Weaves look better but damn now we have some actual evidence that stringers are stronger... Great video thanks for taking the time to do all this testing I’m sure everyone appreciates it 🙏

@Trumplican

4 жыл бұрын

spoiler! lol

@MLFranklin

4 жыл бұрын

Yup. I had the same thinking and today my mind was blown.

@chriszak5146

4 жыл бұрын

I don't know why, but I wanted the weaves to win lol

@Phoenix-hz5wl

4 жыл бұрын

He also was doing single bead passes with the weave compared to multiple with the stringer.

@dabl9034

4 жыл бұрын

Also looks like he’s using fluxcored process so weaving might be stronger on different processes like gtaw

This popped on KZread today. The main reason that stringers are stronger is because each stringer normalizes the previous bead. This means that the grain structure within each bead becomes small roundish grains. Forming a tight chain. Weaving tends to give a jagged structure called columnar crystals. There is also less chance of the formation of hydrogen pockets, which can lead to hydrogen induced cracking. The test used on oil platforms in cold environments like those in the North Sea is COTD (Crack Tip Open Displacement). This is where a small notch to simulate a crack is put into a material. The material is cyclic loaded like bending a can back and forth. This is done to replicate wave motion. After a number of days, the specimen is measured to see how far the crack has run and also to see how much it has opened. The tighter the grain, the better are the results. Sorry if too technical. Love the videos by the way, keep them coming.

That's why my welding instructor, which was formerly an aerospace welder, said there's no place for that fancy looking shit and just weld straight.

@business9854

4 жыл бұрын

LawF250 you mean formerly ?

@LawF250

4 жыл бұрын

@@business9854 Yeah, well I'm not perfect at grammar. My welding is better😂😂

@business9854

4 жыл бұрын

LawF250 haha. Cheers!

@thetexorcist2235

4 жыл бұрын

LawF250 aerospace welder that shit sounds crazy

@joryjohnson8108

4 жыл бұрын

@@LawF250 Q: What do you say to a person who can't read, or write well? A: Nice weld.

I’m just happy when I can get a arc established and make a straight line.

@alisonmilke6103

4 жыл бұрын

Same!!

@justintothetruth

4 жыл бұрын

sniperdoug1969 and white

@turbotony796

3 жыл бұрын

YEAP!!!!!!!!

@carpediemarts705

2 жыл бұрын

On a mig? You have trouble making an arc?

@lemegaoof4323

2 жыл бұрын

I’m not sure what you’re doing with your arms but usually you tend to do a “windshield wiper” motion rather than your arm moving horizontally so it causes your bead to curve a bit

Jokes on you, I was pissed off before I clicked on this video.

@plepizify

3 жыл бұрын

That's my secret captain. I'm always pissed off.

Stringers = Stronger Weaves = Weaker the first letters are the same so its easier to remember.

@jamesmay9345

3 жыл бұрын

@@mail-qh2qc weaves are worse for joint pain.

@Taunus-Tim

3 жыл бұрын

Depends on the kind of stress and load that the weld has to withstand.

@carpediemarts705

2 жыл бұрын

Man... What a spoiler. I wanted to watch the whole 30 minutes before I found out.

@Siddharth_Pawar_Official

Жыл бұрын

Very well said👍👍

@ahmedzayed5587

8 ай бұрын

Well said, man 😂

Weaving for superficial looks, stringers for core tensile strength. Great video. 👍

@TheBloodyScott

4 жыл бұрын

So do stringers up to your last pass, then do one weave to make it look fancy.

@terrydodson12

4 жыл бұрын

Terry dodson it was not an honest test to hold your weld metal at 350 or below the stringer passes had less heat an more time to cool if you would of stopped your weave passes about half way an let them cool back to 350 degrees an then finished your weld especially when you were over half way through the weld . There's notably way more heat in a weave pattern especially as you get closer to your cap. I have been a welder for over 35 years ,an stringer verses weave has always been a debate over with was best .most companies I have worked will not let you run weaves over a certain size most want stringers .Really good test though never have seen one so done by the aws labs before nice job,enjoyed the video.

@TechieTard

3 жыл бұрын

@@terrydodson12 The fact that some welding certifications do not allow weaves tells me all i need to know about them

@coltonrooster

2 жыл бұрын

@@terrydodson12 time is money 🤑

@willjones5816

4 ай бұрын

FYI weaves are used in the field with certain applications to stress relief the previous pass (smaw). Weaving is also faster production with smaw. Put two welders welding pipe. If one runs stringers and the other weaves, the weaves will finish faster every time. Seems to burn hotter which makes sense with all the local heat.

As a CWI I love seeing someone do a legit test like this. I hear from so many welders that "there's no difference" and this is a great video to show them

@BCzepa

Жыл бұрын

it is purely because of the heat buildup? i wonder if you weaved but started from the center and welded out would that change?

@richard.20000

Жыл бұрын

Also stringers has less thermal deformation due to shrinking - only the last string connects both material "coasts" to pull it together. For high pressure steam piping (heat treatment to release tension, X-rays tested) I've seen strings only. There is a good reason why those critical welds (where human life depends on it) are forced to be strictly a string only. For those critical applications whole weld procedure has to be tested and certified before applied on site.

I'm a hobbiest welder but also an engineer so I'm really geeking out on this data. This is super educational and well done. I was a fan of weaving with my little MIG until today. You changed my thinking. Will add this to my playlists and add it to my personal favorites list as well.

@wint3rsmith42

4 жыл бұрын

i'm the same, welding 10mm thick is a big day for me, mostly 6mm 3mm stuff. also i've never seen a mig set leave a slag cover like that before, is that the wire type or flux coating or something?

@mikepalmer4371

4 жыл бұрын

Wint3rsmith He’s running duel shield, flux core wire but also 75/25

@onyx_might72

2 жыл бұрын

Must be Andrew Luck !

Pass 4 labeled weave when pass was stringer. then weave was labeled as a stringer. But I absolutely love the welding, the cross section, the testing, everything was friggin amazing.

@glass4breakfast

4 жыл бұрын

yeah around 8 minutes they're labeled backwards i noticed too

@juangonzalez9848

4 жыл бұрын

Good, I’m not going crazier then I already am.

@eliotdouthit1024

4 жыл бұрын

Yea don’t know much about either both looked to be about the same but noticed it was labeled wrong very quick after I noticed stringer was one line and weave was a wider pass

@wiggledig7837

4 жыл бұрын

yup

@timelapse6490

4 жыл бұрын

They really need to sort this out

Wow. That was amazing. Thanks for sharing. Next up. Rod vs wire.

@isaks3243

4 жыл бұрын

just add in TIG and oxy acetylene welding just for good measure. would be fun to see the results of the different types of welding.

@WBush-uc9pe

4 жыл бұрын

Always keep your stick on the ice and your rod in a heated quiver! ;-)

@mancelprince7426

4 жыл бұрын

@@WBush-uc9pe Was that a little AVE added in there? But he's talking about a vice not ice and he isn't talking about a stick.

@JohnSmith-bx1mp

4 жыл бұрын

@@mancelprince7426 see Red Green.

@nuggetwv5302

4 жыл бұрын

Yes, lets see multiple types!

ME in training here. We covered this type of testing last semester in my materials course. Very interesting to see practical applications for it. One thing that a super rigorous experimenter might do to further reinforce the results would be to run the tests on several sets of samples, all welded by different people, just to make sure that any individual technique variation would be averaged out. Cool video!

@Farlig69

4 жыл бұрын

Exactly, this & several samples testing tensile in different directions as well - parallel to the weld & perpendicular.

@PBMS123

4 жыл бұрын

@@Farlig69 You're testing the weld strength, so you want the weld bead to be in the middle of the specimen. Which means perpendicular specimen. There would be no point in testing pure weld metal. The plate is a known material, with known properties. The weld is not. You would not do test with different orientations. Not only that, but as long as the metal is in the middle, it wouldn't matter.

@trollmcclure1884

2 жыл бұрын

that hammer has to have some impressive microsecond reading IMO when weaving one side cools down before you come back to it and that's a problem too

Best part was when you switched hands to level up the weld - I've never seen that before and I learned something new! Thanks!

Thank You, There aren't enough video's about the higher end welding applications. We don't have a lab where I work, so we send off samples to be tested for WPS docs. So this is a great learning tool. One of the larger companies recently added a requirement that on every WPS ( welding procedure specification ) must state that no bead be larger than 3 rods wide. If your using 1/8" that means that the single stringer bead can be no wider than 3/8". Thanks again.

I am a quality technician at an aluminum extrusion plant doing a lot of tensile test every day. I was totally geeking out during your test segment. Thank you for including that! Very interesting and fascinating

GREAT TOPIC FOR THE WELD JUNKIES! LETS FIX THIS AGE OLD DEBATE!😁

@martindesrocher4528

4 жыл бұрын

nothing was laid to rest here ! he butchered is weaves by stretching them beyond beliefs ! what's wrong with all of you, no one noticed ? it's like hey lets see which car is the fastest with the same driver testing both but on one test the guy tries blindfolded and everyone says yeah well that other car sure was a lot faster than the one you tested blindfolded, that settles that age old question !! lol i could copy and paste that answer of mine to at least every second person...not worth my time,already wasted too much !

I’m officially the world’s newest newbie welder and I didn’t even know there was an age old argument... I still found the video absolutely mesmerising. Well done, more suspense than most TV dramas, thank you.

The last time that I put _that_ much effort into analyzing a joint - was when the dispensary was closed and I had to buy a bag in a parking lot from a dude named Bort. (EDIT: Yeah, you read that right: Bort.)

@weldorworx6858

2 жыл бұрын

🤣🤣🤣🤣🤣🤣

@taylorvaughn5206

2 жыл бұрын

Idc what you say that’s funny shit 🤣🤣

Haven't welded since high school and now getting back into it. Thank you for this video. Knowledge is key.

In all my years as an ASME certified welder, I've never seen a GMAW/FCAW welding procedure with a 1/2" root opening for 1/2" plate. You can keep your interpass temp at 350F but your heat input from weaving will cause your cracking and lack of fusion problems. Most ASME customer required weldments would require a Joules requirement formula for heat input. Jobs and material to be used in environments of -20F would certainly require this.

@genesenecal9140

4 жыл бұрын

@@dohabandit I agree. The issue of weaving in the middle portion of the weld as well as the cap pass. still presents problems with lack of fusion in the sidewall as well as the previous pass. My response is predicated on those who are welding under a certified weld procedure. For those in other welding circumstances, you do what is best for your particular need, but I believe stringers are the best for penetration and fusion ( if weld parameters are set right).

This was really interesting; my instructors back in my active college days didn't have a charpy machine, only tensile and u bend test rigs (this was back in the the early '90's), so seeing the same results with much more accurate testing equipment was awesome. Thanks for doing this, as well as confirming my faith in dual shield welding as (for the most part) the best of world's for structural work.

Well, when you're weaving that wide, dont think there will be much hope for it in the strength tests.

@nastynate4242

3 жыл бұрын

He didn't test the wide weaved cap.

@jacktheaviator4938

2 жыл бұрын

The cap was ground off, but it still dumped a massive amount of heat into the part. I worked in a fab shop that built bridge beams. One of the "ol timer" types decided he was gonna weave instead of stringers, regardless of what the specs called for. They were told the steel would have to be scrapped (or used for shorter pieces if possible) because weaving dumped too much heat into the part. The beams had to be cut back 100mm to remove the tainted steel.

I have always wondered this. I worked years building massive heavy equipment attachments from excavator buckets you could park a car in to mine plows over 45 foot wide and although we had many specs to follow, they never told us whether or not to use a single pass or multiple for each build up and cap run. I always ran single passes. We regularly welded grooves much larger than what you were working on. Typically 1.5 to 2 inch grooves and we had to preheat the steel to 400 degrees, if I remember correctly. Our welders were on booms above us and I used to duct tape two together each running 1/16 wire and put half a dozen asbestos pads on my gloves and go like hell until I couldn't take the heat anymore. Now I know it likely would've been better to spend much more time doing tons of smaller passes BUT we never had an attachment come back due to weld breaks. We did have some come back due to the machines ripping the four inch thick, hardened steel cutting edges apart.

This is a phenomenal video! Thanks for putting this together. I'm sure there's a lot of hobby welders like myself that would love to see the results on thinner steel (say 3/16") with just gas shielding.

Explained in a way we do understand, came up with a very informative video. Hope Bob is doing just fine.

Pretty interesting result. The extra heat input from extra time weaving adversely affects the weld strength. Great video.

Awesome to see both the welding and testing for stringers vs weaves in a video. Thanks for putting this together.

You guys have thee best channel for understanding concepts and easy to watch demonstrations.

When I was doing D1.1 root/multi I always did stringer. What I did for the cert and what I kept doing. I was lucky enough to have Dennis Wright as a teacher. (Writer of the AWS GMAW process)

@MrRockIsAwesome

4 жыл бұрын

Man that's awesome. I would think that it would be common sense that stringers are stronger, but maybe I'm being full of myself. Anyway, you're lucky to have been taught by that guy.

One thing I will never be able to say.....”I’ll just toss it over in the water jet and zip some pieces out....” Lucky dogs.

@ryanjones9305

4 жыл бұрын

Frank deluca ok Frank, you got me there. Let’s change it to “fortunate” dogs. I’m fairly certain they didn’t just happen upon a water wet.

@robertbogan225

4 жыл бұрын

Only 300mil in the usa. Over 7 billion on earth. You are lucky just to be born here. What you make is always up to you.

@ryanjones9305

4 жыл бұрын

Robert Bogan you got that right, and I thank my lucky stars, or fortunate stars, or whatever, every single day.

I truly appreciate the opportunity for these vicarious trainings. I do wish the presentation were not as fast paced. But they are detailed and clear. The greatest advantage is that I can repeat the videos often.

This was a great reminder. I’m about to weld up four 40’ tall wind generation towers that ‘break’ at the base to lay over for repairs. The spec is for 16 tonnes dynamic load. I’m going to be making up several of this type of joint and am glad for the reminder. I’m a farmer and not a welder by trade so these videos are real life savers!

What does any of this mean? Where am I? How did I get here? I was watching chickens in a coop 2 minutes ago. KZread.... What ya doin? But all jokes aside, I think I learned a lot from this, while not even knowing the first thing of anything welding or metal. Lot's of knowledge on display here, good quality.

@MaineHomeShop

4 жыл бұрын

Yeah - once in a while you switch from entertainment to actually learning something :P

@anthonyjones657

4 жыл бұрын

You watch chickadee engineering too lol

@matthewlewis9996

4 жыл бұрын

Weld up some chickens 😂

@FroggyMosh

4 жыл бұрын

@@MaineHomeShop Aye, now I can tell _Strings_ from _Weaves._ And know there's some MatheMagics™ going on under them. All *Very* interesting stuff. I don't own a welder. Haven't held one in years. And this vid is going in *Deep.* I don't think my mind can handle science of this magnitude! What I'm saying is: _Chickens are more my speed, right now._ :P [Edit: KZread doing it's double spacings thing again....]

@FroggyMosh

4 жыл бұрын

@@matthewlewis9996 You know? I should. Out of some scrap metal.... That's be cool!

My instructor taught me to lay the root and fill with stringer, root being wider often, and cap with weave, I suppose that combines the strength of a stringer and the fancy eye piece of the elustrious weave

Great video again. Definitely testing I'd never got to see on my own. Thanks for all the effort you guys put into educating the rest of us.

@GodslilRedneck23

4 жыл бұрын

Kevin Lee we appreciate you all taking the time to watch us.

Thanks I use both styles and never knew there was a strength difference. It will change the way I weld from now one.

Great video Jason, I like both styles but this really shows how excessive heat can compromise your weld in multiple ways. Thanks for sharing team :-)

@user-jz3lc3tf1g

Жыл бұрын

Braiding is supposed to weld faster, but affects weld quality

The fact that some welding certifications do not allow weaves tells me all i need to know about them.

@TechieTard

3 жыл бұрын

Common sense would typically have you earning much more thumbs up with that comment. However, I've realized over the ages that common sense isn't common. bottom line, weaves aren't allowed in some certifications, they've been tested and found not up to par.

@thomascraig3694

2 жыл бұрын

@@TechieTard Common sense would also refrain from redundantly repeating what was just stated. I mean, I know in engineering that redundancies are good n necessary, in this case no.

@statementleaver8095

2 жыл бұрын

Anything not structural or high pressure. Anything a level 1 welder cannot touch.......in other words stick to garden furniture 👍

@thomascraig3694

2 жыл бұрын

For the record, there's actually not a great deal of difference between a weave and a multi-run fillet, when performed with the requisite skill, in terms of penetration. Weaves, however, tend to impart excess heat into the material (as per the video) and are much easier to fuck up aesthetically, that's why they're usually excluded.

I don't know why but the sound of that hammer breaking the samples was so satisfying . I could listen to that all day.

Super - sitting in my home shop; watched the whole thing!

Awesome video, incredibly informative. The results were a big surprise for me. I definitely thought weave was going to be stronger.

Wow. Excellent job here! That's a really great experiment, and I think it was worth every penny it cost to make. Great job!

Awesome video and test. Reminded me of teaching welding in the lab and teaching Metallurgy in the other lab alongside. In the end Heat soak and input is always greater packing on layers with a weave pattern. Get in and get out, applies with any process and any filler. Multiple hot consistent passes win hands down. We could pass test in all ways with tight, fused metal over slower fancy swipes!

Thankyou, Very good and Scientific Data. I understand a bit better now how internal "soak" temperature can soften welds. The weave up near the top was quite excessive (and I expected inclusions there) but putting more metal down in one pass shows that is NOT better in the long run. The weave went down faster, BUT it was an in-effective weld and may fail in service, (depending on the purpose and specifications for the weld) my boss is always saying that I have to do the job "Faster" but this shows that this is not the "Right" way to do it.

@thomascraig3694

2 жыл бұрын

I hate that. Constantly chirpin' at ya to go faster faster then suddenly you're the one to blame when things fuck up.

Good information to know the next time I'm mig welding with the everlast

damn I was rooting for weaves! very informative, I guess i'm doing stringers from now on.

@tonysevery3684

4 жыл бұрын

Good choice my friend 👍

@carolshawol6699

4 жыл бұрын

You can do em just watch your heat input

@beachboardfan9544

4 жыл бұрын

pgbcredneck Same! 😕

@houstonbigfooter

4 жыл бұрын

Been on a many of jobs and stringer is the way to go.

@MLFranklin

4 жыл бұрын

Yes. Exactly.

Fantastic video, this is the best welding video I’ve seen so far. Thanks so much for doing this !

Thank you for making this video! It was really cool to see the testing.

This vidjiou is a very infomative one. Total awesomeness. I hope you are going to continue comparing these two techniques also with other welding methods. I work in a shipyard, and the vessel structure welders aren't even allowed to weave. Now I can definitely understand why :D In a business where the structural welds will not be visible, the only thing that matters is strength. I salute you!

@Kyrazlan

4 жыл бұрын

looks like we got a fellow AvE viewer in here.

@bugnug5332

Жыл бұрын

@@Kyrazlan AvE would say more like vidjayo

This is really really really good - good round-up of the just about all the basics - of welding, testing and understanding where weld properties come from - and I express this personal opinion from being a trained metallurgist, Ph.D. level scientist whose investigation was welds, and a practicing welder doing structural steelwork.

@deconteesawyer5758

Жыл бұрын

You had me right up to that last bit, (practicing welder doing structural welding).

@RichardSmith-ms6hh

Жыл бұрын

@@deconteesawyer5758 I am a commercial welder, mostly. I frighten most "in suits" types too much. Last weld I did boat hull repair they do 6013 wide-weave, I tried for quick reminder then switched to,7018 stringer. Works well for me. You can reach 150A v-up T-fillet 7018 if you stringer - and I don't believe you can get anywhere near that if you wide-weave (?)

@deconteesawyer5758

Жыл бұрын

@@RichardSmith-ms6hh Prodigious bullshitter mostly. Frightening indeed.

@RichardSmith-ms6hh

Жыл бұрын

@@deconteesawyer5758 This is excellent very objective evaluation. The answer is known, but they are displaying it all for you to see. A truth does not mind being questioned; a lie responds with ferocious anger trying to prevent anyone examining it. These people are surely being most generous inviting a truth to be both questioned and examined.

I've been welding for over45 yrs now. Union Millwright in my younger days, transitioned to union Ironworker. I picked stringers before you tested. We were always taught to run stringers.

I know this is old but, about to lay my first weld ever and have been learning a lot from this channel.

Solid testing. Solid test results. Can't argue with that.

Lab testing is impressive! Thanks gang.

Great video dude! Love the science behind our welds! , However I'm in a structural shop and procedure does not allow weaving do to the sure fact too much room for error to trap slagg

Great video! I never knew how this was done! I've done x rays and bend tests but never these!

My gut expected no significant difference. I've always contended you should use what best suits the situation to give the minimum of 'mistakes' in the process and good gas cover. I always leaned to stringer mostly because it's faster. Learned something here. Thanks!

A great demo. I have gone through this myself at work. Lots of testing and qualification to meet Charpy requirements of the oil sands in Alberta Canada. We even had Lincoln visit us while testing their LA-71 wire to see what we could achieve. Keep in mind everything is thermally stress relieved which makes it harder to achieve. This knowledge is as old as dirt though. Stringer beads reduce heat input but also has a grain refining effect on the previous beads your are welding over. Also take a look at the essential variables table of a code book. They all limit bead width. Basically if you want to weave you need to qualify it.

@charlesmason1278

6 ай бұрын

You said it. When I said it, I got laughed out of the shop because I wasn't carrying any welding certificates. I still knew I was right.

Great video showing the difference in strength and impact toughness between the two welding techniques. More detail of the micros showing grain structure and possibly electron beam micros on the fracture regions for both tensiles and impact specimens would be really interesting.

This is great content! you did a really good job on debunking that myth! Thank you for sharing.

i tent to weave on thinner matarials, and string on thicker material (deeper penetration)

Thank you for an informative video! Too bad you didnt take the x-ray at first to get an overview of the sludge. Eitherway it shows me that i'll need to enhace my welding and do stringers instead. Again; thank you. Greetings from Norway.

This is an unbelievably educational video--thanks for making it!

Great vid. I've never welded in my life nor plan to. I literally knew nothing about welding but after watching your one video I know something about weaves and stringers, tolerances, testing , how the samples are cut and to switch gloves when you switch hands.

@cspanda5370

4 жыл бұрын

So a little tid bit on switching gloves hes wearing 2 different gloves, one is thicker protects from heat more (usually used with stick welding) and the other is thinner (usually used in tig welding) for more fine motor control. In case you didn't know why he was switching gloves when switching hands

Awesome execution on the longest debate in welding history! Love it!

Stringer always stronger then a weave , tighter grain structure

@billymanilli

4 жыл бұрын

@Fester Blats THANOS

Went to welding school in Troy Ohio at Hobart. I loved it!

The age old debate! Great video! Thanks for the insight!

I love the science behind this and the detail to the info, but sometimes I wonder why I watch videos like this when all my welding is just weekend warrior projects lol.

Cool testing never seen it before. I now know what charpy v notch means, it just took 50 years to find that out.

Thank you for this. I am an uncertified welder, mechanic, fabricator, jack of all trade, master of a few. I was taught weave, on everything, I have used both, stringer mainly for vertical and overhead, but weave on everything else. This will change the way I weld a lot. Again, thank you!

@charlesmason1278

6 ай бұрын

You were taught by old school welders who may well have not known better, but stringer is better for strength.

Very good episode!!! Everyone that welds needs to know this!

Worked as a metallurgist apprentice for while doing similar tests at a welding R & D company...I thought everyone knew the weaves were all look... BTW...your buddies at that lab have some nice toys. We focused alot on gas mixes. So fully controlled heat input and ambient. Fully controlled weld instruments and weld metals, fluxes and/or gasses. The weld samples were even prepped at specific sizes. The welder would run root to cap at specs in a tent and the sample was immediately placed in liquid nitrogen. From there a certain amount went into a gas analyzer, some we'd put in epoxy which would freeze the gasses escaping from the weld, and of course we'd use some for the tests conducted in this video, including the acid etching. People love the epoxy. The visual effect of seeing the escaping gas helps even the old welders put something they've been told their whole career exists into reality. Fun stuff. The welding and the testing.

@stevejobs6693

4 жыл бұрын

Is there a term to search to find the offgassing epoxy photos? I'd like to see what that looks like, but Google only shows JB weld 😆

Critical note: On the tensile test, the stringer failed in a ductile manner with the line of failure basically horizontal. On the weave sample, the almost 45 degree line of failure indicates a brittle material. Why? Because ductile materials fail in the tension plane, while brittle materials fail in the shear plane. If you rotate a tiny cross section of a tensile test specimen 45 degrees that is the state of max shear. Look up Mohr's circle if you're curious. I'm actually quite surprised he didn't touch on that. Haven't watched V-notch yet, though.

@paulblasingame

4 жыл бұрын

almost every tensile test will break at a 45 degree angle. if it does not do that it could indicate a premature origin point. in that sample it was probably a massive slag line in the weld near the cap because of the giant weave taken while capping the weld because of lack of penetration. by the time he was welding on the other toe of the weld the puddle had already cooled to the point that he was just piling weld metal on top of the base metal (lack of penetration). it would have been interesting to see a cross section of the weave to check for non fusion near the cap of the weave weld.

I used to work in a mechanical lab. Great knowledge.

I know this is an older video but I just watched it. The controversy over weave vs stringer has been on going probably since Lincoln, Hobart, Miller and Airco started making constant current welding machines. Former CWI/CWE and welding instructor for 31 years. I can say this without a doubt. This is a series of sample coupons done with one process in one position by one welder. Did we conclusively end the debate, as you mentioned "no". The list of variables to determine a conclusion would take multiple videos and an abundance of time. The truth of the matter is, Code dictates essential variables. As a certified welder one follows code. Code does not say you might or you can it says you will and it is law when used in a court room to prove liability. If it calls for no bead to exceed filler metal diameter by more than 4x, you as the welder follows code...not a video. As you mentioned, this is a fun place to start and the piece gave good eye candy if you're a nerdy kinda welder guy who is curious.

Hell yea I learned something, and I didn't even have to pay ya! Thanks. Seriously though, I was surprised that the weave capped out first. Keeping an eye on interpass temps I would've bet that the stringers ran cooler.

Love the science.... thanks so much.....

It's funny watching this. When you first start out all this seems new. I've been in the field now 5years now and it all seems second hand now. Practice makes perfect and it gets easier.

super interesting, i had wondered at the strength of the two types before. but i never expected the difference to be so drastic.

Awesome video! Would you please do one for the other styles of beads, like for the e, triangles etc? It would be nice to see the hierarchy of strength in the different weld bead styles. Thank you for doing this video!

@Welddotcom

Жыл бұрын

Great idea!

Very interesting. You can't beat hard data. I find this stuff fasinating, more please!

@WBush-uc9pe

4 жыл бұрын

Slightly softer data, in the case of weaves...

@mancelprince7426

4 жыл бұрын

@@WBush-uc9pe So funny, I forgot to laugh, Ha Ha...

I never would have guessed it made such a difference.Seems I've been doing it wrong.....Thanks for sharing!

Awesome thank you for this test, had a applicable and practical useful conclusions.

Great video. To understand just how each weld affected the steel, a base line test would be beneficial. Test a sample of an un-welded section of the same material. Keep up the great work.

@weldersandblaster

4 жыл бұрын

I totally agree. A baseline from each coupon was necessary to know the starting point. They measure the end up points, but they don't know how far they deviated from the starting point. So what do they really know?

@pwrovld

4 жыл бұрын

The base metal, A36 in this case, has standardized properties and values. Testing the base metal would only serve the purpose of verifying that the steel mill wasn't cheating.

Good deal, excellent info to have and a classic debate settled.

@forwardedinformation906

4 жыл бұрын

who won

Kick ass video! I love SCIENCE when it disproves EMOTION. Strong work, guys!

I'm impressed. You changed one thing ONLY Measured the differences And came to a clear conclusion. I have to quite weave-welding !

Great video. Welding and Metallurgy 101 stringers are stronger than weaves.

welders can complain all they want but when you are testing you follow the WPS ALWAYS!

@datadavis

4 жыл бұрын

Even when they say 55A for 1" plate?🤣

Fascinating, thank you

Awesome .... More people like you we need ... Some people know how ... But some just can't do it ...

Very informative...but always knew the case for weaving was a no no and has been outlawed in the railways since i can remember over my 30 yr career. The old boys knew there shit no doubt about it!

@user-mt9tn1ni4g

4 жыл бұрын

Lol so what are you welding on on the railways LOL and what type of Steel is it yeah those really guys knew how to turn a one-hour job into 16 hours with overtime LMFAO

@warrenhall8569

2 жыл бұрын

@@user-mt9tn1ni4g I’d do the same if I was trying to feed a family dude

@deconteesawyer5758

Жыл бұрын

@@warrenhall8569 That's what they say about drug dealers and armed robbers in the hood.

@warrenhall8569

Жыл бұрын

@@deconteesawyer5758 if your paid by the hour why rush a job

@deconteesawyer5758

Жыл бұрын

@@warrenhall8569 It is called ethics. No mention of rushing was stated or implied. Fucking off, and malingering on the job certainly were implied. The idea of a fair days pay for a fair day's work flies in the face of the diametrically opposed stance of seniority pay and retention cited. Edit: Folks like you are why they make punching the time clock at either end of the building every fifteen minutes a job requirement to keep you from sleeping on the job as night parking lot watchman.

This is a good video looking at the differences in the weld metal properties. However, why didn't y'all look into side/root/face bend testing? From my understanding, these are common qualification tests.

@Fogyt121

2 жыл бұрын

Those check for porousity, slag inclusions, lack of fusion and such.

I am an amateur hobby welder at best but I can usually get the job done. Thank you for taking the time and burning the probably 5 lbs of wire to demonstrate the difference between Stringers vs Weaves. I would have thought weaves were stronger but you have proven that not to be the case. It's nice to see something scientifically proven verses some guy saying "I've been doing this for 50 years and this is the strongest way" Awesome video and thanks for the valuable information!

great test. thanks!

Less slag entrapment with "stringers" besides none of the contractors I worked for allowed weaving , you would fail the test before if even got bent or X-Rayed . Retired Boilermaker 35yrs field work .

Do it again with 7018 1/8th rod. Everyone seems to weld pipe especially there cap with a wide weave. I run stringers myself. Curious on the differences

I love the "today we are going to piss some people off" comment... In the end, point taken. Great video, thanks.

Thanks for getting to the point. Way too many video creators these days talk for the first 3 minutes without actually covering the content. Manufactures using primarily string welds in production finally makes sense.