Metal Core.

[Shield Arc]

A member over on WeldingWeb sent me a roll of Hobart FabCOR CVN .045" Metal Core wire to play with:cool2:. I've never been around Metal Core before. Very fast wire. All I have for gas is 75% argon & 25% CO2. I under stand if you use 90% argon & 10% CO2 it's even faster. I started out with the V350-Pro set on Metal Core .045", but later switched to Standard CV Mig. I like that better. Does make a nice looking weld!
Product Details - Hobart Brothers Performance Welding Products

 

[oldtimer 66]

Quick question are you pushing or dragging those welds

 

[Shield Arc]

I pushed these welds. For some reason I was thinking there would be a thick slag over the weld like flux core. But the welds in the pictures I posted, weren't even wire brushed.
Generally I push with Mig, but some times you have to pull when building things.
Anything that produces slag, I drag.

 

[Shield Arc]

Picked up a rental bottle of C-10 / 90% argon 10% CO2 gas the other day. This metal core sure makes some pretty welds. And very fast! This is how the weld looks, no wire brushing at all.

 

[dragoneggs]

Picked up a rental bottle of C-10 / 90% argon 10% CO2 gas the other day. This metal core sure makes some pretty welds. And very fast! This is how the weld looks, no wire brushing at all.

Gorgeous! I hope my wife didn't hear that!

 

[Shield Arc]

This wire does make some nice looking welds. Here is a vertical down hill open root weld I made with it. Still haven't figured out the proper joint prep.
None of these welds were wire brushed!

 

[blueriver]

Keep at it .. You'll get it!! As usual great job! I like how you always show good pictures with good descriptions.

 

[Looking4new]

NICE welds!

 

[ugenetoo]

Longtime welder here.
I experimented with MC wire for a new project that required using spray arc on 14 ga tubing.
My normal job is with 1/8 wall sq tubing using an .035 86 wire with a tri gas mix (.2% o2)
I found that the .035 MC wire along with the 90/10 gas mix gave a much "colder" weld, allowing the use of spray arc mode.

 

[dragoneggs]

This wire does make some nice looking welds. Here is a vertical down hill open root weld I made with it. Still haven't figured out the proper joint prep. None of these welds were wire brushed!

If I didn't know you as well, I would call BS. The first pic looks unreal. U da machine... I mean, da man!

 

[yomax4]

Metal Core is truly a nice process. It was always so expensive that it was cost prohibitive. $3-4 # You can lay down some nice spatter free welds with it. The prices came down and it became more affordable $1.50-2.00# but with the introduction of Pulse, metal core has taken a hit.