Question about Miller SYNCROWAVE 250 DX TIG RUNNER WELDER 951117
You want to set the lever to DCEN and set the amperage at perhaps 40-45 amps (this will be the max when the pedal is fully depressed). I suppose we need to know what gas you are using but I would suggest using Argon. Sneak into the melting point - too few amps is not going to kill the job, so gradually depress the pedal until you find that magic combination of heat input and speed.
It would also be very helpful to know what tungsten you are using and at what diameter. I would suggest using 1.5% Lanthium or Ceriated Tungsten with a diameter of at least 0.50" but not more than maybe 0.100" ground correctly to a point. You can use a larger diameter but it might just get in the way of seeing. I use 1/8" for almost everything.
For thinner metal and for less experienced weldors, it's helpful to get the weld started away from an edge. Edges melt faster so less heat input is needed. It might take a little practice.
One weldor could weld 19 gage metal with a lot more amps than another so a lot of it is up to the experience of the torch holder.
Posted on Mar 28, 2011
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Posted on Jan 02, 2017
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