🔥 Welding over Dirty vs. Clean Material (How to Properly Clean your Metal Pt 2)
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- čas přidán 20. 08. 2024
- Watch Part 1 of this video here: • 🔥 How to Properly Clea...
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I like the way this man is laidback, that’s one of the things that’s makes him a good instructor and a lot of years under a welding helmet
Super helpful. Thanks a bunch for posting. This is a great reference for many of us self taught welders and figuring out what went wrong ;-)
I'm glad you brought up the point of contaminated filler rod. I try and preach that to people a lot, and many have scoffed at me for it. But I'm glad to see an expert agrees.
Gotta wipe it down before you start dippin it!
Yep i hear that a lot. I thought it was more for aluminium?
Some people recommend you snip the ends of the rod after running a bead to ensure a clean start.
I notice Bob does not seem to do that nor many others i watch.
Thoughts?
As always Bob, thanks again sir. You and Jodi are my favorite guys I look forward to watching and learning each week. Thanks again.
Thanks
Thanks for another great instruction Bob. I'm self taught with much assistance from you and Jody, but especially you. Can't tell you how much your instruction helps me do it correctly. Keep 'em coming
Seeing the different conditions has to help, pretty handy video. I never tried welding over much more than a light flash rust, my machine likes to bite back a little more than I like to want to try it! 😫✍🏼⚡
Mill scale vs rust was a real eye opener though, mill scale on new steel is worse than rust on old, cleaned steel. Blew my mind.
Sufficed to say, if you have to weld it...(especially with the GTAW process) take nothing for granted and everything is dirty!
Threw me for a loop too.
Bob, the reason the very first weld on the rusty metal was the way it was is because you are such a good welder. One day I hope to be as good, maybe.
Like it was said before many times... here comes the rule of 3 C:
Clean
Clean
Clean
And when you think it's clean already... clean a little bit more :)
Thanks for a great demonstration!
Thank you for taking the time to share this information in a accurate and organized manner.
Really nicely demonstrated Bob, thanks for sharing.
Cleaning your material can also go a long way for oxy/acetylene cutting. One minute you have a great flame going and the next thing you know you have a piece of mill scale stuck in the center hole
Thanks, cleaning seems to be the key for the best weld possible. Great video.
Gee Bob, you've got a tremendously helpful channel going, with some fantastic camera people! Just wish you were closer so I could convince you to sit down and have a beer while I pick your brain a little. If I had half the knowledge that you've already forgotten, I'd feel I know more than I do now! Thanks for sharing your know how with us.
Where are you? I travel well.
Bob Moffatt suburbs of Chicago ;-)
Sounds like u like to have your brain picked at while drinking beer, as much as, if not more than you traveling well, lol. “I keed! I keed!” But anyways, Thanks for making the video and sharing that with us, a lot of good & useful information packed into that one video, even if I haven’t even tried TIG welding yet. Keep up the great work. Aloha
Agboo Hans yes indeed the video selection here is valuable! After many hours watching and absorbing, I asked my welder buddy to drop off his 110v mig, and putting me to the test he loaded flux core and adjusted all the settings. Needless to say I've watched enough videos to first check my settings, and much to both of our amazement my welds on scrap had minimal porosity and were actually of decent quality. His first question after overlooking my practice was "who's videos have you been watching, Bob's?" Well, we sat down and chatted about Bob over a beer! I can't thank you enough, not only for allowing me to impress my professional welder friend, but also for teaching an old dog some new tricks, enough so that I think I may have taken up a new hobby! Thank you Bob and Team!
thank you for your work--- I really enjoy your calm presentation
Can you please do a video on air gouging and what air pressure do you use
Hey Bob, way, way back before SMAW electrodes had flux on them, welders figured out that rusty rods welded better. I would guess that's why the rusty mild steel welded better than you expected. (Not so on the mill scale only.) :-)
Love that you show the screw ups also!
I'm good at screw ups!!
I get a lot of questions on "how to fix" and why is this XYZ" and way too often I know the answer and the reason is I have made that mistake before. Making mistakes happens, learning from them is what separates folks. Sometimes you can even learn from others screwups. Doesn't always stick as well as when your butt is on the line, but... Too many videos are sanitized and you never see learning moments.
S Koue I learn a lot from my screw ups and I'll certainly share.
Most times i find i learn better from screw ups than getting it right.
Great video never thought about cleaning the metal before welding will from now on big deference.
Easy to say it doesn't take long to clean your material, when your not hanging upside down half inside a rusty tractor with a grinder trying to get into that corner which is impossible to reach with human means.
Great videos! I especially liked the video on oxyacetylene cutting you posted a few days ago. I hope to see more of those. Keep up the good work.
Hi Bob great tips. I in joy the channel a lot I have a Miller 215 it does Tig but for Alumm I have to use a spool gun have to fix a top on my tool box. Try to Tig it made a mass of it Got the spool gun for the miller will try it again. Went to the welding shop they said on the 215 I have to use a spool gun. Been welding steel but Alumm is a little harder.
Bob has a video on using a DC machine (like your 215) to TIG aluminum with helium shielding gas.
Hey Bob, love your stuff. Just a minor correction (nitpick) - it's silicon which is the metalloid substance. Silicone (with the soft ending) refers to synthetic organic chemicals containing silicon (because it can be substituted for carbon).
Thanks Bob
Interesting that in a pinch one could tig weld over rust or scale. Not a good weld but honestly not as horrible as i expected.
I wish you included gal in this demo though. That stuff is horrible to weld when its not cleaned properly. Hell even when ya think its clean you still get those spider web things.
Cheers Bob
learning a lot with your lessons, thanks! can you do a video with sheet metal? around 16 to 12 gage using mig?
Sure
Hey bob i have a couple questions... im 100% self taught from watching you and Jody and im having a few issues that seem to keep happening no matter what i do. First off when running beads on flat plate around 80-90% of the time i keep getting a black soot looking stuff on each side of the bead. I am using a #7 or 8 gas lense and 20 cfh and a 2% lanthanated tungsten. I can take a brand new freshly sharpened electrode and still get it. Cold rolled 1/8th inch plate. Tried s-2 and s-6 filler. Still get it most of the time....
Next is something i think is just me and my ability to control heat input, but ALL my beads have a real dull grey finish to them. when watching videos and doing a little research it's like everyone else's beads are real shinny and have some color in them. But when doing a fillet weld i get that shiny look... Sorry for the long and random post, it's just been frustrated at times trying to learn this skill on my own without any guidance in person lol. Love the video! keep them coming!
songer121 grind your electrodes on a grinding wheel that you only ever use for tungsten, if you ever grind something but a tungsten electrode with a grinding wheel it picks up some of the metal you ground and that's usually enough to contaminate your electrode and get the black soot. It's especially bad if you grind aluminum, because the grinding wheel loads up with it very quickly
songer121 Most likely too slow of travel speed and or too long of arc.
I had that soot problem too when I started, didn’t know what it was. I finally figured out my machine was inline with the work and the airflow from the cooling fans was blowing the argon away from the weld area. I turned the machine sideways and solved the problem
thanks!
Sounds like you’ve got some interference with your shieldingas. Torch might be leaking or as mentioned the stick out/arch is to long
So arc moving around is inevitable?
Sorry I commented on a other video of yours what I wanted to comment on this video
Nice video.... Thanks!!
Real life sir
Hi. Just a question. If appearance is not good...could I say: Strength and toughness are not good either?. I am thinking in the case that doing welds on a dirty surface, someone could get an "acceptable" good looking weld, (just maybe)...In such a case I would be concerned with strength. What do you think about this. In my country we use to say: "Las apariencias engañan". I remember another video of yours presenting the UT method: the problem is there where you don´t see. That´s why that could be another argument to pay attention to cleanliness and proper preparation of surface. I have struggled too much on this point. And the point sometimes is: "look at this....good face, don´t bother me with your school arguments". etc. Thank you!
Very usefull thank you
I'm now going to have to smell my 4043 filler material to see what it smells like... Lol
So b4 i go out and buy the stuff u guys ever use 3/32 6013 on dirty old exhaust and frame work. Or do you kust gotta go get a mig do 16 gauge?
I took your advice when I weld. Stupid question but if your have some really crusty material and you clean and shine the material at ground and where you're going to weld. By clean I mean shiny bare metal. Do you need to clean any of the other crusty stuff off the metal?
Not really. Depends on what it is going to be used for.
I weld a lot of heavy material with flux core.......my needle scaler is my best friend!
Bob can you do a video on how to properly do a open root pass?
We have many times
Ok bob im new to your channel can you put a link to a video of yours thank you bob
Bob when you do the keyhole do you drag or whip?
Agustin Hernandez What process?
Stick welding
Your video was very informative on welding without cleaning the metal but I was taught to always to use proper respirators when welding stainless steel because the metal gives off toxic fumes. I was wondering if you believe that wearing a ventilator is always needed?
When you forget to change cups, is caused by, too much snow on the fairways. Just say'n.
Did you use the same gas for each material?
Yes
Good stuff Bob, thank you. Question though, sounded like you switched to a lower freq on the 2nd al. pass, do you prefer that? I imagine it's different dependent on the variables, but in a nutshell, is 60hz good? And thanks for the tip on bumping up the flow for aluminum, 1st I heard that.
I left the hz at 100 throughout.
Hey Bob what's the best grinder for the money an what's the best grinder period ...in your opinion
Walter has a great one along with all the abrasives.
So does the direction of the grinder grain affect the weld in a given direction?
It can but should be negligible.
randalljames good question.
Maybe the clean beads should be made first to be sure that the setup is OK and the sh**ty weld is because of uncleaned material, not wrong size cup or gas flow.
Maybe we just clean our material first and don't make sh**ty welds?
We have an old century 110/90 at work and it and me can weld on rusty and greasy metal way better than on clean metal. What's up with that bob?
Tig weld?
Sorry, mig weld
Johnny missfire Operator? Boy you got me. Don't know at this point.
I always thought it was weird and didn't make sense either. Old cars in the rust belt, I guess I just figured out how to make it work. Now if I could just learn to do it the correct way.
does anyone else sing the dab song while tig welding? maybe im crazy dab dab dab dab dab dab dab
I try not to because of previous experiences. What would I sing when I walk the cup? What if I get the two songs mixed up? LOL
"unclean" material. lmao. this is all shop examples... Try welding on a loader bucket behind a barn. Tips on getting that heavier rust off in tight places would be helpful.