SlowChild3
15+ Year Contributor
- 545
- 9
- Aug 19, 2005
-
Dayton,
Ohio
^^^ Looks great. Was that cap welded in a positioner?
Ya we turn everything.
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^^^ Looks great. Was that cap welded in a positioner?
To setup the TIG: I would start with 3/32 tungsten green, set the machine to DC RP turn the amp range to 100amps, use a copper block turn up your post flow and have the torch straight up and down. Feed the amps in slow and ball up the end of the tungsten, not a huge ball but just bigger in diameter then the tungsten. Then turn to you parts to be welded. Set the machine to AC if it has balance control set it twards the cleaning side not a ton of penetration needed, then turn on high frequency, and a Max amps of 140ish. I would use 3/32 4043 filler rod ans about 20-25cfh argon flow. I also use a diffuser nozzle and a wider opening cup.
As for torch angle its a fillet weld but I put more heat into the thicker material and with aluminum the easiest way to get penetration is to use more or bigger diameter rod. As you weld when you put in filler rod before you move the torch forward watch the puddle and you will see it "sink" in, then its time to advance.