Join Date: Jun 2009
Location: Saipan (!)
Mad Max is offline
Re: welder options, what would u pick
You can run straight Argon no problem.
It's only a shielding gas that's inert (Totally non reactive). It is used exclusively for TIG welding aluminum, stainless, magnesium, etc.
CO2 is considered a reactive gas since it has 2 components - Oxygen and carbon.
It is a lot less expensive than straight Argon.
Welding suppliers will not mix gasses in a straight Argon tank. You would have to exchange the tank for a mixed shielding gas.
I know of guys who use straight CO2 for crap MIG welding. It is inexpensive and works. You don't get as good a weld though.
One issue people don't realize with 110 MIG welders... they run extension chords for machine power and don't realize that you have a voltage drop (although not huge) by resistance through the extension cord. Weld with an extension chord for a while and feel how warm it becomes...
A 110 MIG has a much lower duty cycle than most 220 units. You lessen that by using a chord, and the weld suffers slightly...
You can weld with a torch and get pretty much the same results, only with more heat transfer.
I have welded vehicle body panels with a Smith Bantam torch (very fine 00 torch tip), using a wet rag to cool the surface after a stretch of weld. It shrinks the metal and makes a super fine weld.
1)'82 S10, 383, 700R4, Shorty
2) '85 S10, 3.4, 700R4 4x4 stretch cab (Redneck)
3) '90 S10 2.5, 5 speed shorty
4) '91 S10, Built 3.4, 5 speed shorty (Voodoo)
5) '92 S10, 2.5, 5 speed shorty, (Barbie)
6) '92 S10, 2.5 5 speed, Shorty
7) 1979 LUV, Buick 3.8 V6, TH 350 Shorty.