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I need help setting up my tig welder
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<blockquote data-quote="Beerj" data-source="post: 647126" data-attributes="member: 10035"><p>Well, your max amperage is going to be close to your metal thickness. For example, 1/8" is .125 so you'd run 125 amps. That's at least a good starting point but you could also just crank it up all the way and just use what you need via the pedal. AC balance is just like it shows on the knob, either more cleaning or more penetration. I run around 35% for clean aluminum. You may want more if there's any oxidation but it's better to just clean it off first anyway. Post flow is how long the gas keeps flowing after you terminate the arc. Very little is needed for steel and even less for aluminum since it solidifies so much faster. But you'll want 7 to 10 seconds for stainless. I run about 18 cfh flow while welding for everything and almost always run a #7 cup. You may need more flow if you use a big gas lense. 3/32 1.5% lanthanated tungsten with 1/16 thru 1/8" filler. Also, with aluminum, keep the tungsten stickout to a minimum. If the filler starts to ball up before you get it in the puddle then you're likely too far out. That's about all I've learned in the past 8 months or however long it's been since I got my tig.</p></blockquote><p></p>
[QUOTE="Beerj, post: 647126, member: 10035"] Well, your max amperage is going to be close to your metal thickness. For example, 1/8" is .125 so you'd run 125 amps. That's at least a good starting point but you could also just crank it up all the way and just use what you need via the pedal. AC balance is just like it shows on the knob, either more cleaning or more penetration. I run around 35% for clean aluminum. You may want more if there's any oxidation but it's better to just clean it off first anyway. Post flow is how long the gas keeps flowing after you terminate the arc. Very little is needed for steel and even less for aluminum since it solidifies so much faster. But you'll want 7 to 10 seconds for stainless. I run about 18 cfh flow while welding for everything and almost always run a #7 cup. You may need more flow if you use a big gas lense. 3/32 1.5% lanthanated tungsten with 1/16 thru 1/8" filler. Also, with aluminum, keep the tungsten stickout to a minimum. If the filler starts to ball up before you get it in the puddle then you're likely too far out. That's about all I've learned in the past 8 months or however long it's been since I got my tig. [/QUOTE]
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