tig aluminum

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Lets say you need 50 amps to weld this piece of aluminum, you have a foot pedal. Should you ramp it up to a higher level? It seems like it takes a lot to get the puddle started, and after you do you can cut back some. Should you just wait till it finally melts, or run it up hot and then cut back. thanks.
Reply:Run it up hot, then cut back.  There ya go.  Thats what the pedals all about.Various GrindersVictor Journeyman torch200cf Acet. 250cf oxygenLincoln 175 plus/alpha2 gunLincoln v205t tigLincoln 350mpEsab 650 plasmaWhen you can get up in the morning, Its a good day.Live each day like its your last.
Reply:thanks
Reply:is there a trick to starting the weld. Once it gets going its smooth sailing, but starting the weld and doing short sections, I guess that it then comes down to experience.
Reply:No trick, just lots of practice. You want just the right amount of heat to keep the puddle. Too much heat,you can burn through. Not enough heat and the puddle will solidify.John -  fabricator extraordinaire, car nut!-  bleeding Miller blue! http://www.weldfabzone.com