Quote:
Originally Posted by Scott Hightower
You didn't mention the Argon Mix ratio you are using. In general I use 85/15 or 80/20 for spray arc in lighter gauges. If welding heavier gauges I lean towards 75/25.
For wire dia. use .023 on your sheet metal parts and .030 to .035 for structural work like roll cages and frames.
Scott
Fab Manager
Welders360 |
Scott --
Not sure what gauges you're referring to.
MIG spray arc is generally considered for 0.25" and larger material... you'd never spray arc sheet metal. That process would be referred to as short circuit. Short circuit welding - which is what any of us use around here - is where you get the "frying bacon" sound. The fill material forms a short circuit and then falls into the pool and then repeats the process about 100 times a second.
Any car stuff that we're doing around here - would use 75/25 (Co2/argon) gas. Stainless steel would use a tri mix gas.