Tig Aluminum

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Other day wanted to fill in a small Aluminum face ...Around 70 amps .... using foot pedal... Argon ... 3/32 Tungsten red ... sharpened....ac highI started the arc , then next thing i know its burning my tungsten away and leaving a bunch of white stuff. I couldn't even get the arc started. I kept messing up the tungsten bad... i tried like 5 times. Whats going on? I can't figure it out.
Reply:P/M sent.....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:First guess; did you hear the argon flow start before the arc blew up your tungsten? Although, I've never done this. 9-11-2001......We Will Never ForgetRetired desk jockey. Hobby weldor with a little training. Craftsman O/A---Flat, Vert, Ovhd, Horz. Miller Syncrowave 250
Reply:sounds like a common loss of shielding. or no shielding. --Gol'
Reply:Yea thats what i though , i did check to see if the gas was coming out.but i couldn't tell , not sure what it should sound like. I did put my hand there to see if there was anything , but i couldn't feel it if was got a nice shock out of it though.Any other ways of testing if the gas is coming out?
Reply:if the gauges on your bottle have the floating ball it should be up if its not then no gas.6G zirconium 702 GTAW 2" xxheavy6G P.E.D. carbon steel GTAW 2" xxheavy3G titanium Gr. 2 - Gr. 7 GTAW up to 3/4" 3G 316L stainless GTAW up to 1" 3G carbon steel GTAW up to 1" 3G Hastalloy GTAW up to 3/4"1G tantalum GTAW up to .060"
Reply:Originally Posted by welder155if the gauges on your bottle have the floating ball it should be up if its not then no gas.
Reply:Put the torch next to your ear and press the pedal once and you should hear the argon flow...Build a Barstool Racer at BarFlyRacers.com!
Reply:Hold your torch away from anything. Hit the pedal. It should hisssss, just like loosening the valve core on an aired up tire. 9-11-2001......We Will Never ForgetRetired desk jockey. Hobby weldor with a little training. Craftsman O/A---Flat, Vert, Ovhd, Horz. Miller Syncrowave 250
Reply:Originally Posted by malichPut the torch next to your ear and press the pedal once and you should hear the argon flow...
Reply:Originally Posted by malichPut the torch next to your ear and press the pedal once and you should hear the argon flow...
Reply:hit the pedal. THEN put it up to your ear.You should be able to hear the postflow of the argon
Reply:I figured it out!!!Sounds stupid , but the really heavy welding table wheel was on the gas hose! I didn't see it before because its in the corner , not my fault i didn't move the table. I finally found that was the problem after disconnecting all the hoses. Now the argon comes out , i can feel it. Welded a alum block i needed to fix... no white stuff , i had a bit of contamination i guess from the tungsten and filler.
Reply:Thanks for letting us know. It's real aggitating to follow a thread and never get feedback. 9-11-2001......We Will Never ForgetRetired desk jockey. Hobby weldor with a little training. Craftsman O/A---Flat, Vert, Ovhd, Horz. Miller Syncrowave 250
Reply:Originally Posted by Craig in DenverThanks for letting us know. It's real aggitating to follow a thread and never get feedback.