Ahp Alphatig 200x

[arcflash]

If you turn the pedal backwards and put your foot on the stationary part and rock your foot forward it will feel better. What is your post flow set at? I assume you are using straight argon.

 

[roadie33]

Just tried the settings you suggested and the crater on the right is what happened. Also got the cup so hot it cracked.


The 2nd pic is with AC balance at 50 and 120 Amps. Still no puddle. Just black pitting. Cleaned both with new SS brush, wiped with Acetone before welding. It acts like it's welding on DC not AC.

 

[roadie33]

The 2nd pic is with AC balance at 50 and 120 Amps. Still no puddle. Just black pitting. Cleaned both with new SS brush, wiped with Acetone before welding. It acts like it's welding on DC not AC.[/QUOTE]

 

[arcflash]

Are you getting gas flow out of the cup? It looks as though something is leaking and sucking air through the system BAD. If you are using the trigger switch you have no control over the amps other than the panel control. How much stick out are you running on your tungsten?

 

[roadie33]

I hear the gas and feel it coming out of the cup. No problem welding steel on DC. Welds nice on steel. I really need this to be able to do Alum.

Here is one on steel.

 

[roadie33]

1/4" to 3/8" stick out. Pure Argon.
How would I check to make sure enough gas is getting to the cup?
starting to get frustrated.
Any amperage over 150 gets the Tungsten glowing hot and the cup starts to glow also. Already had 2 cups crack because of heat.

 

[roadie33]

Would it still weld steel if there was a gas leak and letting in O2 with the Argon?

 

[DSaul]

I'm not sure what problems it might cause, but you should have the switch in the 4T mode for using the trigger switch.

 

[roadie33]

It doesn't matter where the switch is 2T or 4T, or whether I use the foot pedal or hand switch, it always looks the same.
I will try to contact AHP Tech support today and see what they say.

 

[roadie33]

Got busy at work and didn't get a chance to call tech support today. I'll try tomorrow.
Took the cover off welder to see if the gas line had any breaks or rub marks on it. It looked good and each end was tight. plugged it in and stepped on pedal, I could feel the gas coming out the cup with no problem.
Tried another test weld and it looked just as bad. Hissed and sputtered, would never get a puddle started.
Whenever I tried to put some filler rod (4043) in, it would really start sputtering and almost like push the molten rod out of the way. The rod never was fully melted either and I would hold the arc right over it and it just sputtered and crackled, and sometimes blow it off the Aluminum piece.

Here is the pic of latest try. What is all of the white looking stuff all over everything? Even on the filler rod.








These were the settings I used. With foot pedal, 100 Amps, 120 Freq, and gas at 15 cfh.