2GF CWB Welding Test Bust
HTML-код
- Опубликовано: 22 окт 2024
- The CWB is a structural welding test that is given in Canada. It consists of 4 weld tests with a groove and a filet.
Ready to join the WELDing community? Download the WELD™ app in the Google or Apple stores or Log in online at www.weld.com today! Find welding resources and exclusive or refurbished videos with details to help you get the most out of your learning. Ask questions and let our advisors and community help you out! Check out awesome member discounts through our brand partners and enter to win monthly mystery boxes, listen in on our podcasts and follow our social channels: linktr.ee/Weld...
Disclaimer: As an Affiliate and Industry Influencer, Weld.com earns from qualifying purchases via our posted links and affiliate links. Videos produced and made available by Weld.com or any of its affiliates, subsidiaries, or representatives (collectively, "Weld.com") are provided for informational purposes only. Although every effort has been made to provide the most accurate and useful information from sources believed to be reliable, no warranty, expressed or implied, is made regarding accuracy, adequacy, completeness, legality, reliability, or usefulness of any information. As tools, products, materials, equipment, techniques, and applicable laws, regulations and ordinances are constantly changing, Weld.com cannot and does not assume any responsibility or liability for the accuracy of the information contained herein. Under no circumstances shall Weld.com be responsible or liable in any way for any content, including but not limited to death, injury, errors or omissions in the content, or for any loss or damage of any kind incurred as a result of any content communicated in a video, on a website or by other means, whether displayed by Weld.com, or a third party in its original or a modified form. All content is subject to Weld.com and any third party's applicable terms and policies. Carefully review all terms and policies.
ALWAYS USE CAUTION WHEN UTILIZING ANY DISPLAYED TOOLS, EQUIPMENT, TECHNIQUES OR PROCESSES. IF EVER IN DOUBT, CONSULT A LICENSED PROFESSIONAL. ANY RELIANCE ON THE PRESENTED INFORMATION IS STRICTLY AT THE VIEWERS OWN RISK. EACH VIEWER EXPRESSLY AND VOLUNTARILY ASSUMES ANY AND ALL RISKS INCLUDING, BUT NOT LIMITED TO, DEATH, DISABILITY, AND/OR SERIOUS PHYSICAL INJURY RELATED TO THE USAGE OF ANY TOOLS, EQUIPMENT OR TECHNIQUES OR PROCESSES IN THE PRESENTED CONTENT. IN THE EVENT OF AN INJURY IMMEDIATELY SEEK MEDICAL ATTENTION.
thanks for keeping the errors in there, its how we all learn 💪
Loving the CWB series Jason. Also love seeing the mistakes. That's how we learn 🙌
Not proud of it but hey, I learned what not to do and hopefully the viewers did too.
@@jasonbecker3362 i truly miss you on here!! You need to come back
Good stuff Jason, in my somewhere around 40 years of welding I always found horizontal grooves to be the hardest to get right for me no matter what process I use. Especially where the root is open, which happens frequently in repair work where there is no access to the back side.
I do want to note, that even after all these years it amazes me how little I actually know. Things change, new processes and ideas come up, things I never experienced in years past etc...I still learn everyday. Now I am trying to master the TIG welder.... with beat up hands that don't seem to work well anymore and deteriorating eyesight it's a daunting challenge. But like you say. Try to make every weld better than your last and that I do! Cheers and keep up the good work.
It’s funny that you mentioned that about horizontal groove welds. I’ve only been welding for a few years, but I was thinking the exact same thing while watching this. I personally haven’t done a lot of testing, but just based on what I’ve been able to learn so far, it definitely seems more challenging for me to stack my passes strategically in the 2G Position and to get a good clean tie-in to the upper member every time. Considering the work angle, arc stream, gravity, and the way that slag floats to the top of the puddle (in slag-producing processes), it makes sense that we might see more opportunity for defects compared to other positions. It’s an interesting subject. I’m inspired to do some more 2G open root practice with 6010 & 7018 now!
Learn more from failures than successes
A Fail is only a failure if you don't learn how to make it a success next time.
Just learning how to weld and teaching myself. Nowhere near trying to be certified for that. Good tips just to learn about how to lay beads down. Also what to do if you get stuck. Take the stinger off. Good things to know for beginner like me.
Are you still welding?
thank you for not hiding your mistakes and keeping it honest, I learn form it all !
Glad to watch CWB test what I went through recently on your channel !
About this 2GR test, I have some experience with the 2GR position and might be able to add some insight to the process. As I've run test booths for a number of years, one gets a very solid understanding of what it takes to pass a test for this or really any position. Seeing the hundreds or even thousands of coupons x-rayed, bent, notched or pulled tells you exactly what you can get away with and what you can't. That said I'll give you a critique designed to improve and pass next time. And first off you can weld- you have good control of the rod and your basics are in - that's easy to see.
1. The number one reason for failure as observed in many welders (thousands) is the planning or the layout of each and every bead you run. I've been saying this for years; "the outcome of a weld (the product) is directly proportional to the 'timely' planning of that weld." Plan your beads before you start and know exactly where you'll be placing each and every pass.
2. The lack of fusion in the root just beyond the tie-in in the first pass was due to a bit too much time (and too much metal deposited) in the root area which you had to go back over after you neatly wrapped the tie-in then deadheaded into the now cooler metal and this is going to suck up badly needed heat required to penetrate the parent metal which in this case is the backing plate and the lower plate. That resulted in a 7/32" lack of fusion which showed itself with the root bend and it's notable that an x-ray will often pick up lack of fusion as well and will show up as a thin line on the film. On the other side you may have gotten by with an x-ray on this one. I know this as it has been common to x-ray the coupon and then do a root bend. The x-ray can miss the small LOF and the root bend will show it right up.
Here's the most successful handling for this problem encountered by welders that passed thru my test booth; You were welding L to R so you strike up from R to L and pull up to the crater as you call it, I call it a stop, and you time it so that you arrive at the stop just as you establish full control of the rod and arc, you do a "C" shaped loop to fill and move on and right over the arc strike you left in the root about 1.5 seconds ago. And I don't care what you left there as long as it's not too much metal deposited earlier, porosity, slag, just pure garbage will clean out nicely. Testing shows this to be the correct handling for LOF issues. (of this sort)
And as I'm going long here anyway, to finish up on planning out the beads for this coupon, I most likely would have had 8 passes to your 7 passes as I like to get closer to the edge of the plates both bottom and especially the top.
Here's my reasoning: On the bottom I want to always leave the plate line which is going to be my guide for the first pass of the cap to keep it nice and straight. This will set up the next 2 or 3 passes and make a very good looking cap. On the cap I normally run a bit smaller bead and stack as tight as I need to in order to come out with the last bead being the smallest bead of all right at the top where it wants to undercut. The extra pass would be inside and this fills as close a possible to the edge of the plate without covering it up at the line then I can run the smaller beads for the cover passes.
That's pretty much all there is to that test.
2FG is in my opinion the hardest to pass most of us in my class have at least gone through 3 test plates before passing then we’re made to pass another just to make sure it wasn’t a fluke, keep em coming man! I love the CWB series!
Finish school?
@@mrillis9259 ya! 😅
@@dylanryan7240 how was it, on a job yet? im in class right now
Hi! I love your videos! You explain things in great detail, I just wanted to reach out about this video, I worked for CWB as an inspector and according to W47.1 in section 9.4.3.3
There shall be one stop and restart in the root pass of each weld in the locations indicated in Figures 8, 9, and 12, and in the root pass of the fillet weld in the location indicated in Figures 8 and 9 if the joint configuration in Option 1 is used. (we use figure 8 (one fillet, one groove)
That being said the 2GF is in fact required to do a stop and start on the fillet side if indicated by the inspector, most inspectors don't ask for it as it is covered in the flat (1GF) position, but I do tell my students to always practice it just incase the inspector asks for it. Better safe than sorry! :)
Keep up the amazing work!! I always recommend you to my students!!
Soo much respect for the honesty. It could not have been easy to post this. Maybe you could revisit this test and show us the mistake(s) to avoid.
Once again. Much respect for the openness
From a CWB welder (from Canada) there's no limit on how many fillers you can put in. For me I've always run 3 bead root pass (square face then bevel and run a bead to tie both sides in never had a faill). A tip I can give you is on your cap passes turn your amps down from about 125 down to 120 if you weld with that heat.
1. I knew as soon as I saw that restart on the incorrect side and how it started up that it was not going to pass, at least based on the footage.
2. Horizontal is the hardest imho for getting enough weld material at each end of the plate (A trick some use, is to wrap your welds around the corner to help fill/maintain height)
3. Undercut on the final cap bead is very common.
4. I feel like the camera guy might have been calling you out off camera, giving you some of the business, to make the extended cut of "Own your mistakes"
5. I would love to see a restart of this test.
6. I want to see Red and Mancub compete on who does better in all 4 positions for these CWB tests.
7. Great work and greak video!
Hey! Wanted to thank you guys for the super helpful and informative videos, been taking welding classes though high school, graduated a couple months back and just got word I passed my 3G weld test and I'm excited to enter the field and hopefully land a job soon. Keep up the good stuff man, you guys rock!
Good luck on your new endeavors. Thanks for watching.
@@jasonbecker3362 thank you sir 👍🏻
I wish everyone making welding test video on RUclips be as honest as you show. Everyday you have something to learn no matter the number of years of experience. Mistakes are part of the journey. I've followed your channel since I was at welding School, and I like this video more. Thanks!
Thanks for the words on getting the electrode stuck. I was getting super frustrated in my booth because I kept sticking.
It will happen and sometimes you might leave an ugly mark, but you can fix it. Remain calm and welding becomes so satisfying some people have ASMR videos on it.
I've been welding since I was 14 years old I'm 38 now my dad had me in a shop at the power plant I worked at First Tool I ever used was a cutting torch I had my 6G at 17 that sound of bacon sizzling you know you got good Heat got good Heat one of the old guys that used to teach me growing up tell me to remember the word hash heat angle speed and height needless to say he was a pothead like nothing I've ever seen before good job brother
This is Marc from winter peg Manitoba, I really respect your honesty and integrity. learn lot from you.
I want to say good on you owning that LOF.. Even "practice" is still treated like a critical weld and doesn't always work. My 3G sucks major eggs but can't get better wihout melting metal.
Great work Jason! I teach welding up in Canada and deal a lot with the CWB’S obviously. If you go back through your video, you can see where you had your stop start and reignited the rod you came back too slow and welded though the slag. Also, rod angle is critical on this weld. Too flat and you’ll get LOF. We test welders on the CWB’S quite often and the most common failure is on the 1GF believe or not. Because of this, they don’t qualify for any other position even if they pass them unless they retest the flat. These videos are awesome and I’ve been sharing them with my students!
yes we all have failed it makes us better even though it can get exspensive to keep re-testing practice before hand and we will all be better for it thanks Jason great attitude and yes we all need to owen our failers and reap the rewards of our accomplishments.
Tie ins are usually the culprit in tests that go badly. Good you demonstrated exactly that in your bend test. This video is a great learning tool for folks that are learning. I think you covered this test quite nicely pointing out the areas in the welds that are particularly important to achieve quality welds. I usually run pretty hot on the root passes then adjust accordingly.
You guys are awesome. We can all be better, and there’s always more to learn. As a current student, I appreciate you guys!
I am practicing for CWB now, really appreciate this video series, cheers.
Great video Jason! Couple pointers for those going for their certification.
Perform your stop start first. Once your tie in has been checked by the inspector, lay in a hot and heavy pass on your square side to try and eat up as much of your stop start as possible.
I would always prefer to go a bit over the 1/8” reinforcement rule in a spot rather than terminate a half pass to fill a low spot before capping. Inspectors in my experience are more lenient with their measurements before the bend.
Excellent teacher!! Thanks for share 👍
Ungh. I've done the cwb twice for 7018, all position. Makes for a long day lol. Wasn't as bad as testing for railcar repair though. We had a stainless to black on the flat in there as well as a straight overhead mig test.
The mig one was horrible. Had to do that part three times 😅. The rest were relatively easy.
Great video on the Canadian weld test.
Wouldn't mind taking the Canadian test. Just to get it done. AWS certified. Just another notch
Not really worth it unless you work in a CWB shop. Otherwise the lapse quickly. You don't keep them forever just by using the process like AWS. Even if you use the process all the time in a CWB shop you still have to check test every 2 years.
Most appreciated teaching, learning a lot and enjoying it very much.
Please do a video where you re-take this test....and pass. Perhaps include doing a section and etch through the failure point to gain further insight on what happened. I'm not a welder myself, but an aerospace engineer. No matter how good the design, it takes skilled labor to turn those drawings into reality out on the tarmac. I really enjoy channels such as this one that focus on the skills of the master craftsman.
2:20 thats why here in canuckland we call it the 2G, the reason is because since youve already tested for your 1gf, you already have that qualification. Since even though its tacked in horizontal, its still the same fillet essentially. So youre really just testing that groove
thanks, most welders keep skill to themselfs, been in it since 86 still learning but i laser too
Just a tip for anyone taking a plate test.. run a fourth pass on your cap. Only putting three beads doesn’t really cover the shoulder too much, mainly just fuses and its a thin line of fusion at that. The fuller metal wants to droop and sag due to gravity so the material you think you’re adding over your shoulder is really falling back down onto you’re previous bead. That leaves you with a very thin line of fusion and more possibility for undercut. A fourth pass ensures you have the same amount of material over your top shoulder as you do on your bottom shoulder. Also hold a tighter arc than usual to help prevent undercut and point downward very slightly in stead of upward.
Great video! One of the more interesting puddle shots was from about 7:50 to 8:30, being an end-on view. Nice to see the rod and puddle working down the groove.
Thanks very much for your support. Loving this series. Awesome. (Andrew NYC).
The CWB tests are toouugghhh compared to the tests here in the states I'm used to. Failed my first one, thankfully nailed the second one. Gotta nail those restarts
Do you self a favor and kill the Arc force and Hot start, if used, and drag the rod! I was instructed by my CWB tester to do it. He said it leads to better penetration and a better weld. I have been CWB certified for over 15 years, trust me it works.
Awesome that you show when things don’t go perfect!
Hopefully a helpful tip, the first square side pass aim more for the backing plate, hit the square but more so on the back, then you have a better landing for your groove side, basically 20 degrees to the plate for for square, then aim at the groove side and burn that edge.. as mentioned, try to keep the two passes flat so your cap comes out with no issues.. hope this helps
By the way good video been welding professionally over 35years
I had to do a test similar when I was trying to get on with Union Pacific. A little different but not much. 3/4” plate. Square bottom piece, top piece 45* bevel. Pretty sure it was 1/4 gap with 1/4 back strap. Stuck, MIG, and flux core. This was the only one I struggled with all 3 processes
Good times! Yeah there was some big slag on the root restart. I was worried just seeing it. Benefit of the close camera view from an angle unimpeded by ‘stuff’. So ‘easy’ to see while watching after the fact. Also when you give us the primer that there was a failure.
Now I just need to apply the physical from the mental. I can watch this all day, curious how I don’t improve without doing it though...
This is a lot of good info for a canada that is just starting welding . For me this is what I am working to do by next fall
Awsome video thanks I’m busy studying for welding and you guys help a lot
I am so excited to do Flux Core and Smaw for CWB
Horizontal tests are not as easy as one would think. I would usually pass my 3G and 4G tests fine. Almost all failed tests for me were when they gave the the 2 G test. Even though passing a 3 G and 4G test qualifies for a 2G per AWS, some companies give the 2 G test for that reason. Great job anyway with your stringer bead placement.
Key to this testing.
Remember how your gonna cut it up, so bending means you don't need to worry about the root of the cap or the caps of the roots.
So start an stop accordingly an plan ahead.
I really love this site, I'm subscribed. An aside here, the other day I was watching a YT of a pipeliner welding some large diameter pipe and he wasn't talking for about 30 minutes so you just hear the crackle of the rod and as I was working on some proposals it was more background than anything but I finally realized just how good I was feeling and I started laughing at just how much I enjoyed welding which is not unlike the Dude laying on that rug that tied in the room so well listening to bowling on a headset.
It's not too far fetched to think that maybe I should be selling recordings of welding for welders that can't get to sleep and at bedtime they can just put on their favorite welding process, maybe its wire feed sounds or the softer crackle of 7018 or maybe the hum of Tig on an open root. I should probably do a survey to find out what's the most popular sound for a welder that needs a bit of soothing music to their ears. Any ideas out there?
d
I agree, I learn from your effort
Thanks for sharing Jason ! Great Lesson Pleas keep the videos coming
Lack of penetration on stop and start was due to your starting to far ahead of the original stop.
I noticed it as you started again.
👍
Very good video my friend!
I am 6G SMAW welder, 6G GTAW / SMAW, 6GR SMAW, 6GR FCAW-SS. have never done CWB test.
nice, love the honesty man, thanks!
Awesome video thanks for the confidence really needed it. Lol 😂 love ur saying make it better than ur last awesome guy
On the 2gf test, your're allowed to run the square edge in one pass. The reason for this is that they consider it a 1F position which you already are qualified to do if your welding the 2GF test
Exactly. And it should be FG not GF as you weld the fillet first, then weld the groove.
Thanks for the honest show.
The cwb test requires a stop start on both the square edge and beveled edge 1.5 inches in on opposite sides of the cupon for the root bends. And the face bend is done in the center of the cupon
That's true for all positions except horizontal
2GF CWB ,the root pass is done in only one pass and not two .the joint spacing is 8 mm.which is meant all three plates should bee joint in only one pass for the root
So this is where my weird metal clamps come from.
I found those U shaped metal clamps on a flex market once, and it's now clear that it was made from those..
Basically a U shaped thick metal plate, a nut welded on it that add some thread, and bolt with a tube welded perpendicular to it for than handle...
Much respect for owning your mistakes. Would love to see this re-done, and go through what you do differently. And as mentioned by someone else here, maybe a look at ManCub -vs- RedBeard (-vs- CameraGuy? ) for different approaches to the same test?
Camera guy wouldn't want to embarrass the "talent" 🤷♂️😂
The exact same thing happened to me today, 2 good bends and the last had a small lack of fusion over 1/8.
Just going to say that on the bevel side. I just passed my 2g position last week.
can you guys please make a video on what and how is the best way to washout the backing strip. please and thank you!
Ived noticed inverter's in particular when doing horizontal plates on the cap if you have to much of an angle pointing up so your bead doesn't droop down it wants to cut out and stick I've only experienced this with inverter's not transformers
How come you didn't show the 2nd pass ? U went from 1st to 3rd
I've always been told the CWB is one of the toughest in the world. You get these tickets you can likely work anywhere in the world.
When you cut it into strips, do you grind the backing plate off completely? Seems pretty thick backing strip for that. Thx.
If you called the inspector over with the start/stop on the wrong side as you did, is that enough to bust or will he let you continue and perhaps just look at your work more closely from that point on?
Thanks.
You learn way more from mistakes than any other way. One thing you can do to give you a better fighting edge, is to tilt your plate 15 degrees as it allows you in the CSA W47.1. This will greatly improve your visibility and manipulation of the puddle, as you weld the beveled edge. It will also make it easier to produce equal legs on the square side. Once you run your first pass, I like to only see a 1/8" to a 1/16" of backer showing for the second pass. Anything larger would indicate too small of a first pass.
I thought about that. I know there is a tolerance with AWS to tilt the plate but it wasn’t mentioned in the document we used for the CWB test.
@@jasonbecker3362 you are allowed 15 degrees in vertical up and in overhead both sides. Its key to see the puddle. You don't have to but it's way harder I think.
Chris R good to know thanks for the heads up.
@@jasonbecker3362 any time, bud 👊🍻👨🏭
First of all, love your videos. Could you do a video on CWB 2gf GMAW with settings?
You did great and it happens. You can’t always control the steel the welds looked good.
I kinda wish you had shown the second pass since it's the most important pass in this test.
Tell it, Professor Redbeard!
✊
Chances are you had minor lack of fusion on your stop and start. I did notice that when you restarted the first pass, something of a hump showed up at 2:04 in the video. I am a welder in Canada and hold a horizontal stick ticket. These are not easy to pass.
Go for a walk before your final cap, an you will eliminate the upper undercut to within tolerances of CWB.
Time of walk undetermined.
Adjust for the bevel burning down into your puddle with FC, and you should do well, it's the bevel that you need to catch for this one.
Question , did you clean the first weld with first stop and restarted..clean ?
Awesome video.
Great video,
Sucks to bust a test but any of us who weld for a living has at least one failed weld and those of us who have to take weld tests have at least one failed test.
Where would I look to find the material specs for this test?
Plate size, thickness, bevel angle, and bend radius?
I think it would be fun to try it.
One thing for advice is do NOT remove it from its position for inspection. Tell your inspector that your plate is ready to be looked over and he/she should come to your booth or station. Seen too many guys fail because of that simple mistake.
Polished off the numbers an stamps, see a guy do it
When you restarted, it looked like you had some slag solidify in front of your puddle that didn’t completely burn out, I wonder if that’s where that indication came from?
Thanks for sharing and keeping mistakes and all in the video. Great teachers aren't afraid to make mistakes ;)
Did you have power fluctuations while making that weld, I thought the arc varied a little. I worked at one time where there was a grin dryer next door and come harvest time every now and then as the thermostat on the dryer switched in or out there was a massive variation in the power enough to sometimes extinguish the arc or cause a blow through if the power went up.
Could you do a video on a AC stick welding?
I tried with DC, it makes pores as fuk lol
ruclips.net/video/5C6vy6mOutc/видео.html
Looked like a good weld to me, but a tight gap with anything bigger than 3-32 rod can get tricky.
I'm quite certain that its just a 2G, the groove that's preped is called a bevel groove
Great video thanks.
Question concerning the test. Are there any Canadian companies that do business in the USA that require you to take these test or are they only issued in Canada? Would hate to have to drive to Canada just to have that certification...LOL
I prefer these test over double bevel there faster the key is to get that 90 degree side root in there well
If your rod sticks, DO NOT OPEN YOUR STINGER CLAMP!!!
It will arc and burn up your bronze pads, and after a few arcs, your stinger won't hold the electrodes.
Instead, pull straight back sharply and quickly while relieving some of the spring tension with your hand.
This minimalizeis the arc and directs it to the side of the contact pad, instead of one the face.
If you buy your own tools, this will save you time and money😉
Some welds go perfect, some welds we learn from.
Is he or are you pushing or pulling or are you just straight in there i see the angle up and doqn but can tell it looks like your pushing let me know brother
Sometimes those inverters run ruff and the arc is too soft therefore getting lack of fusion I've experienced this before
What’s the purpose of this test with a back bar?
It's makes no sense
It’s a structural ticket, no need for a back grind/full pen
Thanks for sharing I still think you are a great welder👍
I think your beard blushed at the end.
Do u have a videos for mig
What type of electrodes do you use?
Someone is right. One who does not make mistakes does not learn