Comparison of MIG and TIG Welding
https://www.fairlawntool.com/blog/mig-vs-tig-welding/#comment-409
OSE Summary
TIG can do all metals. May be relevant to nickel in nickel iron batteries. MIG is easier and faster. Conclusion: both belong in the Global Village Construction Set.
Pro TIG
- Electrode is not used up if you take care of it
- TIG allows for precision, high performance work, such as butt-welding pipe for a heat exchanger or welding thin metal
- TIG may be used without filler wire/rod
- TIG can be used on any metal - aluminum, steel, stainless, bronze, copper, nickel. For brass, TIG burns the zinc out [1]
- Doesn't spark and spatter so is cleaner than MIG
Con
- Slower - metal melting is simply slower, as it works through plasma rather than short circuit. Thus, more expensive to operate (more electricity), and big welds take a long time
- More difficult - 3 elements - electrode, filler if used, foot pedal to control heat
Pro MIG
- General purpose, heavy duty welder
- Easy, fast, brute force farmer welds
- Much cleaner than stick welding
Con MIG
- Less reliable for precision work, and can break from crystallization