Folx,
was wondering what pros think of lift-arc feature, as opposed to HF - is it as good/convenient ?
Also, assuming one doesn't have HF going, will AC squarewave self-maintain the arc when TIGin' ?
LiftArc and arc maintenance when in squarewave mode
Apr 21, 2006
1 Replies
LOL. I was about to ask more or less the same question:
Apart from RF-interference, what motivations are there to use lift-arc as opposed to RF?
Personally, my torch tends to stick to the workpiece when using lift-arc. RF should not be necessary with inverters in AC (square-wave) mode. The thing I like about lift-arc is that I can very accurately position the torch on the workpiece, lower the helmet and strike the arc. But it often sticks to the workpiece.
With RF, I need a fraction of a second to realize exactly where the arc is struck and which direction to move. In several applications, this .5-1 second was too long... (or maybe I'm welding things beyond the machines' & my capability...)
Peter.
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