TIG, AC High Feq question (maybe stupid)

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I used a transformer machine for the first time yesterday. When operating in AC does a transformer machine sound different than an inverter machine?Is the sound a function of the balance and or frequency setting?For years I worked at a place with a Miller Dynasty, and when I used it for aluminum it made a "faster" higher pitched noise. I never messed with any of the AC settings when I worked there.This one yesterday was very low. And I didnt like the way the puddle acted.
Reply:Originally Posted by BurnitI used a transformer machine for the first time yesterday. When operating in AC does a transformer machine sound different than an inverter machine?
Reply:Yes.  A xformer has tha 60 hz buzz.  The inverters have adjustable freq so the buzz could be higher or lower depending on the freq setting.  It could also be the same if you run 60 hz.DennisThermal Arc 185-TSWMillermatic Challenger 172VictorO/AAtlas Craftsman 12 by 24 LatheEsab PCM-875Wholesalem Tool Mill-Drill
Reply:Basic Transformer Vs Inverter.  New technology Vs Old School.  JohnSMAW,GMAW,FCAW,GTAW,SAW,PAC/PAW/OFCand Shielding Gases.  There all here. :
Reply:I just took another weld test, just got back. A transformer machine, same low buzz. Also got to use a Miller XR push pull Aluminum MIG gun. That was awesome, I told them I had never MIG welded aluminum, they said just give it a shot. It went really well, Aluminum MIG is really cool, I thought it would be alot harder.I got the job! They make really big radiators and intercoolers, There was one on the table I took my test at that was 10' square.
Reply:Originally Posted by BurnitI used a transformer machine for the first time yesterday. When operating in AC does a transformer machine sound different than an inverter machine?Is the sound a function of the balance and or frequency setting?For years I worked at a place with a Miller Dynasty, and when I used it for aluminum it made a "faster" higher pitched noise. I never messed with any of the AC settings when I worked there.This one yesterday was very low. And I didnt like the way the puddle acted.
Reply:Originally Posted by BurnitI just took another weld test, just got back. A transformer machine, same low buzz. Also got to use a Miller XR push pull Aluminum MIG gun. That was awesome, I told them I had never MIG welded aluminum, they said just give it a shot. It went really well, Aluminum MIG is really cool, I thought it would be alot harder.I got the job! They make really big radiators and intercoolers, There was one on the table I took my test at that was 10' square.
Reply:Originally Posted by Rojodiablo Try sharp tungsten, and quick start up on the amps.
Reply:Originally Posted by BurnitI wanted to try but......The guy who gave me the test, will also be training me to replace him. He has gotta be at least 70. he gave me a piece of copper to ball the pure tungsten with and I took one look at the guy and thought "Dont argue with this dude, do it his way!"  That guy is going to teach me alot, Im stoked. He is old but not too old school, He got me using the aluminum MIG in no time flat.They said I can take pictures, I cant wait to show you guys these intercoolers,the core is like 8 inches thick, they are huge!
Reply:They also sound different since the old ones are a sine wave output and the inverters can produce different waveforms along with different frequencies.Oh, Billy.....you're still a quack.
Reply:I learned to tig aluminum on a transformer.  I learned again when I bought an inverter.  Both do a great job.  A transformer always has 50% wave balance.  A lot of power is wasted there and more is wasted to heat.  Sounds like a great job.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by turboblownThey also sound different since the old ones are a sine wave output and the inverters can produce different waveforms along with different frequencies.Oh, Billy.....you're still a quack.
Reply:And as for the difference in the welders, I have felt very at ease with transformer machines, because I had less settings to goof myself up with. Just kind of plug in and go.And then, after so much work...... you have it in your hand, and you look over to your side...... and the runner has run off. Leaving you holding the prize, wondering when the runner will return.
Reply:With the intense heat of DC beam you have to pre and post heat the puddle before and after adding wire. If you do not it will crack. Because you can heat aluminum too quickly with Inverter machines. FYI You can not TIG weld aluminum with DC. Steel Thunder Welding LLC. St. Thomas VI USAMM350PBOBCAT 3MAXSTAR 150 STH375 EXTREME PLASMA6.5 HP COMPRESORDEWALT 18, 24, AND 36 VOLTO/A TORCH SETAND SO MUCH MORE I DONT REMEMBERALL IN MY 2005 2500HD EXTENDED CAB L/B
Reply:Originally Posted by offrdfun73With the intense heat of DC beam you have to pre and post heat the puddle before and after adding wire. If you do not it will crack. Because you can heat aluminum too quickly with Inverter machines. FYI You can not TIG weld aluminum with DC.
Reply:I should lighten up at times...but he's still a quack.
Reply:Originally Posted by turboblownI should lighten up at times...but he's still a quack.
Reply:Originally Posted by offrdfun73FYI You can not TIG weld aluminum with DC.