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How To Weld "Around Corners"

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发表于 2021-9-1 00:36:23 | 显示全部楼层 |阅读模式
Did ya ever get a job to weld..but you cant get the tungestion "where it has to be" because of "stuff" in the way?..heres the way around it...first sharpen a piece of tungestion real sharp..ok heres the trickey partinsert the tungestion into the torch like you are about to weld steel..crank the amps up to about 250..D.C. straight..hold the tungestion over a piece of copper and hit the pedal..wait for the tungestion to turn red hot..stop the power and push the tungestion into the copper and give a little push to the torch..it should end up like a "dentist pick"adjust the point in the torch to where the arc should be aimed at and weld away!i had to do this today because the tube heads i was welding only had about 1/2" of clearance between the already installed bushing in the piece and the inside wall..there was no way a "normal" torch set up would have gotten in there..try that next time you have little if any room to work.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:what about the gas shield? i mean i know there would be some gas flow still, but it wouldnt be directed parallel with the arc anymore. did you just turn up the flow a little to compensate? dont take that wrong, i know that you know what you are doing, i'm just curious for my own knowledge.
Reply:MacGyver welding now your talking my lingo ChuckASME Pressure Vessel welder
Reply:Originally Posted by mynameisaricwhat about the gas shield? i mean i know there would be some gas flow still, but it wouldnt be directed parallel with the arc anymore. did you just turn up the flow a little to compensate? dont take that wrong, i know that you know what you are doing, i'm just curious for my own knowledge.
Reply:Zap, not to nit pic your weld, but since you provided the photo, and in the interest of learning, it looks cold, convex, not wet in at the toes, like each dab of filler is not well melted to the previous, maybe cold lap along the bottom toe.  It looks like the material was thick enough to take more heat.It is difficult to judge a photo cause we don't really know what the joint looked like before welding, and maybe I'm not seeing what I think I am.Any comments, I take it from your custom tungsten, that this was a difficult joint to get into.
Reply:It is difficult to judge a photo cause we don't really know what the joint looked like before welding, and maybe I'm not seeing what I think I am.Any comments, I take it from your custom tungsten, that this was a difficult joint to get into.
Reply:Pictures can be misleading but that looks like plenty of shelf to make the weld with a normal TIG torch set up. How about a real small cup? #4? ...ever hear of "walking the cup"? What a great looking bead. Had to do it in a nuclear power plant on 1" stainless socket welds because QC looks for a snake skin type weld appearance with no acceptions. 20 years of TIG welding I've never dabbed the TIG filler rod on a continuous weld bead.A pic with a tape measure on the weldment before welding may clear up things to the level of difficulty.Tennessee Squire Association
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