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I was doing a job today and could not get quite what I wanted so I kept messing with the machine. No joy there, so I tried a 1/8 tungsten shaped like a D. It worked OK, but the arc was wide for me. I went back to 3/32 red and black. The sharpened tip or shaped like a D would look odd after a short time of welding. New sharp tungsten and every t hing was fine for a little while. SO I put the arcmaster on 65% + wave, almose as good ad switching polarity on DC. I then had a clean scrap lf aluminum. I held the tungsten about 1/2" away and floored the pedal 185+ amps. It made a huge ball. I tried welding with it but the arc wanted to jump around too much. SO I did it again watching the tungsten a Lot closer. 60 to 90 amps were all I needed to form a nice round ball almost as big around as the tungsten. I then welded it with that. It worked well. Just a shiny ball when I stopped welding unless I dunked it. I just balled another one. I had to watch really close and hold the tungsten good and square to the plate or the ball would form off to the side.I did it with black which I think is 1% or 1.5% Lanthinated or how ever you spell it.I did it with some red too. The ball held up perfect.I reset the wave balance to 30% + where I usually have it and welded away.Try itDavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:I quit making balled tungsten in the early 80's. Just grind it to a dull point and start welding. It will make it's own ball to the exact size necessary for your set up all on it's own.Two turn tables and a microphone.
Reply:I just put the tungsten in right out of the box and just start playing with the amps til it balls up! Works great. I only use green on aluminium!AEAD 200LE, Lincoln precision tig 185, Millermatic 251, Spectrum 625 extreme, Victor torch , Smithy 1220LTD. and Do all C-4 band saw , Always adding.
Reply:I use red and sharpen it to a point to do inside corner welds. Then I just use a dull point to do butt welds. Not sure if that is the best practice thought
Reply:Poopie??? U gotta b sh*ttin me! Sometimes I ball tungsten in dc reverse over a block of copper.
Reply:Isn't 30% a mostly cleaning waveform putting most of the heat into the tungsten? I run the opposite - 70-75% to get just enough cleaning action and maximum heat into the joint.- "If ya can't be handsome, ya may as well be handy!" HTP Invertig 201Lincoln Power Mig 255CLincoln SP125+Thermal Dynamics Cutmaster 38
Reply:Originally Posted by David RI reset the wave balance to 30% + where I usually have it and welded away.David
Reply:Like Pangea said balling the tungsten isn't that big a deal especially if your weld current is up there.......170+ If your concerned about keeping it tight use DC - with lab grade helium.......With soot brushed off....Last edited by B_C; 12-23-2011 at 01:58 PM. Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock
Reply:Originally Posted by David RI was doing a job today and could not get quite what I wanted so I kept messing with the machine. No joy there, so I tried a 1/8 tungsten shaped like a D. It worked OK, but the arc was wide for me. I went back to 3/32 red and black. The sharpened tip or shaped like a D would look odd after a short time of welding. New sharp tungsten and every t hing was fine for a little while. SO I put the arcmaster on 65% + wave, almose as good ad switching polarity on DC. I then had a clean scrap lf aluminum. I held the tungsten about 1/2" away and floored the pedal 185+ amps. It made a huge ball. I tried welding with it but the arc wanted to jump around too much. SO I did it again watching the tungsten a Lot closer. 60 to 90 amps were all I needed to form a nice round ball almost as big around as the tungsten. I then welded it with that. It worked well. Just a shiny ball when I stopped welding unless I dunked it. I just balled another one. I had to watch really close and hold the tungsten good and square to the plate or the ball would form off to the side.I did it with black which I think is 1% or 1.5% Lanthinated or how ever you spell it.I did it with some red too. The ball held up perfect.I reset the wave balance to 30% + where I usually have it and welded away.Try itDavid
Reply:Does anyone ball tungsten anymore?
Reply:Originally Posted by burnit2Why Ball 2% ( red ) tungsten? Or which Arc Master do you have? Does anyone ball tungsten anymore?
Reply:Originally Posted by PangeaI quit making balled tungsten in the early 80's. Just grind it to a dull point and start welding. It will make it's own ball to the exact size necessary for your set up all on it's own.
Reply:Originally Posted by GarauldIsn't 30% a mostly cleaning waveform putting most of the heat into the tungsten? I run the opposite - 70-75% to get just enough cleaning action and maximum heat into the joint.
Reply:The blunted point would quickly spit tungsten into the work creating an even more unstable arc than the balled version. I also had similar results with ceriated.
Reply:Looks like we are different. I did another aluminum job today. I tried it again balled and sharpened for mild steel. I welded 16 feet of 1/8" aluminum lap weld. If I form the tip by balling it, it stays that way until I dunk it. If i use it sharp, the point degrades before I have used one stick of filler. The ball stays clean and shiny.75 to 120 amps, red 3/32 90 hertz 35% cleaning 20cfh yadda yadda DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:I grind them to a point, and "let it happen capn' "Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:"If I form the tip by balling it, it stays that way until I dunk it"Why are you dunking your tungsten?Two turn tables and a microphone.
Reply:Originally Posted by Pangea"If I form the tip by balling it, it stays that way until I dunk it"Why are you dunking your tungsten?
Reply:or does not drink coffee, and is still in their 20's...I dunk like its an oreo.miller syncrowave 250hobart handler 140home made 400 amp engine driven in progress...
Reply:Originally Posted by David R Its what I do. Shaky hands, holding it too close, surface tesnion from the aluminum filler.... It happens. Anybody that says they don't is full of it.David
Reply:When someone says they're purposely "balling" a red tungsten, that tells me all I need to know about their "tig welding experience".Sounds to me like we've got a lot of "experts" on how to do things wrong.PS. Mark my words. In a week or two there will be a newbie posting up how to "ball a red tungsten" for use on an inverter.Last edited by SundownIII; 12-28-2011 at 01:59 PM.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:Its been over a week since I dunked a tung.
Reply:Originally Posted by VPTIts been over a week since I dunked a tung.
Reply:Originally Posted by David R Its what I do. Shaky hands, holding it too close, surface tesnion from the aluminum filler.... It happens. Anybody that says they don't is full of it.David
Reply:Get comfy is the clue..You can't tig with your torch hand out in "Mid Air"..It just don't work.Originally Posted by zapsterGet comfy is the clue..You can't tig with your torch hand out in "Mid Air"..It just don't work.....zap!
Reply:Originally Posted by PangeaYou can't weld freehand? How long have you been doing this?
Reply:Originally Posted by zapsterSure I can but I would prefer not to whenever possible..Sometimes there is no avoiding it.But if I can rig up some sort of hand rest then I do it.(It's really not all that difficult)Tigging since 1990.....zap!
Reply:Originally Posted by zapsterSnipYou can't tig with your torch hand out in "Mid Air"..It just don't work.....zap!
Reply:Sorry about the hijack..Please continue with the original problem.....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:Originally Posted by VinnieWhen are your holidays over??? "lol" V |
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发表于 2021-8-31 23:19:54