[TheForge] MIG Welders

[Grover.Richardson at gtri.gatech.edu]

I can burn through sheet metal almost as easy with most any welder.  

What I do is start the weld on the thick part (either where the sheet is
doubled up or on the thicker piece that the sheet is being welded to)
and then periodically move the arc over to the sheet. If it's an edge to
edge sheet weld I try to stitch.

Or sometimes I will back the sheet up with a piece of steel to suck the
heat.  Got to be careful to not get it hot enough to melt into the
backup piece though.  

Dan Tull says I'm not a welder, I'm a stick burner<G>. 

~>-----Original Message-----
~>From: theforge-bounces at mailman.qth.net 
~>[mailto:theforge-bounces at mailman.qth.net] On Behalf Of 
~>Washington, Aubrey O.
~>Sent: Tuesday, May 22, 2007 12:07 PM
~>To: Sponsored by ABANA
~>Subject: RE: [TheForge] MIG Welders
~>
~>Bill,
~> 
~>I expect that most of my MIG welding will be in sheet metal 
~>up to 14 ga.  I have an AC stick welder I can use for 
~>anything heavier than the MIG will manage.  I'm not great 
~>with the stick welder.  My welds are ugly and I use more rod 
~>than a better welder would, but stuff generally stays stuck 
~>together.  My biggest problem has been burning though sheet 
~>metal with the stick welder, so I'm hoping the MIG will help 
~>with that.
~> 
~>Thanks to everyone for all your advice.  It seems like either 
~>the Lincoln Power MIG 140C or the Millermatic 140 would be 
~>good.  I gather I should avoid the current Hobart.
~> 
~>Aubrey