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Posted by on June 11, 2007, 11:21 pm
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I will most likely be purchasing a MIG welder soon and I have a question
about amperage. I currently own a Lincon Squarewave 175, and I have
recently found that 175 amps of TIG power is not equal to 175 amps os
stick power. I am working on a project now where I am trying to weld
3/16" plate, lots of it. In TIG mode 3/16" is about all its good for. In
stick mode I can blow right trrough a 3/16" plate very easily. Also if I
try to weld more than a 4" bead at 150 amps I can no longer hold onto
the gas cooled torch.
I would like to find a MIG welder that will practically weld 1/4" steel
all day long. Flux cored would also be a nice option (I hate buying
gas). So how big a MIG welder do I need, any recomendations.
John Roncallo
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Posted by Surfin' on June 11, 2007, 11:47 pm
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>I will most likely be purchasing a MIG welder soon and I have a question
>about amperage. I currently own a Lincon Squarewave 175, and I have
>recently found that 175 amps of TIG power is not equal to 175 amps os stick
>power. I am working on a project now where I am trying to weld 3/16" plate,
>lots of it. In TIG mode 3/16" is about all its good for. In stick mode I
>can blow right trrough a 3/16" plate very easily. Also if I try to weld
>more than a 4" bead at 150 amps I can no longer hold onto the gas cooled
>torch.
>
> I would like to find a MIG welder that will practically weld 1/4" steel
> all day long. Flux cored would also be a nice option (I hate buying gas).
> So how big a MIG welder do I need, any recomendations.
>
> John Roncallo
A 200 amp machine or better. A machine with less power could weld 1/4" steel
but be restricted by duty cycle.
Millermatic 210 or comparable light industrial welder should handle the job
easily.
JFD
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Posted by surftom on June 12, 2007, 10:57 am
Please log in for more thread options On Jun 11, 11:21 pm, "j<removespamblock>roncallo"
> I will most likely be purchasing a MIG welder soon and I have a question
> about amperage. I currently own a Lincon Squarewave 175, and I have
> recently found that 175 amps of TIG power is not equal to 175 amps os
> stick power. I am working on a project now where I am trying to weld
> 3/16" plate, lots of it. In TIG mode 3/16" is about all its good for. In
> stick mode I can blow right trrough a 3/16" plate very easily. Also if I
> try to weld more than a 4" bead at 150 amps I can no longer hold onto
> the gas cooled torch.
>
> I would like to find a MIG welder that will practically weld 1/4" steel
> all day long. Flux cored would also be a nice option (I hate buying
> gas). So how big a MIG welder do I need, any recomendations.
>
> John Roncallo
Hi John,
I too have the Lincoln Squarewave TIG 175 and have complemented it
with the MIG 180. It's rated up to 1/2" on a single pass but that's
optimistic I think. 3/16 or 1/4 is no problem but I have only done a
full day of welding (3/16) once - no tripping!
If this is for production use you may want to go a little bigger, but
I wanted a welder I could still carry around. The PowerMig 180 fit the
bill nicely - 220v but still portable.
You can check out the post in this group on "Welder Cart v 4.0" to see
what I've been up to or just surf over to <http://www.228mill.com/
tinker>
tom
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Posted by Leo Lichtman on June 12, 2007, 11:44 am
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"john wrote: (clip) Flux cored would also be a nice option (I hate buying
gas). (clip)
^^^^^^^^^^^^^^^^
I don't have enough information to run the numbers, but you may not save.
A spool of flux core contains less metal than solid, and costs several times
as much.
Of course, there are other reasons for using flux core: 1.) the polarity
puts more heat into the weld. 2.) You don't have to drag a tank with you if
you are moving around. 3.) No problem with breezes if you're working
outdoors.
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>about amperage. I currently own a Lincon Squarewave 175, and I have
>recently found that 175 amps of TIG power is not equal to 175 amps os stick
>power. I am working on a project now where I am trying to weld 3/16" plate,
>lots of it. In TIG mode 3/16" is about all its good for. In stick mode I
>can blow right trrough a 3/16" plate very easily. Also if I try to weld
>more than a 4" bead at 150 amps I can no longer hold onto the gas cooled
>torch.
>
> I would like to find a MIG welder that will practically weld 1/4" steel
> all day long. Flux cored would also be a nice option (I hate buying gas).
> So how big a MIG welder do I need, any recomendations.
>
> John Roncallo