Here is the video of me welding some of the same tubing. Believe it or not fixing that slight argon leak solved the problem completely. Thank you everyone for all of your help.

https://youtu.be/8RqoCQ_5Qco

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I might be able to do that later this afternoon when my wife comes home

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It does display the used amperage but its hard for me to look at it while watching what im doing with the torch

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Its not blowing holes in the metal. Mostly it is just affecting the timing of my beads and is annoying at most.

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I could not tell you if it does it in DC because i have not yet welded anything in DC with it. When i started noticing this i was running beads on some .065" wall 6061 tubing, i only set the torch up on the 1/2" aluminum to demonstrate on video what it was doing. The 3rd video shows more o...

I noticed that if i shut the bottle off and let it sit i lose about 1 scfm on the flow gauge every 3-4 minutes so i decided to check the hoses for leaks and i found a small one at the back of the machine where the hose attaches. I really had to crank down on the nut to stop the leak. I dont have a c...

I called the place i bought it from and he told me i can open the case and inspect, but not to mess with anything. I did just that. Once opened this thing is encased with plexiglass and you cant get to anything without dismantling the whole thing. I didnt see anything wrong so i closed it back up. I...

This is a brand new machine, so i have been hesitant on opening the cover. I did check the torch cable both cold and hot and continuity was excellent. Zero resistance from the dins connector all the way to the tungsten tip.

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Ok. So this morning i put my ohm meter on my cables. Cold i got full continuity. After getting everything hot for a few minutes i found that the ground clamp specifically gains about 0.5 amps of resistance. I also changed out the arctime tungsten to a brand new 1/16 Ceriated and the gas lens to the ...

Also stepped up to a number 8 cup with the gas lens. Im also assuming that the tungsten grind is fine because its ground the same way i used to grind them for the Diversion and never had this issue with that machine.

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So i just tried again with the amperage set to 70, freq set to 120 and balance set to 70. Argon set to 15 cfh. Fresh grind on a 3/32 Arctime tungsten ground on what i believe is 80 grit dedicated grinding wheel. Arc length was less than 1/8" as shown in picture next to a piece of 1/8" alum...

The arc length started out around 1/8", but due to the pipe melting and cratering it looks larger in the picture. The problem does amplify when i pull the arc out longer. I have also tried a 1/16 tungsten and the lowering the argon flow and it still does the same thing. Amps were set to 50 in t...

This is what the tungsten looked like after this video.

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It happens with the ground directly on the part or on the table. I was able to capture what it was doing and uploaded the video to YouTube. https://youtu.be/v_JdCeC-jV8

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Hi, im new to the forum. My name is Dave and i am an automotive enthusiast. I work on all types of cars as "hobby" work. I currently run a Lincoln 140 mig and just bought a Lincoln Square Wave 200 tig. I do a lot of aluminum tubing for intercoolers and intake work. I also do a good amount ...

Hi, my name is Dave and i am new to the forum. I just sold my old Miller Diversion 165 and bought the new Lincoln Square Wave 200. Im having a slight issue when welding aluminum. Im getting a popping when welding aluminum. It almost seems like there is an argon issue, but i did not have this problem...