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Vertical up stick

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发表于 2021-8-31 22:41:24 | 显示全部楼层 |阅读模式
What techniques are used in vertical up stick welding?  Both for butt joints and T-joints.Welders have bigger rods.Welders achieve deep penetration.Welders know how to fill a gap.Don't eat the yellow snow.
Reply:Also, what rods and machine setting are used?Welders have bigger rods.Welders achieve deep penetration.Welders know how to fill a gap.Don't eat the yellow snow.
Reply:The way I personally run stick up.. I use 7018 either 3/32 or 1/8 (most structural calls for 1/8 I believe). Between 90-115 amps. Usually around the 95-105 range, and usually on the higher side. I prefer to weave vertical up but a lot of places call for stringer beads. When running stringers, you can oscillate the rod in very small circles as you progress but (to me) it's easier to just maintain a steady travel speed and run them straight. I believe rod angle is mostly straight in, 90 degrees. I would say about a 5 degree tolerance for a push angle. I've never used a drag angle vertical so I couldn't tell you.Or you could check out the AWS code. I'm sure it's got what you need in it. Watch the puddle. 50% overlap. For a typical v groove (30-37.5 degree bevels) with a backing bar.. root pass, maybe four or five beads for the fill, and three or four bead cap depending on what code you're welding to. This on 3/8 plate. You will obviously stack more on thicker plate. Anything thinner than that I would try and weld flat. With 3/32 instead. I'm not a big structural guy so don't take my word for it.
Reply:Originally Posted by 7A749Tons of info on 3G vertical welding using both cellulose & Low Hydrogen rods on the boards.I suggest doing a search first. This has been covered a number of times.
Reply:Originally Posted by akabadnewsThe way I personally run stick up.. I use 7018 either 3/32 or 1/8 (most structural calls for 1/8 I believe). Between 90-115 amps. Usually around the 95-105 range, and usually on the higher side. I prefer to weave vertical up but a lot of places call for stringer beads. When running stringers, you can oscillate the rod in very small circles as you progress but (to me) it's easier to just maintain a steady travel speed and run them straight. I believe rod angle is mostly straight in, 90 degrees. I would say about a 5 degree tolerance for a push angle. I've never used a drag angle vertical so I couldn't tell you.Or you could check out the AWS code. I'm sure it's got what you need in it. Watch the puddle. 50% overlap. For a typical v groove (30-37.5 degree bevels) with a backing bar.. root pass, maybe four or five beads for the fill, and three or four bead cap depending on what code you're welding to. This on 3/8 plate. You will obviously stack more on thicker plate. Anything thinner than that I would try and weld flat. With 3/32 instead. I'm not a big structural guy so don't take my word for it.
Reply:Learn proper downhand technique. Uphand sucks. I only did it when it was the(spec'd) rules. It takes a while to get it right but I've passed pipe tests with it.Bubble gumTooth pixDuct tapeBlack glueGBMF hammerScrew gun --bad battery (see above)
Reply:Originally Posted by BurpeeLearn proper downhand technique. Uphand sucks. I only did it when it was the(spec'd) rules. It takes a while to get it right but I've passed pipe tests with it.
Reply:Nice ! Why ? It's not that hard ? I mean I haven't had one inspected since.....ahem....1974?... but I still do it the same way ! You jut have to get used to shoving the rod. It's real easy with MIG(what aint) but you have to play with the wire speed a lot. It'd be cool to rig a speed pedal to a mig for that !Bubble gumTooth pixDuct tapeBlack glueGBMF hammerScrew gun --bad battery (see above)
Reply:Originally Posted by BurpeeWhy ?
Reply:Originally Posted by CEPWell generally there is this little thing call a WPS. In the line item "Weld Progression" it will say Uphill.Pre 1980s everything in my little world was 7018, post 1980 was pretty much all Innershield, with some 7018. Most structural welding inspectors will have a hissy fit if you run down hill.
Reply:Originally Posted by SquirmyPugCep, don't you know 7018 can't be used anymore, just like 6010?
Reply:Originally Posted by SquirmyPugSome say 6013 can be used downhill, I've never tried that so I don't know.
Reply:Originally Posted by CEPWell generally there is this little thing call a WPS. In the line item "Weld Progression" it will say Uphill.Pre 1980s everything in my little world was 7018, post 1980 was pretty much all Innershield, with some 7018. Most structural welding inspectors will have a hissy fit if you run down hill.
Reply:I remember that earthquake very well! It stood the structural welding world on it's ear for sometime. Pretty much all you see now on the west coast is T-8 wire.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:I'm currently working in the Alberta Oil sands as an iron worker welder. When I arrived on site, I had a meeting with QC (welding inspector) and had to sign a contract. In that agreement It stated all 3G welds are to be done "up" only. All my welds are inspected and a down 3G weld will get me fired. We are working strictly with 7018 stick.
Reply:Originally Posted by SquirmyPugCep, don't you know 7018 can't be used anymore, just like 6010? What is with everyone wanting to argue about up-hill or down-hill lately? Most welding is up-hill (tig-most stick-fluxcore-most mig). The only time for down-hill would be XX10 rods pipelining or thin sheet metal with mig/ XX10-1 rods. Some say 6013 can be used downhill, I've never tried that so I don't know.
Reply:Originally Posted by DeepPenetrationI heard that 6013 has replaced 7018?  Why is that?
Reply:Originally Posted by CEPWho ever told you that needs a swift kick in the nuts!
Reply:Originally Posted by DeepPenetrationI heard that 6013 has replaced 7018?  Why is that?  What's the difference?  I would think that the 70 series rods would be preferred because of the higher tensile strength.  What's the difference between the two?
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