If you're asking about the gas setting the correct term is flow, not pressure. In nonwindy situations a setting of 15 CFM (cubic feet per minute) should be adequate. Increase as needed for working in a draft. Very windy conditions may mean you will not be able to use this process.
metal inert gas (MIG) welding
Mig
Flux core is a type of MIG welding.... please kind of know what your talking about before you ask a question.... Gas assisted solid mig wire welding is neater and cleaner. There are two types of flux core mig welding that you are talking about. 1. Gasless flux core mig wire 2. Shielded flux cored welding wire, uses a shielding gas as well. Most likely you are talking about the gasless mig wire. look here for more info: www.learn-how-to-weld.com/gasless-mig-wire.html
When MIG welding STEEL a mixture of Argon -- CO2 is used. 75% - 25%
metal inert gas (MIG) welding
DCEP for standard Mig. DCEN for Flux Core
MIG stands for metal inert gas. It is a non-standard term for gas metal arc welding (GMAW) and flux cored arc welding (FCAW) according to the American Welding Society (AWS). It is simply Metal Inert Gas.
MIG welding with flux core wire offers advantages such as higher welding speed, better penetration, and increased portability compared to other welding methods.
A tubular or wire cored electrode is used for both MIG and MAG welding. These can be purchased online at places like AGA.com.
Wire feed speed in MIG welding is calculated by multiplying the welding current by the wire feed rate. This formula helps determine the speed at which the welding wire is fed into the weld pool during the welding process.
Gas Metal Arc Welding Most folks call it MIG
That all depends on what type of arc welding you are doing, Mig, Tig or MMA (stick) It also depends on what standard you are working at, what you are welding, where you are welding and the level of danger you are in i.e. are you in a warzone, underwater, high up etc etc. A typical basic mig welder the does tables and chairs etc can look to be earning about 12,500 to 15,000 pounds a year. A fully coded welder working on high pressure steam lines etc can earn upwards of 52,000 pounds a year. Then you can factor in danger money, are you working away from home, overtime etc and get even greater amounts. I had my Asmi 9 which is one step below coding and was earning about 26,000 a year welding sonic cleaners, furnaces and wire winding machinery. It all comes down to your skill.