Spray arc...

[Shield Arc]

Here is some .035-inch 71M dual shield wire.

 

[yomax4]

Good Stuff. Dual Shield was the 1st wire to get spec approval to replace 7018 stick. Great out of position wire due to the fast freeze flux. A little on the smoky side for me though.

 

[Big Barn]

Dual shield is pretty easy to run. Here's my very first try with .045 71M wire last year. Obviously not as pretty as Shield Arc's.





Terry

 

[rockinacummins]

I hate spray arc. Did that for a few months in a construction equipment manufacturing plant. It's fast, but it's HOT. I'd rather burn 1/8" 6010 or 7018 for 10 hours.

It has its place, but not in my operation.

 

[Arc weld]

Flux-core wire encompasses hundreds of different types. The Dual shield type for the most part can be matched to specialty stick rods for most applications. It can have high production but so can self-shielded flux-core. Try some E70T-4 and it will lay a bead as fast as you can move your hand. I ran some 3/32" and was only around 400 amps(I think) but still went through a 50lb coil in under 2 1/2 hours. Check out the deposition rate of .120 at 600 amps, 39.5lbs/hr.!

Innershield(R) NS-3M

 

[yomax4]

3/32 is crazy sized wire. No thanks.

 

[Shield Arc]

3/32 is crazy sized wire. No thanks.

In my line of work, it was very seldom we got wire smaller than 5/64-inch. If all the welds were vertical uphill we might get .068-inch wire.
That NS-3M wire is very fast!:thumbsup:
I've run some 3/32-inch wire when welding the precast concrete deck panels on container ship docks. We slapped a piece of angle iron under the rebar sticking out of the precast concrete panels. Made 4-welds on each piece of rebar.
Like this top detail.

 

[Oldpath05]

3/32 innershield is run through a hand held mig gun? must be a massive gun to hold and or water cooled. At BIW shipyard 1/16 is as big as it gets for mig gun use, .045-.052 is the gotto popular mig wire bigger wire like 1/8 is used on subarc.

 

[Shield Arc]

All we ever got on the job, was Lincoln's K-126 guns. I've run them at 450-amps for 10-hours a day.

 

[Arc weld]

Lincoln has a 600 amp gun for .120" wire.

http://www.lincolnelectric.com/en-c...CAW-SS120-764(LincolnElectric)&producttype=gt