this place..  ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.