Pure tungsten with a Dynasty

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Has anyoneTried a pure tungsten with a Dynasty Machine?  Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock
Reply:I have as I still have quite a bit from my transformer days and it welded ok.I think ceriated holds up the best.I have used some of the hybrid tungsten and it was awesome just haven't had the need to buy any as I have plenty of tungsten. Come to think of it  the brown zirconiated welded better than green pure.
Reply:Originally Posted by B_CHas anyoneTried a pure tungsten with a Dynasty Machine?
Reply:Shouldn't run pure on a inverted machine.
Reply:Originally Posted by aDreamSoRealShouldn't run pure on a inverted machine.
Reply:Never tried it, gave up on pure long ago.Weld like a "WELDOR", not a wel-"DERR" MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li  ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.
Reply:Hello B_C, there is nothing that says that you can't use pure tungsten on your Dynasty 350. I believe it is more of why would you need or want to. Now to some of the specifics of my last statement: Since pure tungsten balls on it's own once you start upping the amperage it has a broad arc focus. This was very beneficial for cleaning on aluminum and when we were pretty much limited to transformer/rectifier machines that was a good thing. With the advent of inverter technology and the additional benefits of variable hertz machines and AC current balance the need for the balling has pretty much been replaced by the ability to focus the arc and vary the AC balance. Lower hertz/wider focus and shallower penetration, higher hertz/narrower focus deeper penetration. This newer technology has also enabled us to utilize smaller tungsten diameters to weld on thicker materials. Tungsten erosion has also been minimized when compared to that of transformer/rectifier machines and since this erosion can also be associated with tungsten "spitting" there is less chance of weld bead contamination. One last bit, pure tungsten is not capable of carrying the same current for a given diameter as other types of tungstens for a given application and this probably the main reason why you would be better off with other tungsten selections.  There are many more specific details that could describe the benefits of "NEW" versus "OLD" in this scenario. You have the machine to determine those on your own. Good luck and best regards, Allanaevald
Reply:Originally Posted by aDreamSoRealShouldn't run pure on a inverted machine.
Reply:Just curious WHY..... I like the idea of narrowing up the arc with the new Tungsten'sand understand where that would be beneficial.  Most of my welds on my aluminum products are FLAT straight forward welds and I really don't need the advantages of the above mentioned tungsten's  Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock
Reply:BC, it's easy enough to try, so you might as well chuck up some zirconiated or pure tungsten on that inverter in AC mode and pay attention to the arc starting characteristics in particular, to see if it's something you can live with.It seems to me that the fact that inverters use HF only for starting (and need to switch out of it and into normal, high current AC welding mode before you're going to actually start welding), while transformers use HF constantly in AC mode (for starting as well as in high current welding mode, not having these different modes for AC), are responsible for the difference in recommended / preferred tungstens for each type of machine for AC welding.Inverters then benefit more from a tungsten that allows them to get switched out of starting mode and into high current welding mode easier and quickly, while transformers without these distinct AC operation modes don't have the problems transitioning, and so don't benefit as much from an easy-starting tungsten (lanthanated/ceriated/thoriated).
Reply:Originally Posted by B_CJust curious WHY..... I like the idea of narrowing up the arc with the new Tungsten'sand understand where that would be beneficial.  Most of my welds on my aluminum products are FLAT straight forward welds and I really don't need the advantages of the above mentioned tungsten's
Reply:Originally Posted by Broccoli1maybe this article will help answerhttp://www.millerwelds.com/resources...rticles30.html
Reply:ive got an invertec v205 an i use pure when welding aluminum and have been for the last 5 years on it with no issues...... it seems to weld better them thoriated or ceriated imo. havent tried any of the hybrids but i her they are good.mike
Reply:I used it in my D200.  It just balls up quickly.  The arc gets really wide.   That's about it.TA Arcmaster 300CM3XMT 304S22P12 suitcase feederX-Treme 12VSOptima pulserTA161SMaxstar 150STLHypertherm PM45OP setupStihl 020AVP, 039, 066 Magnum
Reply:Last time i used pure (green) tungsten was working for a patio furniture manufacture because they were cheap in fact everything about them was cheap except what you paid for the furniture  especially the pay...didn't work there long...The tig version of a mig sweatshop the tungsten balled real quick on those old millers and if you contaminated the tungsten you just burned it off on a corner of the bench and kept welding.was only there a few weeks before finding another jobBacked my CATMA over your CARMA oops clusmy me  What would SATAN do ?? Miller Trailblazer 302 AirPakMiller Digital Elite  Optrel Welding HatArcair K4000Suitcase 12RC / 12 VSHypertherm PM-45Rage 3 sawRusty old Truck