First a little background, I started out in the HVAC trade doing copper line brazing and then moved into a new maintenance job. It quickly became apparent that we needed to develop some welding skills in the team and I was chosen by default. We have a Fabricator 181 and I've been mostly MIG welding on mild steel up to 1/4 inch thick. Now I've run into a problem. We need to fabricate some machine parts that we can't buy any more. Weight, corrosion, and strength are all important and I'm leaning towards aluminum as a good compromise. The problem is the Fabricator 181 only does DC TIG and that isn't going to cut it for aluminum welding.
This leaves me with several options:
1. Stick welding, either with the Fabricator or the Thunderbolt 250
2. Aluminum MIG with a spool gun.
3. Replace the liner on the MIG gun and use it
4. Buy another MIG gun and dedicate it to Aluminum.
5. Some Oxy/Acetylene or MAP gas process I haven't thought of yet.
6. Some crazy TIG setup with the Thunderbolt like I'm Mad Max.
7. Sneak an AC TIG machine past the accountant.
The parts I'm going to have to build probably won't exceed 3/16 of an inch thick and it'll be just some basic T joints less than 6 inches long. Part isn't visible once it's installed so it can be ugly, as long as it's strong.
