Mig wire

[baz-r]

just a little pointer to all this wire discussion

in the mig welding prosess the arc is formed between the work piece and the wire melting both the wire and piece, wire feed and the welders "inductence" create an open and closing circuit
the ballance of thease two create the fizz sound of a good weld (hig freq of open and closing of circuit)
a quality welder actualy ajusts the wire feed to the welding voltage and cheaper ones use the welding voltage to feed the wire through basic circuitry
wire should realy be ballanced to the work required and rarely ever thicker than what your welding

0.6 should only be used for very light work (car body panels) and 0.8 for med/light work (thin section box,tube and angle) 1.0 is good for around 3mm plate and so on

try reading this
http://www.migatronic.com/media/magwelding.pdf
its about the best basic info i used to give clients when tring to sort out thair welding setups well wort keeping for future ref (from migatronic)
(mag just means active gas, inert gas only realy applys to unmixed gasses eg.argon)

i hope everyone finds it intersting and helpful