Well this is my second go at TIG welding. This time I practiced a little before starting.
Again I used my PA140ST in TIG mode. I was using a 1/16 2% thoriated with a #5 cap. Amperage was 45-50. Filler rod was a 1/16 ER70S2. The metal is a little less than 1/16.
My poor old table saw was on it's last leg and liked to break dance after some idiot decided to sit on it one day (I'll be nice and not say who... but if I ever see my brick mason on the side of the road with a flat... I'll blow the horn and wave....) The actual bottom of the table saw is made out of plastic and is now cracked. This allows the metal legs to "flop" around. Not too safe... So rather than throwing it away and buying another I decided to tack the legs in hops that that would stabilize it enough to last for a few more years.
This time I cleaned the legs using a cut off disk (I know not the correct tool.... but it worked). I just did small spots as I only planned on putting small spot welds. With the table sitting upside down I straitened all the legs and leveled everything then I put small tacks to hold it together. I then set the table on it's side so I could work on a horizontal surface. Everything seemed to go smoothly. I had the argon set at 10CFM at first and then bumped it to around 12-13CFM. The welds might not look the best but they are getting better (at least I think). If nothing else I should be a little safer when using my poor old table saw.
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