Aluminum Welding: Adjusting AC Frequency on the Miller Dynasty® for Improved TIG Welding Results

Learn how to adjust AC frequency to gain greater arc puddle control when TIG welding aluminum on Miller Maxstar or Dynasty TIG welders . For more information on TIG welding hints and tips, visit http://www.millerwelds.com/resources/improving-your-skills/tig/

Category:

Howto & Style

Tags:

• Miller
• TIG Welding
• TIG Welders
• Miller TIG Welders
• AC Frequency
• Aluminum
• Aluminum welding
• Aluminum TIG Welding
• weld performance
• quality
• GTAW

[1Rectified]

Eyebrows? Sorry. Awesome Video.

[jonr5000]

It's hard to tell how much better the control was due to the sharper tip, not the higher frequency.

[jarodmarch123]

yea he definately waxes the eyebrows lol

[jarodmarch123]

the reason the tip stayed sharp was because of the increased frequency, if you run the typical 60 hz the dcen and dcep switch slower, which heat up the tungsten more and cause it to ball more, the high the frequency the faster the change in dcen to dcep and the tungsten stays cooler and allows it to stay sharp, which also focuses the arc better.

[jsskangas]

Hello

If you look closely you find that bigest reason why arc in this wideo was wide is that tungten tip in lower frequency was lot bigger than in hi frequency welding.

If you have sharp tungten tip you get narrow acr and if you have bigger tip you get wider arc.

Higer frequecy has only small effect in this.

[1997LT1Camaro]

I am not a welder, but just learning tig on my own. I think the difference in high frequency is the ability to place the arc and it not divert due to pulse spacing. The slower the pulse the more chance for arc wandering in a corner. Does the frequency affect the tungsten tip? Does hi frequency help retain the point, or is that a ac balance adjustment thing only?

[BarneySaysHi]

Love the close ups, gives me a nice insight on how it works!

[FedoraBird]

cool

[k1ngOfMaul]

@jonr5000 i dont use a sharp tip with ac, and you dont need the elctrode sticking out of the pink shrowed

[d3javoodoo]

Why are the two different examples of low hertz welding shown with different tung. Calibration....? One was rounded like pure tung, & the other sharp... Like2% LAN.