Join Date: Dec 1999
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Re: Welder - Another question
welders can have a dc or Ac output, all the welders we are talking about here are AC powered 110/220, 220 just having more ability to weld thicker materials.
the ac welders are swapping polarity 60 times per second, this causes the arc to jump around, its also not real safe to use while lying on the ground or working outside in damp conditions
Dc is a smooth arc at the actual weld puddle, less jumping around
also ,much safer to work with out of doors or in damp conditions
the $210 lincoln buzzbox is AC only 225 amps output ( plenty of power for most home use)
the $350 lincoln buzzbox has ac/dc output capability
every MIG that Ive seen is DC, also the term MIG indicates it is a wirefeeding machine with a Gas sheild
a "wirefeed" welder can be flux cored wire , no gas sheild, better for out of doors or more portable, but not quite as high of quality of weld with the gas sheld and more splatter generated.
the smaller migs/wirefeeds are very useful for sheetmetal and smaller non structural stuff, but if you plan to do any .250 plate or thicker you really need more power than can be attained from a 110volt outlet.
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