Weaving a 3g on 3/4" all the way out. (Pics)

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Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Flawless pass gentleman!!Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Nice ! I don't like to carry that much metal and prefer stringers. That's a heck of a weave though.
Reply:You are gonna give people a heart attack weaving that wide.  Everybody has been brainwashed for so long into thinking stringers are stronger than weaves, I guess that bend test shows a weave is plenty strong enough. I always liked a nice weave, and push the envelope all I can. I hate those stupid little stringers.I was on a job once, no bead wider than 3/8ths allowed, and they were dead serious about it. I'm talking terminated serious. We had to fill up 90 inch pipe with 3/32 7018.One thing, the wider you get, turn your heat up accordingly. It'll smooth out really nice.
Reply:Heck of a weave is right ... Awesome job Thanks for sharing!Located In SE OklahomaLincoln Mig 135Hobart Ironman 230 Mig5x10 CNC Table with DTHC & FTHypertherm PM65 on the tableMiller Bobcatwww.caneyagequipment.com
Reply:Nice weld! I prefer weaves too, altho that one is wider than I would normally go.Yeah, I know, but it'll be ok!Lincoln Square wave 255Miller Vintage mig30a spoolgunThermal Dynamics Pacmaster 100xl plasmaSmith mc torchEllis 1600 band saw
Reply:Nice job and nice looking weave!!
Reply:Great work!  Thanks for posting.
Reply:Very nice - from start to finish.
Reply:Looks good to me I like to weave too - my body is moving around anyway so I might as well weave it.Plus, it's about the easiest way for me to play the light around enough for me to see better (no, I'm not old, I don't care what my kid said....lol)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:looks real good to me. now do it hanging by your tail on a shaky scaffold.i.u.o.e. # 15queens, ny and sunny fla
Reply:Originally Posted by docwelderlooks real good to me. now do it hanging by your tail on a shaky scaffold.
Reply:Originally Posted by AKweldshopI've done a lot of weaves hanging off a ladder in freezing temps.....
Reply:Originally Posted by docwelderno way i want to rain on your parade but those are the pics i want to see.
Reply:Originally Posted by AKweldshopNo pics, it was a rush job.It was when I built that grader blade beef rack...
Reply:Hello.  I was a welder, and now a weld supervisor at the largest nuclear facility in the world.  It has always been a beef with me that we are not allowed to weave more the 3/4", and on nuc class systems no wider then 3/8"......religiously.  Yet on some of the systems we do maintance on, welds that were done before I was born ( I'm 39) have the "big Weave"!  I can tell you that 99% of my work is fixing failed components ie valves, fittings.  I have seen a few failed welds on fillets, but not on butt welds.Interprovincial RedSeal Welder and SteamfitterMiller Maxstar STL 110vMiller Blue Star DX 185Lincoln 180
Reply:BTW.......nice weave....lol.......Interprovincial RedSeal Welder and SteamfitterMiller Maxstar STL 110vMiller Blue Star DX 185Lincoln 180
Reply:Some interesting thoughts on weaves."Any day above ground is a good day"http://www.farmersamm.com/
Reply:I never really thought about it from that perspective, but HAZ is a very important factor. Sent from my dumb smartphoneTeach Ag Mech - Mike At Home:Lincoln Electric AC225Miller Challenger 172Gas AxeWork:eclectic bunch of 90's vintage blue boxes
Reply:Originally Posted by MinnesotaDave.......I like to weave too - my body is moving around anyway so I might as well weave it........
Reply:always seem to me that a weave is gonna trap zero slag where stringers are just askin for it..course if you fill em up good ,no slag..Originally Posted by weldbeadalways seem to me that a weave is gonna trap zero slag where stringers are just askin for it..course if you fill em up good ,no slag..
Reply:I can pass  3G bends with weave or stringer.Learn both, and be able to to do both, on demand to meet specs and code.Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Originally Posted by AKweldshopI can pass  3G bends with weave or stringer.Learn both, and be able to to do both, on demand to meet specs and code.
Reply:Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Originally Posted by BD1Nice ! I don't like to carry that much metal and prefer stringers. That's a heck of a weave though.
Reply:That weave!Lincoln Pro Mig 180Lincoln Pro Core 125Hypertherm 30xpPorter Cable Drill PressAcra 7x12 bandsaw48" sheet metal brakeCrap load of other tools, working on metal now.
Reply:Originally Posted by KMcCurdyThat weave!
Reply:[QUOTE=AKweldshoIf it passes a bend test, how can someone say a big weave is a poor quality weak weld?~John[/QUOTE]Didn't mean to imply that it was inferior, just saying that I probly would have done the last layer in 2 passes. Just a personal preference. I thought yours was fine, and a passed test is a passed test. Heck, without reading up on it I wouldn't even know what the specs on that test are. It's been 15 years since I needed a cert and took a test.Yeah, I know, but it'll be ok!Lincoln Square wave 255Miller Vintage mig30a spoolgunThermal Dynamics Pacmaster 100xl plasmaSmith mc torchEllis 1600 band saw
Reply:Originally Posted by welderjDidn't mean to imply that it was inferior, just saying that I probly would have done the last layer in 2 passes. Just a personal preference. I thought yours was fine, and a passed test is a passed test. Heck, without reading up on it I wouldn't even know what the specs on that test are. It's been 15 years since I needed a cert and took a test.
Reply:Vertical, horzontal, overhead or flat weaves. Like them all. Work great when you have the right heat. Nice job.ChrisAuction Addict
Reply:I much prefer the weave over stringers. I'll agree there's much less chance of slag inclusions Sent from my dumb smartphoneTeach Ag Mech - Mike At Home:Lincoln Electric AC225Miller Challenger 172Gas AxeWork:eclectic bunch of 90's vintage blue boxes
Reply:Originally Posted by AKweldshopIf it passes a bend test, how can someone say a big weave is a poor quality weak weld?
Reply:John, a good indicator of heat input is the color of the surrounding steel, and the color of the bead when the slag is removed.  You see a blue color, or bluish rainbows, and you've put a LOT of heat into the area.  This is to be avoided.  Go have a cigarette, and let it cool (or smoke a joint, bein' in Alaska n' all)Interpass temps are generally specified in some applications, and shouldn't be exceeded.Here's a weld I made a few years back, it got WAY HOT.  I'd say that this area has probably been compromised.  Might last forever, might snap under tension, or impact.  It's a tossup.I believe I saw some blueing in some of your beads, not sure......  But it's something to be aware of.  This isn't strictly a function of a weave, it can also occur when laying stringers without enough time allowed between welds for cooling."Any day above ground is a good day"http://www.farmersamm.com/
Reply:Originally Posted by taz00John.First of all nice welds.Second, as I wrote in the other forum a bend test only gives information on discontinuities on the weld and ductility.It does not give any information on strength, toughness, corrosion resistance etc. Additional tests are performed during the procedure qualification to prove that the procedure produces adequate welds.Then the welder only has to prove he can produce acceptable welds using an already qualified procedure. Bend tests alone do not give enough information on the properties of a weld.The reason wide weaves are generally avoided is the high heat input.High heat input in mild carbon steels mostly affects toughness and the only way to test this is by performing charpy impact testing.Some other reasons are increased distortion and in some cases cracking.In other steels such as quenched and tempered it reduces strength, in duplex steels corrosion resistance etc.There are also times when sufficiently high heat input is a requirement.I totally agree that a welder should be able to do both depending on the situation.The fact that you pulled this of means that you are a good welder but gives no information on the properties of the weld.
Reply:John, heat input and maximum interpass are 2 different things.It's getting late here and I am going off to bed but will try to explain the differences tomorrow.You are correct that the blue tint is not a sign of defect.
Reply:Originally Posted by taz00John, heat input and maximum interpass are 2 different things.It's getting late here and I am going off to bed but will try to explain the differences tomorrow.You are correct that the blue tint is not a sign of defect.
Reply:Heat input along with interpass temperature are the 2 most important factors that affect cooling time of the weld and in particular t8/5.T8/5 is the time it takes for the weld to cool down from 800C to 500C and is really critical.Too fast you can have bainite and martensite forming (among other phases) increasing hardness and brittleness.Too slow only ferrite and perlite will form leading to a reduced hardness and toughness.It also depends on whether you have 2-dimensional heat flow vs 3-dimensional heat flow etc.I could go on but I think I will bore most of you guys to death. If however you are interested in diving deeper into the metallurgical side of things let me know and I can send you a few things to read.
Reply:Originally Posted by taz00Heat input along with interpass temperature are the 2 most important factors that affect cooling time of the weld and in particular t8/5.T8/5 is the time it takes for the weld to cool down from 800C to 500C and is really critical.Too fast you can have bainite and martensite forming (among other phases) increasing hardness and brittleness.Too slow only ferrite and perlite will form leading to a reduced hardness and toughness.It also depends on whether you have 2-dimensional heat flow vs 3-dimensional heat flow etc.I could go on but I think I will bore most of you guys to death. If however you are interested in diving deeper into the metallurgical side of things let me know and I can send you a few things to read.
Reply:Originally Posted by farmersammNot having a chemistry background....................................
Reply:I doubt he's applying for a welding job at NASA. Weave on, Brother!