MIG (Metal Inert Gas) is a wire feed welder. TIG (Tungsten Inert Gas) has a
tungsten electrode and new metal has to be added by putting a separate
(handheld) electrode into the arc. I think MIG is more apropriate for body
work because you can fill up holes and cracks. You dont have to be so
accurate when you are replacing a part of the body, because you can fill up
the inaccuracies. TIG is usually used to weld stainless steel.
More expensive welders of both types has high frequency modules built in.
This makes it easier to weld, because the arc is started easier . With both
type of welders it is important that the to pieces to bo weld together, are
cleaned of both rust and paint.
Torfinn Sornes
Norway
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