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Started vertical up in class. 6013,1/8", about 75-90amps. Just stringer bead, can't get hang of it. Need a pic to see what it's supposed to look like. Not being taught to whip or anything just go UP. I have about a 5-10 degree angle (electrode in the stinger) while moving straight up. Just can't get it.
Reply:Are you doing stringers up a plate or welding a T, or lap joing together? keep a consistant arc length.Nothing Ever Got Done By Quitting, Never Give Up.
Reply:Yeah, joint design and plate thickness. I'll give it a shot tomorrow.DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:Just a plate right now. About 3/16 to 1/4 inch. I know part of my problem is I am going side to side (unsteady) as I move up. I need to see what it is supposed to look like though.
Reply:I'm a bit confused. I went to welding school in 1979 & 1980 and the instructor always welded the joint first to show what it should look like.Ask your instructor to show you how it's done.
Reply:Yeah nothing against him but he isn't the greatest teacher. He knows what he is doing and everything but teaching is another. Basically he kinda gives us tips or tells us what is wrong. You get know where practicing when your doing it wrong. All he told me was I was moving side to side and to keep gap consistent. But I need to see it done ya know.
Reply:OK, 6013, 3/16" plate stringer bead vertical up.First is with slag on. Beads are DCEN (-) 70, 80, and 90 amps.Next 3 are DCEP (+) 70, 80, and 90 amps.Straight polarity. Negative electrodeReverse. Pos electrodeIt took a REAL steady hand to do this. I leaned against the bench, held the stinger in the right hand, electrode in the gloved left hand and moved up slowly.Pipefitter is the man with 6013.DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:You held the electrode with your off hand? Is that normal?
Reply:As long as it's a gloved hand, it really helps to keep it steady. When I was taught, we used 75cm rods so without your spare hand it would be shaking all over the place. Make sure the glove stays dry so you don't get any shock!www.abou27.com
Reply:I'll have to try that cuz I know alot of it is i'm not steady. The other is probably getting the travel speed right. Right now i'm just getting gobs falling down and big gaps where I move too much. Pic really helps with what i'm shooting for. Is the stringer harder then the weave? Seems like weave would be easier?
Reply:Weave is MUCH easier. A vertical up fillet is easier yet for me.How often do you have to run a bead on plate? If you are welding 2 pieces together, there is a groove, or lap or fillet or something to weld to. Try a weave up. go side to side about 3 rod widths. Don't go up until you start to move back into the puddle. PAUSE at the sides to prevent undercut.David.Real world weldin. When I grow up I want to be a tig weldor.
Reply:i noticed this thread a few days ago but i didn,t have any pics of vertical up stringers.the only time i run this type of bead is 6g, and overhead fillet welds.i have a feeling your instructor may be getting you used to single bead runs fusion perhaps to help with root passes in future, though i know you lads never use 6013 for this purpose.i know now seeing davids runs ,what it was you wanted to see.i had already dug out a piece of scrap channel in work and ran this fillet,im sorry about the state of the welds but the wire brush i used was plastered with jointing paste.the only rods on site were 2.5 so here you are. pipefitter. ps i find leaning on my left elbow and holding my right hand in my left steadies me.
Reply:I think your instructor is trying to get you used to running stringer beads straight up. It is much easier in a fillet joint or in a bevel than on flat plate. Big old woven welds are becoming a thing of the past and are strictly forbidden under some if not most codes. If I remember correctly ASME codes prohibit them. Most codes now cover the width of the bead that can be run based on the size of the rod. I believe it is 1.5 times the rod diameter. I.E. 1/8 rod means 3/16 wide bead. I've worked on heated pressure vessels where that was the standard and they inspected every pass. If it was over you ground it out and did it again (too many times and you were out the gate kicking rocks). My last pipe job used that for the width. I've never used 6013 for anything. It's always 6010 and 7018, except in the few cases where 7024 can be used.I would seriously recommend a copy of "The Procedure Handbook of Arc Welding" from the Lincoln Foundation. It is the welders bible and anything in it you can take to the bank. It is also an excellent reference for the different processes. Lots of examples and where to go to find additional information if you should need to go more in depth. I really cannot see why it isn't the textbook or a required resource for any college or vo-tech welding program.The difference between art and craft is the quality of the workmanship. I am an artist.
Reply:And the book is ONLY $24.00 directly from Lincoln!DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:I remember back when I was getting my "C" we had to do uphand production tests with 7018 with one hand. that was fun, laying like a 2" fillet about 14" long, and being a total newcomer to welding, doing it all in stringers. 80 some odd rods later...
Reply:We got a couple small Hobart books. My father in law let me borrow "The Practices & Principles of Welding". It is a thick hardcover book with gobs of info.
Reply:Originally Posted by Jolly RogerI think your instructor is trying to get you used to running stringer beads straight up. It is much easier in a fillet joint or in a bevel than on flat plate. Big old woven welds are becoming a thing of the past and are strictly forbidden under some if not most codes. If I remember correctly ASME codes prohibit them. Most codes now cover the width of the bead that can be run based on the size of the rod. I believe it is 1.5 times the rod diameter. I.E. 1/8 rod means 3/16 wide bead. I've worked on heated pressure vessels where that was the standard and they inspected every pass. If it was over you ground it out and did it again (too many times and you were out the gate kicking rocks). My last pipe job used that for the width. I've never used 6013 for anything. It's always 6010 and 7018, except in the few cases where 7024 can be used.I would seriously recommend a copy of "The Procedure Handbook of Arc Welding" from the Lincoln Foundation. It is the welders bible and anything in it you can take to the bank. It is also an excellent reference for the different processes. Lots of examples and where to go to find additional information if you should need to go more in depth. I really cannot see why it isn't the textbook or a required resource for any college or vo-tech welding program. |
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