I’m not a professional welder so please forgive if this is basic. My welder hasn’t the cojones to drive more than 0.035” Outershied. Understand 0.045 and thicker dual shield is the bees knees for structural, but for lighter work, is 0.035 Outershield that much better at penetration than regular non flux core mig?
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0.035 Outershield/dualshield worth it?
- Thread starter Lucky7
- Start date
Ironman
Ultra Member
Dualshield is excellent for heavy lap welds, like putting a new half spear cutting edge on a loader bucket. It lays down a lot of metal fast.
The following is my opinion:
I do not consider any wirefeed weld to have good strength and integrity unless it is a spray weld. Stick welding is spray and doing spray weld with wire results in great penetration and as you weld you can see the penetration crater.
The following is my opinion:
I do not consider any wirefeed weld to have good strength and integrity unless it is a spray weld. Stick welding is spray and doing spray weld with wire results in great penetration and as you weld you can see the penetration crater.
Thank you. I’m running on garage 50amps, not in an industrial setting. I can and have run 7018 and could continue, just trying to be faster, maybe better? If I understand correctly at 25 volts 350 feed (what my chart says for 0.035 dualshield, and coincidentally this is maxxing out my welder) I’m below transition to spray? Thanks again for info.
My machine is a Miller 180, it has no issues running .030 flux on a 30A breaker.
I bought a 10lb spool of .030 innershield from HD a while back and it has worked well for the .250 and .375 plate I've worked with. My truck bumpers are still in place so I guess I did okay there, just general around the shop stuff.
The list price was $99 per spool but when I went to the order desk it was only $48 so I bought two spools.
It worked much better when I discovered the knurled feed wheel.
I bought a 10lb spool of .030 innershield from HD a while back and it has worked well for the .250 and .375 plate I've worked with. My truck bumpers are still in place so I guess I did okay there, just general around the shop stuff.
The list price was $99 per spool but when I went to the order desk it was only $48 so I bought two spools.
It worked much better when I discovered the knurled feed wheel.
Dual shield and inner shield(self shielded wire) are not the same
The op is trying to run dual shield I believe ?
I happen to be at the shop this morning, .045 metal core in spray takes about 240a (dual shield would be similar), .035 would probably need 200a at a minimum to be effective
You are running dual shield right ? I didn't know it came in .035
The op is trying to run dual shield I believe ?
I happen to be at the shop this morning, .045 metal core in spray takes about 240a (dual shield would be similar), .035 would probably need 200a at a minimum to be effective
You are running dual shield right ? I didn't know it came in .035
Yea I would say your machine is to small to run dual shield or metal core, it really needs to be in spray to be effective, and I would expect even the smaller .035 to need somewhere in the low 200's to be there
There is nothing wrong with solid wire for general use, and your machine is capable of making good use of .035 solid or smaller
There is nothing wrong with solid wire for general use, and your machine is capable of making good use of .035 solid or smaller
Jswain
Joe
Curious what you're welding that you want to run dual shield?
If you want a cheaper option to c25 as shielding gas, grab a 20lb Co2 bottle and run solid wire
2x as much gas as an 80cuft cylinder of c25, way cheaper & easier to get refilled.
My Miller 250 loves it. If you Tig weld, and already have a bottle of argon, you could always T in both for ~c25 if needed.(Not perfect but works, better if both flowmeters are identical)
If you want a cheaper option to c25 as shielding gas, grab a 20lb Co2 bottle and run solid wire
2x as much gas as an 80cuft cylinder of c25, way cheaper & easier to get refilled.
My Miller 250 loves it. If you Tig weld, and already have a bottle of argon, you could always T in both for ~c25 if needed.(Not perfect but works, better if both flowmeters are identical)
yea that nomenclature with flux core is pretty crappy!
I usually like to confirm with guys weather or not they are talking about "flux core with gas, or flux core without gas", hobbyist are usually talking about self shielded wire, and shop guys are usually talking about dual shield......and more often than not neither know that the other exists (self shielded/dual shield)!
In a shop dual shield makes one heck of a mess (slag), the only benefit is see over metal core is the ability to weld out of position and its slightly less prone to porosity issues. Metal core also puts down more weld per pound of wire than dual shield.
I would agree, 75/25 and hardwire is really all you need for a garage or small non structural shop. I wouldn't touch 100% c02, not really worth the small savings for low volume, when you start buying wire in the 50g drums it might be worth looking at c02. If your looking for savings, buy/lease a bigger bottle, the price per cu ft goes down substantially the larger the bottle you fill.
I usually like to confirm with guys weather or not they are talking about "flux core with gas, or flux core without gas", hobbyist are usually talking about self shielded wire, and shop guys are usually talking about dual shield......and more often than not neither know that the other exists (self shielded/dual shield)!
In a shop dual shield makes one heck of a mess (slag), the only benefit is see over metal core is the ability to weld out of position and its slightly less prone to porosity issues. Metal core also puts down more weld per pound of wire than dual shield.
I would agree, 75/25 and hardwire is really all you need for a garage or small non structural shop. I wouldn't touch 100% c02, not really worth the small savings for low volume, when you start buying wire in the 50g drums it might be worth looking at c02. If your looking for savings, buy/lease a bigger bottle, the price per cu ft goes down substantially the larger the bottle you fill.
Proxule
Ultra Member
My biggest highlight!
Yes!
I went through trade college, and got a ticket for 'flat flux core'. Fantastic for slapping heavier stuff together.
A few years later, I was in rural Uganda, helping out at a clinic, and they'd heard I could weld.
No power, everything ran off generators.
'We have flux core!' they told me.
Rude awakening
(In fairness, almost everything they asked me to weld was super thin, and what I knew as flux core would have been terrible)