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TIG welding round tubing

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发表于 2021-8-31 22:09:12 | 显示全部楼层 |阅读模式
First attempt at round tubing.  1 inch OD about 14 gauge.  Ran 110 amps DC or less, 3/32 tungsten, #8 cup, 17 cf/hr argon.  Has anybody got tips or techniques for the best positions and techniques to work your way around this type of weld?
Reply:First get comfy and prop on that pipe with a tig finger or somthing. And practice on a bunch of them. Try putting a weave on it. Looks pretty good. Inside of that pipe looks pretty gross clean it to.
Reply:the hell was used to cut that thing? one of those  pipe cutters with the little rotating wheel?    Looks good from here.  Tubing sucks in general unless you invest a few billion hours to hone the technique. 1st on WeldingWeb to have a scrolling sig! HTP Invertig 400HTP Invertig 221HTP ProPulse 300HTP ProPulse 200 x2HTP ProPulse 220MTSHTP Inverarc 200TLP HTP Microcut 875SC
Reply:Just try to get as comfortable as possible.  You also want to quarter the weld, weld it in 4 sections makes it easier if you are jus. Speed will come in timet learning.  Start at the bottom first. Make sure you adjust your heat accordingly as the top will be much hotter than where you started.  I weld pipe for a living and it's no different you want to quarter your welds to keep the joint nice and straight, that way you don't have a dog leg in it.  Just remember low and so when starting out and always remember your in control of that puddle. Just remember speed will come in time.  And for now just keep running nice tight stringers overlapping each one by 50%.  Once you have mastered that you can start walking the cup!  Good luck man.
Reply:Give this a shot: drop down to 1/16th tungsten, drop amps to around 90, use 1/16th filler, keep your arc length short (around 1/16 of an inch), start dipping your filler just when you get a wet look on the non-coped pipe.  Your weld is much larger than it needs to be for the material, and the large tungsten and higher amps are forcing you to try to move faster than is comfortable and dip more filler than necessary to cool the puddle.  That at least is my assessment of what is going wrong and what will help having just spent a lot of time learning to do the same type of joint myself.--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:How's the progress?--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:I'm with your advice wintermute! Could even go smaller than 1/16 filler. Also, I'm no guru and pretty new to welding gauge tube but seriously..if you want over-sized fillets and lots of distortion go ahead and weave that **** lol. You can kick back and admire your bowed t joints.
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