Can You Weld Over Slag With Flux Core?

Рет қаралды 16,175

Weld.com

Күн бұрын

Пікірлер: 79

@TheOneAndOnlySame 5 ай бұрын

Nice video guys This channel is starting to interest me again.

@haraldlonn898 5 ай бұрын

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.

@sibosifraiscompagny 5 ай бұрын

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

@melgross 5 ай бұрын

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.

@_hector__ 5 ай бұрын

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.

@Welddotcom 5 ай бұрын

if you take anything away from this video is that "you should not do this" lol in any circumstance. just a fun experiment

@haraldlonn898 5 ай бұрын

@@melgross it is 11T with some thing 71 in front. Not at the shop now.

@ToxicMrSmith 5 ай бұрын

That fume extractor is doing sweet f all

@Welddotcom 5 ай бұрын

Correct.. it sucked... not in the right way

@FrankDonohue-m1v 14 күн бұрын

@@Welddotcomwhat brand are those safety glasses you wear looks cool

@jeremys959 5 ай бұрын

Would acid etching show more of the layers welded together?

@Welddotcom 5 ай бұрын

It would!

@asherogden3056 5 ай бұрын

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

@Welddotcom 5 ай бұрын

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

@MrJeepty 5 ай бұрын

Interesting that only the root pass on the fillet had a little something. Might need more of a drag angle

@racolt13 5 ай бұрын

as a tug boat repair shipyard welder, we do shit like this all the time while welding rust to rust. the boats still float!

@SuperAWaC 5 ай бұрын

boats have been lost with all hands because of shitty weld repairs. you shouldn't take pride in doing substandard work.

@robertblackshear8963 5 ай бұрын

Exactly. Shipyard production welder 30 years experienced.

@Welddotcom 5 ай бұрын

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..

@TwiztidPain 2 ай бұрын

@@Welddotcom 100% living in south louisiana we would get fired if we did not prep the weld joins before repair. 99% of the times we was cutting out and putting new stock there then grinding and putting a bevel to tie into. We was working on anything from coast guard boats, tugs, oil field boats, and shrimp boats.

@MariusChirosca 5 ай бұрын

Good video. What was the gas used for this welding? Was 100% CO2 or was other mixture like Corgon ( CO2+Ar)?

@Caden_Welds 5 ай бұрын

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?

@Bigmikecustomsteel 5 ай бұрын

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

@Welddotcom 5 ай бұрын

right on the money! Weaves or stringers will be determined by the WPS you are welding to.

@CAAT308 Ай бұрын

What type of wire you using for this test?

@ericyoder3074 5 ай бұрын

Great video!

@Welddotcom 5 ай бұрын

thanks!

@MrRNTV 5 ай бұрын

So where did the slag go? Did it re melt and go to the top?

@MrJeepty 5 ай бұрын

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.

@UProof-xi1us 5 ай бұрын

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 👌

@Welddotcom 5 ай бұрын

hood has some kinks to work out, its nice, just hard to see and get to the buttons. Wire is the best around.

@tweake7175 5 ай бұрын

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.

@robertblackshear8963 5 ай бұрын

Many welders don't understand you can weld over slag when you know what you're doing.

@Welddotcom 5 ай бұрын

This wire was made with welding over slag in mind to prevent defects

@tweake7175 5 ай бұрын

@@Welddotcom whats the part number?

@robertblackshear8963 5 ай бұрын

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.

@Welddotcom 5 ай бұрын

Great advice

@nealesmith1873 5 ай бұрын

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.

@CrazyCheezey 5 ай бұрын

good job

@Welddotcom 5 ай бұрын

Thanks

@TheRustyChandelier 5 ай бұрын

Slag was my nickname in middle school.

@Welddotcom 5 ай бұрын

cool flex man

@BAAMRanch 3 ай бұрын

This channel is starting to get interesting again. I quit watching when bob left but starting to watch again now

@elkvis 5 ай бұрын

Why pushing? Rule of thumb is if there's slag you drag

@Tom-og7fi 5 ай бұрын

Dude you always drag

@Welddotcom 5 ай бұрын

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

@Welddotcom 5 ай бұрын

not "ALWAYS"

@pablorr1977 5 ай бұрын

Saludos desde Argentina

@Welddotcom 5 ай бұрын

correct, in between the back weld and hot pass

@TwiztidPain 2 ай бұрын

If you do not burn hot enough I've seen guys fail inspections with needing to grind/gouge reweld.

@melgross 5 ай бұрын

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.

@ToxicMrSmith 5 ай бұрын

Between me and my hands I have 96 years of life experience. Might put that on my resumé lol

@skitown11 5 ай бұрын

I have 40 years of welding experience, by myself.

@Welddotcom 5 ай бұрын

I suppose it wouldnt be.

@Owen-w2e 19 күн бұрын

@Welddotcom I have always hated hearing that, but it seriously doesn't matter. I've welded as a mig monkey and structural welder for a company and myself for 27 years with the exception of trying to do a easier job for 8 months. I have few curve balls but it does happen. I work with a old gent who has been a welder( mig monkey) 31 years can't fill gaps run longer beads tape ,square, level,Ole boy can't even cut within a quarter inch. And he's got 5 years on me and I have to check resquare his work etc. So not being mean but 31 years of learning nothing. You boys put it on video you know what your doing. And I don't think anyone of 30 welders would say 30 years between all 30 of us. It's nice to see you take pride still. I hate welding in flag but some repairs it's just not a feasible option and when you know your wrong that's better than the standard oh let's run a 1/8 bead on some greasy 5/8 that's gonna have 10 ton bouncing on it for the next 30 years and stand back and brag about your short circuit mig weld that barely compromised the mill scale lol. To many welders like that .

@melgross 19 күн бұрын

@@Owen-w2e it would be funny if 30 guys did say that. But it wasn’t being serious. I think people knew that. The point though, is that it doesn’t mean much when people talk about how much experience they gave. I’ve been welding since 1973. So what?

@nightheron714 5 ай бұрын

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?

@Bigmikecustomsteel 5 ай бұрын

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

@Welddotcom 5 ай бұрын

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"