Not something to brag home to move about, but with the right wire and settings you can burn out alot of trash. When it comes to salty rusty boats sometimes thats all you got to work with..
Confirms my experience as a new amateur, it works but you shouldn't, because you don't really see what you're doing. Where I live there are different types of wire, ones you can weld over and ones you can't. Don't know what separates the wires. Only used the one you can weld over. I may have misunderstood what that meant. Thanks for great videos. Learn a lot of them.
It’s not really weld over it’s call multiple pass wire or one pass wire. Maybe we talk about the same thing but it’s just the prononciation that’s differents
Are you using fluxcore? Because with that there is GS wire which is single pass and, I forget right now, but 11T which is multipass. You still have to cleaned between passes. These guys are pros, and if people don’t clean between passes, the results likely won’t be as good.
The reason why they get called multipass or single pass is not because you can lay a weld bead ontop of each with flux or not but how it affects the metals properties and strength. Doing multiple passes with single pass wire can lead to cracking so not recommended on critical things. Since the average hobbyist isnt welding very thick metal single pass wire is perfectly fine.
Short answer is sometimes. I weld in a shop that primarily uses dual shirld, if your using all position you cant, but if you are using flat wire you can but you gotta chip the slag before you start the next layer
We tried this in other postions except over head. The way the Bohler engineer explained it to me was quality wire and settings and you can get away with alot.... doesnt mean you should try lol
Yep I've rushed weld tests doing this. When you weld over slag you have to know what you're doing. Keep it hot and watch the slag move out of your way.
There should be no slag at the root due to multi-pass, that part was welded before you welded over slag. I think you just didn't fill in all the way to the root in some spots.
How did you like that newer bohler hood? I was looking into getting one myself. And the company I'm with right now uses diamond spark for our flux core welding. Great wire for sure 👌
Depends on what wire you use. They make a basic dual shield, like 7018 rods which you can weld over slag. But most are rutile, like 6013 which is notorious for trapping slag.
I have a question. I am currently in welding school and our instructor is having us run weave beads on flat, uphill, and overhead. Is weaving against AWS 1.1?
Looked like Big Mike kept his gun very close to the work. Might have been because of the arc camera angle but it looked so close it might be hard to see the puddle. Clearly both of you are very good and experienced welders. Am I just seeing a difference in style from Big Mike?
To answer your question the camera angle made it look like I was close to the puddle but I kept a decent distance to keep the gas close to the puddle since it was a dual shield wire
fun fact, you can FCAW dual shield weld between 3/8 to damn near 3/4" CTTWD. I prefer the further back if i can, around 5/8" looks like mike was close to 3/8"
I find it funny when someone says that “Between the two of us, we have 30 years of welding experience.” Sure that has meaning, but what if 30 guys up there said that they had, between them, 30 years of welding experience? Not quite as meaningful.
i was mostly perpendicular. you are correct youre suppose to drag, just as people say you have to push with mig. Perpendicular is ideal. the angels usually help you see better. Ive found you can get away with up to 10 degrees of push or pull no matter the process. you wont be dragging this process in a vertical position.. its all subjective to what youre doing.. follow your wps
![CHILE vs. BRASIL [1-2] | RESUMEN | ELIMINATORIAS SUDAMERICANAS | FECHA 9](http://i.ytimg.com/vi/5ObJt_71AYc/mqdefault.jpg)
This channel is starting to get interesting again. I quit watching when bob left but starting to watch again now
Nice video guys
This channel is starting to interest me again.
as a tug boat repair shipyard welder, we do shit like this all the time while welding rust to rust. the boats still float!
boats have been lost with all hands because of shitty weld repairs. you shouldn't take pride in doing substandard work.
Exactly. Shipyard production welder 30 years experienced.
Not something to brag home to move about, but with the right wire and settings you can burn out alot of trash. When it comes to salty rusty boats sometimes thats all you got to work with..
That fume extractor is doing sweet f all
Correct.. it sucked... not in the right way
Confirms my experience as a new amateur, it works but you shouldn't, because you don't really see what you're doing. Where I live there are different types of wire, ones you can weld over and ones you can't. Don't know what separates the wires. Only used the one you can weld over. I may have misunderstood what that meant. Thanks for great videos. Learn a lot of them.
It’s not really weld over it’s call multiple pass wire or one pass wire. Maybe we talk about the same thing but it’s just the prononciation that’s differents
Are you using fluxcore? Because with that there is GS wire which is single pass and, I forget right now, but 11T which is multipass. You still have to cleaned between passes. These guys are pros, and if people don’t clean between passes, the results likely won’t be as good.
The reason why they get called multipass or single pass is not because you can lay a weld bead ontop of each with flux or not but how it affects the metals properties and strength. Doing multiple passes with single pass wire can lead to cracking so not recommended on critical things. Since the average hobbyist isnt welding very thick metal single pass wire is perfectly fine.
if you take anything away from this video is that "you should not do this" lol in any circumstance. just a fun experiment
@@melgross it is 11T with some thing 71 in front. Not at the shop now.
Short answer is sometimes. I weld in a shop that primarily uses dual shirld, if your using all position you cant, but if you are using flat wire you can but you gotta chip the slag before you start the next layer
We tried this in other postions except over head. The way the Bohler engineer explained it to me was quality wire and settings and you can get away with alot.... doesnt mean you should try lol
Good video. What was the gas used for this welding? Was 100% CO2 or was other mixture like Corgon ( CO2+Ar)?
Yep I've rushed weld tests doing this. When you weld over slag you have to know what you're doing. Keep it hot and watch the slag move out of your way.
Great advice
Would acid etching show more of the layers welded together?
It would!
There should be no slag at the root due to multi-pass, that part was welded before you welded over slag. I think you just didn't fill in all the way to the root in some spots.
Interesting that only the root pass on the fillet had a little something. Might need more of a drag angle
How did you like that newer bohler hood? I was looking into getting one myself. And the company I'm with right now uses diamond spark for our flux core welding. Great wire for sure 👌
hood has some kinks to work out, its nice, just hard to see and get to the buttons. Wire is the best around.
Depends on what wire you use. They make a basic dual shield, like 7018 rods which you can weld over slag. But most are rutile, like 6013 which is notorious for trapping slag.
Many welders don't understand you can weld over slag when you know what you're doing.
This wire was made with welding over slag in mind to prevent defects
@@Welddotcom whats the part number?
I did this in a shop environment, running nr 211. I cut coupons, then did a side bend test. 90% of the time there was no inclusion. But 10% failed.
So where did the slag go? Did it re melt and go to the top?
I have a question. I am currently in welding school and our instructor is having us run weave beads on flat, uphill, and overhead. Is weaving against AWS 1.1?
Not necessarily unless the weld test they give you specifically says “NO WEAVING” then a good weaving technique can be good to have under your belt
right on the money! Weaves or stringers will be determined by the WPS you are welding to.
Great video!
thanks!
Slag was my nickname in middle school.
cool flex man
Looked like Big Mike kept his gun very close to the work. Might have been because of the arc camera angle but it looked so close it might be hard to see the puddle. Clearly both of you are very good and experienced welders. Am I just seeing a difference in style from Big Mike?
To answer your question the camera angle made it look like I was close to the puddle but I kept a decent distance to keep the gas close to the puddle since it was a dual shield wire
fun fact, you can FCAW dual shield weld between 3/8 to damn near 3/4" CTTWD. I prefer the further back if i can, around 5/8" looks like mike was close to 3/8"
I find it funny when someone says that “Between the two of us, we have 30 years of welding experience.” Sure that has meaning, but what if 30 guys up there said that they had, between them, 30 years of welding experience? Not quite as meaningful.
Between me and my hands I have 96 years of life experience. Might put that on my resumé lol
I have 40 years of welding experience, by myself.
I suppose it wouldnt be.
Saludos desde Argentina
correct, in between the back weld and hot pass
good job
Thanks
Why pushing? Rule of thumb is if there's slag you drag
Dude you always drag
i was mostly perpendicular. you are correct youre suppose to drag, just as people say you have to push with mig. Perpendicular is ideal. the angels usually help you see better. Ive found you can get away with up to 10 degrees of push or pull no matter the process. you wont be dragging this process in a vertical position.. its all subjective to what youre doing.. follow your wps
not "ALWAYS"
Back weld and fill the groove through slag? So you know Carla too hmm.
dooo what?
I'm happy I learned with Bob when he was teaching smh
Didnt learn anything from this? Shame.
Top
Gald you enjoyed it!
cute shirts
Thank you 😅
thanks
You have to know what you're doing to weld over slag
very true or just do your best to avoid it
best part about knowing what youre doing is ot to weld over it in the first place. its one thing if its an accident, its another to be lazy.
Incomplete fusion
Tried and tried looks like poop, sticks like bubblegum to oil.
Let’s do everything wrong in one video.
I would say the only thing we did wrong was the slag portion, Mike needs to work on his leg lengths a bit, but other than that the content was solid.