Nice video Greg. I’m currently running .045 dual shield at work, with no damn end in sight lol. I’m doin a mock-up just so they can see if it holds up bc the fabricator messed up a few pieces which means 2.5” of buttering up before it gets to the regular root and groove. Once the ln25 gets dialed in it runs great. It’s definitely cleaner than fluxcore, but tarping everything in to keep the wind away makes for a hot ass day. Everytime that I’ve ran dual shield it’s been with 75/25 Keep the videos rollin bro
Nothings worse than putting tarps up to keep shielding gasses from blowing away. That’s bringing back bad memories of when I was tig welding a aluminum trailer outside while crawling under it a few years ago lol. The wind keep blowing tarps into my face as I was trying to weld 🤯. 100 degrees, dripping sweat, and keep lighting myself up with high frequency arc starter because of the wet/salty clothes. Making good welds under bad conditions is what separates a excellent welder from just a good one lol.
The flux inside self shielded wire creates CO2 and other gases when vaporized, as well as forming a slag shielding. Using gas (argon in particular) with self shielded CAN cause gas to become trapped in the molten weld, since argon is heavier than the other gases, causing porosity.
Very good thoughts and I think you are right. I have a bottle of straight c02 (that I use for filling off road tires), I might have to try that to see what happens lol. I have to find a adapter that will work the the bottle though.
Super interesting test! As others have mentioned, seeing the results of switching polarity would also be of interest. While I have both flux core & hard wire (& have always wanted to try dualshield) I hadn't considered what would happen using flux core with C25. Thanks for sharing!
I will be switching it tomorrow and the video will be up Saturday. Normal dual shield is run dcep so it’s not out of the question that it may work. I know straight gasless flux core runs poor on DCEP so who knows what a gas blend will do to help 😀. I have ran a bunch of actual dual shield and like it a lot. Its unfortunate it’s very uncommon to find it in smaller spools. Having a giant spool worth sitting around is hardly cost effective ☹️.
Kwik Trip breakfast sandwiches were a staple of my diet until I moved to Texas, two years ago. Far superior to Holiday, the only other place in town with hot breakfast food available.
Kwik trip definitely has some decent stuff. I got scared for a while when they started selling shrimp in the hot food section. Luckily I think they were a bit “out of their league” on that and went back to more standard stuff lol.
it would be interesting to compare porosity of fcaw-s with stringer bead vs manipulation...perhaps stacking of puddle with manipulation would alter porosity.
@@makingmistakeswithgreg I have no idea...perhaps manipulation keeps the puddle warm longer allowing gas to exit, perhaps the opposite is true. I have heard worm tracks with dual shield often occurs when stickuout is too short and flux preheat is reduced but don't know. no experience myself. thanks for your continued efforts to elucidate truths in welding.
wow, those are some surprising results. I would be curious what would happen if you swapped the polarity while using the shielding gas and also, if you had Co2 (does the penetration improve?). Great video, btw. 🤔
I am going to swap the polarity out tomorrow to see what happens. I know DCEP runs terribly for straight gas-less flux core, but who knows what happens with c25z. I do have c02 but I don’t have a regulator that hooks to the bottle. I will definitely try that in the future 😀. I would assume straight c02 will increase penetration.
DCEN which is what gasless runs normally. I might have to give it a shot tuning DCEP just to see what happens. I know gasless flux core runs poorly dcep, yet dual shield is commonly run that way.
So 100% co2 would likely require more voltage and it would probably make the weld more brittle. Some dual shield wires use it but I have a feeling it would be far more negative of a result than what was seen with c25 lol.
Nice video Greg. I’m currently running .045 dual shield at work, with no damn end in sight lol. I’m doin a mock-up just so they can see if it holds up bc the fabricator messed up a few pieces which means 2.5” of buttering up before it gets to the regular root and groove. Once the ln25 gets dialed in it runs great. It’s definitely cleaner than fluxcore, but tarping everything in to keep the wind away makes for a hot ass day. Everytime that I’ve ran dual shield it’s been with 75/25 Keep the videos rollin bro
Nothings worse than putting tarps up to keep shielding gasses from blowing away. That’s bringing back bad memories of when I was tig welding a aluminum trailer outside while crawling under it a few years ago lol. The wind keep blowing tarps into my face as I was trying to weld 🤯. 100 degrees, dripping sweat, and keep lighting myself up with high frequency arc starter because of the wet/salty clothes. Making good welds under bad conditions is what separates a excellent welder from just a good one lol.
The flux inside self shielded wire creates CO2 and other gases when vaporized, as well as forming a slag shielding. Using gas (argon in particular) with self shielded CAN cause gas to become trapped in the molten weld, since argon is heavier than the other gases, causing porosity.
Yes, and it will negatively affect the performance of the weld in destructive testing. Definitely not a good idea lol.
My take is that the co2 does not add enough heat to overcome the argon and being DCEN. I bet you would get similar results if you ran solid wire DCEN.
Very good thoughts and I think you are right. I have a bottle of straight c02 (that I use for filling off road tires), I might have to try that to see what happens lol. I have to find a adapter that will work the the bottle though.
Super interesting test! As others have mentioned, seeing the results of switching polarity would also be of interest. While I have both flux core & hard wire (& have always wanted to try dualshield) I hadn't considered what would happen using flux core with C25. Thanks for sharing!
I will be switching it tomorrow and the video will be up Saturday. Normal dual shield is run dcep so it’s not out of the question that it may work. I know straight gasless flux core runs poor on DCEP so who knows what a gas blend will do to help 😀. I have ran a bunch of actual dual shield and like it a lot. Its unfortunate it’s very uncommon to find it in smaller spools. Having a giant spool worth sitting around is hardly cost effective ☹️.
Kwik Trip breakfast sandwiches were a staple of my diet until I moved to Texas, two years ago. Far superior to Holiday, the only other place in town with hot breakfast food available.
Kwik trip definitely has some decent stuff. I got scared for a while when they started selling shrimp in the hot food section. Luckily I think they were a bit “out of their league” on that and went back to more standard stuff lol.
@@makingmistakeswithgreg what part of Wisconsin are you in? I'm from River Falls, on the west side. Moved to TX in November, 21.
"Poor man's dual shield" E71T-1 (the typical dual shield flux core wire) is generally cheaper by the pound than self shielded flux core wire.
it would be interesting to compare porosity of fcaw-s with stringer bead vs manipulation...perhaps stacking of puddle with manipulation would alter porosity.
What are your thoughts, more or less via manipulation? Tomorrow I am going to grab some .035 wire to try things out again. Along with DCEP polarity 😀
@@makingmistakeswithgreg I have no idea...perhaps manipulation keeps the puddle warm longer allowing gas to exit, perhaps the opposite is true. I have heard worm tracks with dual shield often occurs when stickuout is too short and flux preheat is reduced but don't know. no experience myself. thanks for your continued efforts to elucidate truths in welding.
wow, those are some surprising results. I would be curious what would happen if you swapped the polarity while using the shielding gas and also, if you had Co2 (does the penetration improve?). Great video, btw. 🤔
I am going to swap the polarity out tomorrow to see what happens. I know DCEP runs terribly for straight gas-less flux core, but who knows what happens with c25z. I do have c02 but I don’t have a regulator that hooks to the bottle. I will definitely try that in the future 😀. I would assume straight c02 will increase penetration.
dual shield is likely useful only with stuff thicker than 1/4. the dig is too severe for anything thinner.
What polarity did you use?
DCEN which is what gasless runs normally. I might have to give it a shot tuning DCEP just to see what happens. I know gasless flux core runs poorly dcep, yet dual shield is commonly run that way.
how about 100 percent co2 , same wire ?
So 100% co2 would likely require more voltage and it would probably make the weld more brittle. Some dual shield wires use it but I have a feeling it would be far more negative of a result than what was seen with c25 lol.