Question........ My question since I am new to tig welding and Tig aluminum welding, is can I use carbon dioxide as an inert gas.???? or do I need Argon only....how about argon/c02 mix?
Answer....... Use only pure argon for tig welding or you will cuss....a lot!!. When you get some seat time and get really proficient you may find a mix of 50/50 argon/helium to be useful for welding aluminum 1/8" and thicker. I know I use it all the time and it really makes a big difference when tig welding thicker aluminum. Dont even try using Argon/CO2 or Nitrogen, or Straight CO2. Click here to learn the top 10 noob mistakes
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