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I am new to tig welding and I am wrestling with what is the difference between the older sign wave machines ( the 1000 pound loncoln, miller, linde machines) and the newer square wave machines like the 200 amp miller dynasty amd the 185 amp lincoln. I am under the impression that the added features on the newer machines mainly concern welding Aluminum (AC) and the use in DC mode is essentially unchanged.. Is this correct or am I way off baseThanksarchie =) =) =)
Reply:I think you are correct. The changes for aluminum are awesome. Its not the features, its the square wave. DC is essencially the same, except it is also produced by the inverter. Smaller , lighter and more efficient.DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:The main diffrence between sign wave and square wave is that the polarity goes from negative to postive instantly rather than having the graduall curve of the sine wave. I belive that you dont need the HF to continue the arc. I could be totally wrong though! Heres a pic of a square wave and a sine wave.
Reply:With the sine wave, the voltage crosses 0 and the arc goes out, so you NEED hi freq. Square wave doen not need any arc stabilizer. It still needs a spark to start.DavidReal world weldin. When I grow up I want to be a tig weldor.
Reply:I dont care what kind of tig machine it is.. The operator has alot to do with it and the results......zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Originally Posted by zapsterI dont care what kind of tig machine it is.. The operator has alot to do with it and the results......zap!
Reply:I was told that the main reason that square wave is superior is for controllability. When using a sine wave the voltage/power is always building up to max or tapering off to minimum. However this occurs in a non linear fashion. When using a square wave the voltage/power is on or off. In other words the voltage/power goes from o - 100% of the setting instantly. Yielding better controllability especially when pulseing the current. Washman
Reply:Originally Posted by WashmanI was told that the main reason that square wave is superior is for controllability. When using a sine wave the voltage/power is always building up to max or tapering off to minimum. However this occurs in a non linear fashion. When using a square wave the voltage/power is on or off. In other words the voltage/power goes from o - 100% of the setting instantly. Yielding better controllability especially when pulseing the current. Washman
Reply:Thanks a bunch guys. I guess the Linde machine i am getting will work just fine for what i intend to do with it. (mostly steel) Both stick and Tig.Happy Huntingarchie =) =) =)Lincoln AC-225Lincoln sp100 mig (with gas)Linde UCC305 TIGVarious torches Plus Lathe & Mill |
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发表于 2021-9-1 00:10:20