A tubular or wire cored electrode is used for both MIG and MAG welding. These can be purchased online at places like AGA.com.
Yes it can. I use flux core wire because there is no need for gas with flux wire.
Both use electrical current to melt the base metal and the filler metal. Both could be considered ARC welding. Most welding is done with an electrode (stick) and as the electrode becomes consumed the weldor has to stop and replace it with a new one. MIG welding uses a spool of wire and can be run for hours on end. MIG is usually easier to learn.
No, the wire will overheat.
Check it with a voltmeter or with a voltage detector.
Aluminum is one example of a metal that cannot be MIG welded and must be TIG welded. The limitation of MIG is usually the heat it can produce versus thickness of the material. One quarter-inch thickness is usually about as thick as you can weld with either MIG or flux-core wire feed welders. Anything else will require the heat energy available with a stick welder.
Manual Metal Arc Welding(MMAW) Also GTAW (TIG) and GMAW (MIG) The MIG wire carries electric current so it is considered the electrode. TIG the Tungsten is considered an electrode.
TIG Tungstun Inert Gas & MIG Metal Inert Gas.
It depends on what you're welding and what kind of weld you need. For an extremely strong weld where you don't want to transfer as much heat to the surrounding areas, tig is the way to go. Tig has the option of melting only the source material (together), so if it is better than no material is added, then tig is the better process. If you want a small, uniform weld, then tig is also superior. Mig is wire-feed and so adds material to the pieces being welded. So it is better for filling areas or adding superior strength. If the material surrounding the weld can take the heat or doesn't matter if it is deformed or discolored, then mig welding is the way to go. A good discussion of Tig and Mig welding is here http://www.ridgecrest.ca.us/~biesiade/weld.htm.
as big as a mig in tig
Gas, arc, mig and tig.
No Unless you have a newer model welder that is CC & CV, and then they do not do aluminum unless you get into the high end inverter models. Wire welding uses the CV (constant Voltage) and tig is CC (constant current)
can weld aluminium with a mig or tig welder
The term flux means to clean. Not all welding processes use a flux. Stick welding electrodes contain fluxing agents. MIG hard wire doesn't but flux-cored MIG wire does. TIG does not as the rods are bare. Most brazing applications require flux. Gas welding usually doesn't except for certain metals.
mig, oxy-acetelene, arc,
Arc mig and tig
It depends on what you are welding. If you are doing welding on mild steel go with MIG welding; if it is aluminum or stainless steel then use TIG welding. TIG welding gives a nice looking finish. If you just want to get a decent look, then MIG is preferable and easy.