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Aluminum Intake Welding

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Old Feb 10, 2007 | 10:00 PM
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Default Aluminum Intake Welding

How much amperage do you need out of a TIG welder to weld injector bungs onto an aluminum intake manifold? With a preheat and possibly someone keeping a torch over the area to keep things warm. I've been looking at the Miller Dynasty 200 DX for it's portability, but it maxes out at 200 amps.
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Old Feb 11, 2007 | 09:21 PM
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You can do it with 200 amps no problem. Especially if you preheat it at all. I've done it on both a syncrowave 180 and my 200 DX.
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Old Feb 23, 2007 | 02:45 PM
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You don't need someone to run a torch over it. Just preheat and you are fine.

+1 with FirstGen on the 180. I love mine.
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Old Feb 23, 2007 | 04:29 PM
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Using 50/50 Argon/Helium would help, too.
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Old Feb 23, 2007 | 09:43 PM
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Originally Posted by wkdivr
Using 50/50 Argon/Helium would help, too.
this is the best mix gas in the world. Be carefull as this gas will make a puddle quick and will also crack if you dont really take it slow on your exit.I have welded 1" thick with a miller sincrowave 250 with no preheat. This gas is more expensive than argon but will make awesome welds. 4043 filler is a soft rod and will help. A dynasty 200 is, from what I have heard, one of the best small tigs on the market. It is a squarewave which is the latest technology.
to Miller
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