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Miller Electric Manufacturing Electric Syncrowave 250 DX TIG 907194032 Welder Questions & Answers
Welding aluminum
TIG weding is next to brain surgery as far as CLEAN goes.
You must get your AL clean, either by 1. Clean with a NEW Stainless Steel brush or 2. by using a chemical from the welding house that is made just for that.
Your cup must be clean and your gas flowing at the right amount,no leaks in o-rings or hoses.
Hold your cup more vertical and keep your filler rod in the gas shield always,no in and out movement.
In short you must get everything perfect to get quality Heliarc Al welds.
Good luck, HowardRoark
I have a syncrowave 250, it is about 12 years old.
Jon,
I would like to suggest to you that you post this question on the millerwelds forum. There are some very experienced tech guys there that can help you much better. Go to millerwelds.com and select the forums under the resources tab. You will be surprised. Hope you can get it running again.
Ryan
Can't set up syncrowave 351 to tig weld
Set the "arc balance" control between 40-50, also. You need to be up around 200-220 amps too. Make sure you're using 3/32 tungsten (green, red) and running about 25-30 cfh on your argon. Ball that end on the tungsten.
Gas keeps running after you
Hi:
The normal set up on the 250 syncrowave will allow you to control your pre and post flow of gas. If the post flow is set up to more than 2 seconds that's the problem. If it is set on zero, then you have a leaky solenoid valve. Check your owners manual for troubleshooting anf repair.
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