todays advanced mig assignment

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3/8s plate 3G vertical down root 035 E70S-6 millermatic 350P 19.5v 250ipm 1/8inch gap no landing. Hot pass and two pass cap lincoln ultracore 045 with 75/25 23.5v 280ipm vertical up.First attempt, first assignment. Grade A. The instructor likes me and I'm a week behind got to get on these 4F multipass Ts. Its one of those good enough welds...
Reply:Looks a whole lot better than my 1st attempt. What Ultracore wire were you using? I see you listed using 75/25 and a coworker loaned me a roll of Ultracore 71c to try out but the spec sheet shows 100% Co2. Will the 71c burn with 75/25 or just make a mess?TOO MANY TOOLS & NO MORE SPACE
Reply:All mig at my school is done with 75/25 so I guess they just buy wire that works with it. I'm not sure which one it is tho. To tell you the truth I was looking for outershield and we were all out so grabbed this. I like the outtersheild better, it doesn't have as many ripples and humps in it when I weld with it, but I guess flux core is flux core.Last edited by jamesyarbrough; 09-05-2013 at 07:32 AM.
Reply:I like the root. Cap looks like you tried to sew a donkey's *** with a grapevine lol. I know a lot of people like to run fcaw hot and fast. I usually stay around 22.5v and 225. It should be like sliding in your socks on a polished wood floor. I've done a few "good enough" welds in school. Mostly during high frequency aluminum.. I'm not a big fan of that sort. I'd rather tig weld pipe.
Reply:The cap actually looked a lot worse in the pic. The welder was set fine and the wire was flowing in perfect. It looks bad cause my *** was welding like Michael J Fox.    Next flux core assignment I'm gonna switch back to outer shield and see how I do. Right now I'm working on over head multi pass Ts with ER70S-6.I got the crap to quit crowning on me last night, but it still could be better. I'll try to get some pics next week.  Overhead with hard wire sux. It takes some talent
Reply:2nd pict is of the back of the root I assume. It's not bad, but it looks a bit rushed. You could probably slow down a bit. I'm also not digging the long straight "crack" looking line running the length of that pict. If it is a crack, then you need to correct that issue.Top is just ugly.You can definitely tell you need to work on consistency. Both look a bit on the cold side. The lower one especially doesn't look like the toes wetted in well..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Originally Posted by jamesyarbroughAll mig at my school is done with 75/25 so I guess they just buy wire that works with it. I'm not sure which one it is tho. To tell you the truth I was looking for outershield and we were all out so grabbed this. I like the outtersheild better, it doesn't have as many ripples and humps in it when I weld with it, but I guess flux core is flux core.
Reply:That is a shame that they only have 75/25 gas at your school, there is such a big world of mig welding out there beyond 75/25.  I've got ultracore in a machine with 75/25, I haven't really decided how I like it, I feel that regular dual shield with c02 might be a little more forgiving but I'd rather keep 75/25 on hand than c02.
Reply:Kind of off the subject but not really....why would you use flux core wire with gas? Why not just solid wire when you have gas or flux core when you don't? Maybe it's a dumb question but I don't know the answer....Big F**king HammerJumper cables & 2 marine batteriesJaws of life
Reply:Originally Posted by rschreckKind of off the subject but not really....why would you use flux core wire with gas? Why not just solid wire when you have gas or flux core when you don't? Maybe it's a dumb question but I don't know the answer....
Reply:In my limited flux core experience, it's been a lot smoother with gas.
Reply:Just did a quick vertical up weld for this post. I tend to use the weave pattern on vert ups with dual shield MIG wire. 3/16" plate T-joint weld. This was .045 Lincoln Ultracore ran on 23.5 volts, 200 IPM. S-22 feeder with a Miller XMT-300 using 75/25 gas mix. The pic was taken from my iPhone which for some reason loads sideways on this site. Can't figure out how to correct it..  Attached ImagesLast edited by JLE-ENT.; 09-06-2013 at 02:10 PM.Miller XMT-3502 Lincoln Power Mig 140C (One w/ dedicated spoolgun)Jackson NexGen / Miller Digital EliteMiller S32P SuperWeldcraft 17fv & 9fv Tig TorchVictor & Purox O/ALincoln Ranger 9Fairly Cold Beer!!
Reply:That's a nice bead! I don't know why, but for me it was easier to do 3F than 3G. Guess cause the t kinda gives it something to hold on to.
Reply:Originally Posted by DSW2nd pict is of the back of the root I assume. It's not bad, but it looks a bit rushed. You could probably slow down a bit. I'm also not digging the long straight "crack" looking line running the length of that pict. If it is a crack, then you need to correct that issue.Top is just ugly.You can definitely tell you need to work on consistency. Both look a bit on the cold side. The lower one especially doesn't look like the toes wetted in well.
Reply:Originally Posted by rschreckKind of off the subject but not really....why would you use flux core wire with gas? Why not just solid wire when you have gas or flux core when you don't? Maybe it's a dumb question but I don't know the answer....
Reply:Originally Posted by jamesyarbroughThere's no crack. Just cheap cell phone pics.  Those humps look huge in the pic but in reality they didn't stand up much. That ultra core seems to like to plateau rather than tie in smoothly at the toes like outer sheild. The root kinda sux imo, you can't see it from the pic but it was almost flat. It needed more penetration.  Still its not what I want tho. I just kinda rushed it because I didn't wanna burn a bunch of 3/8s plate up (we don't have much) and I was wanting more time to work on the current assignment which is 4F Ts with solid wire. That's tough! It just wants to fall on the floor!  But I think I got it now. I ended up going with a push and a lot of heat. Only thing left is to get a few more practice runs in before I turn some in. I will try and post some pics
Reply:Man its a community collage. I pay $300 a semester and burn more than that in filler metal. We get all of our metal except pipe and 1 inch plate from local company donations.  I can't bitch about it, I'm welcome to as much plate as we have but I don't wanna be a dick ya know? Won't be too much longer and I will be burning up some 1 inch in class tho. There's no getting around it. We certify on 1inch and go threw all the positions.  Maybe one day I can afford to go to hobart or tulsa welding school, but for now $15K is out of the question....especially for a hobby.
Reply:Originally Posted by jamesyarbroughMan its a community collage. I pay $300 a semester and burn more than that in filler metal. We get all of our metal except pipe and 1 inch plate from local company donations.  I can't bitch about it, I'm welcome to as much plate as we have but I don't wanna be a dick ya know? Won't be too much longer and I will be burning up some 1 inch in class tho. There's no getting around it. We certify on 1inch and go threw all the positions.  Maybe one day I can afford to go to hobart or tulsa welding school, but for now $15K is out of the question....especially for a hobby.
Reply:Ok so here's assignment #2. Over head, multi pass T joints. Millermatic 350P 20V 260ipm .035 ER70S-6 cursive e technique pull
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Reply:Little bit of spatter but all in all not too bad. The cell phone pics kinda suck. Next up aluminum!
Reply:they dont look bad. i just picked up spool of .045 ultracore 71a85 going to play with it this weekendR.T. Welding LLCOn Site ServiceColumbus, NJ