Mig/Mag welder

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I know what a mig welder is, but I see a lot of the cheaper welders advertised as a mig/mag welder. What does this mean?
Reply:Somebody got all bent over the fact that CO2 is not entirely inert, so they call it active.City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:M.I.G. = Metal Inert Gas - Argon or one of the Noble GasesM.A.G. = Metal Active Gas - C02, Oxygen etcGases are classified as either inert or active.  Saying that a gas "is not entirely inert" just muddles up the situation.Later,Jason
Reply:Oh come on Since we are getting all picky here, the process is more accurately called GMAW or Gas Metal Arc Welding
Reply:Thanks all for making that clear. Years ago I went to school for welding and we learned all of the proper terms of welding and MAG was not one of them so I knew something funny was going on.
Reply:I wasn't getting picky (Sorry Danny) just giving the O.P. the answer to his question.I myself do not care for using the terms Mig and Tig etc, but Good Luck getting anyone to use GMAW, GTAW, FCAW, or SMAW.... let alone use them properly.Yeah... It's a pet peeve of mine.I won't even answer a question from my apprentice when he calls a weld "vertical up"... He wants to learn to be a professional welder, so I require that he use the proper terminology .  There is a bit of a difference between a 3G and a 3F.Anyways, Have a Good Evening.Later,Jason
Reply:No worries mate. You shoulda heard my tig instructor when I called it "the gas pedal"!  I thought he blew a head gasket... City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny