heat input @ a/c

[dyn88]

here is a tech question for you dynasty owners! If the a/c balance is set at 99% EN does that require less pedal to weld the same base as with the balance set at 50% EN. I have read and do understand the wave shaping capabilities of the dynasty. I also understand that en places more heat into the base and ep places more heat into the electrode. I have more experience with sine wave machines and a few square wave, syncro250 and pt375 and I notice very little temperature change in the base when changing the balance. maybe I answered my own question but would like the input of the people on this board.

[paulrbrown]

dyn88, yes to the less pedal needed, with more EN, you are putting more heat into the material, you are also able to use smaller electrodes, and have them last longer....by increasing the Hertz, from 60hz to a higher amount, the arc cone becomes more focused, which adds even more heat to the area being welded, hope this helps, Paul

[Bendaman]

I was just wondering, did you notice a larger cleaning band around the weld,
on the higher setting?

[dyn88]

I would think that by changing the freq and arc cone that you are changing the actual size of the legs of the bead. So if your welding a fillet on 1/4 plate aluminum and need 1/4 inch legs are you decreasing the penetration when you increase weld diameter? A majority of the work I do ends up at a local helicopter maufacturer and they are picky about weld integrity.