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Tool Talk Discussion Forum

Re: looking for some opinions.

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Author  [Modern View]

03-16-2013 03:46:51

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I forget the details of the project now. Not to long after buying my Dynasty 300 I had to weld some 3/8-inch thick aluminum. I used some 1/8-inch Lanthanated, (blue) tungsten. Pushing 300-amps the Lanthanated tungsten didn't last very long before the tip started splintering. Kind of aggravating to have to keep sharpening the tungsten! Later I bought 5/32-inch tungsten, collect, and collet body, never used it. Then I read where people use Ceriated tungsten for aluminum welding too. 1/8-inch Ceriated tungsten can take 300-amps longer than the Lanthanated.

I like the results better if I keep the AC balance between 60 and 70, never go over 70! I play more with the frequency, for thin material the lower the frequency, the thicker material the higher the frequency.

torch guy, one thing I find very helpful when high amp Tig welding aluminum, is a pair of those Ove-Gloves for cooking. :wink:

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Stick welding

03-16-2013 11:36:40

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 Re: looking for some opinions. in reply to Puddles, 03-16-2013 03:46:51  
There are lots of adjustments you can make on the latest TIG welders. I've heard of lanthated tungstens splintering before. Being it's a very good machine, I think it's probably something simple to get smoother ripples. One of the customers has a Dynasty 700 and got a procedure that calls for 3/16" tungstens! Nobody in the city stocked them and they had to be special ordered.

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