trying to weld aluminum cans with HTP 221 invertig ac/dc.

[MHagins]

I really have no clue what I'm doing , but here is my question. What parameters should I be using with this welder for aluminum cans? I don't know how to set up this welder. The instructions are vague. i looked up jody at Tips and Tricks but nothing works for this welder.

 

[RNeumann]

Are you able to do razor blades yet? Are you doing the edge of the can at the top or bottom?

You will prob have the best luck DCEP. The tungsten will obviously take all the heat but that’s the idea. If you can’t get the aluminum clean enough this will obviously be an issue. Once you can get tacks and weld it then you may be able to play with AC at like 90/10 (or whatever that machine’s max EP is).

Check out this jig and note he blows holes when he is starting out....

TIG Welding Pop Cans!! - YouTube

 

[Ritothebull]

I really have no clue what I'm doing , but here is my question. What parameters should I be using with this welder for aluminum cans? I don't know how to set up this welder. The instructions are vague. i looked up jody at Tips and Tricks but nothing works for this welder.[/QUOTE

Now thats funny.

 

[Welding Junkie]

If you want to know how to use your new HTP invertig 221 let me know. i know this machine inside and out. Put your machine in AC / balance 75% freq 70 / Independence AC put EN at 60% / 10pps / do you know how to get into the independent ac settings? When you change your EN to 60 youll get more cleaning and less penetration. The Invertig 221 is an amazing machine. There is not once welder in its class that has this feature. Along with the ARC dynamic of the 221 its unstoppable.

Depress the 鉄ET AC button (4) once, release, then press again
and hold. As shown in Fig 13, the balance light (4B) will rapidly
flash and the amps display will flash 摘n- and the machine will
beep once. Release the 鉄ET AC button, and while the display
is flashing, the electrode negative amperage will be displayed
in the é„*MPS digital display in % of peak current. Use the
encoder (1) to decrease the electrode negative amperage from
10% to 90% of the peak amperage in 1 % increments while the
display is flashing.
Whenever the AC amperage has been independently adjusted,
the é„*C ON light will flash. To exit independent AC amperage
adjustment, hold the 鉄ET AC button in until the balance light
goes out and the AC ON light glows continuously.

 

[yomax4]

I've done a lot of cans at shows. Always like to use an .040 tungsten with 1 or 2 pulses per second. You need to scrub the weld area with a scotchbrite pad to get the coating and oxidization off. Foot control is best because the hand amptrol adjustment is pretty coarse. It will take a few burned out cans to get good at it. Good Luck !!