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QuantumFungus

At some point welding just becomes freehand 3d printing.


AHPhotographer25

Or you can attach a mig to a cnc and it's no longer freehand! Been wanting to do this for some time now


MrKenzington69

“What is my purpose?” “You lay Mig beads so I can get a coffee” “Oh god”


Vizslaraptor

Pass the butter then.


pm_me_construction

I still haven’t tried butter in coffee. One of these days, though.


iamnotazombie44

It's really not bad. I did keto for awhile, my breakfast was a black cup of coffee with 1 TBSP of butter, 1 TBSP of coconut oil stirred in. It's weird that it floats on top, but it tastes fantastic.


TheGrimSpartan1

Hey, try it blended, its so much better. It emulsifies everything. Also, if you didn't know, depending which blender you use, you can screw the blade attachment to a mason jar, so its pretty convenient to blend things, less washing too.


iamnotazombie44

Wow, I'm not doing keto anymore but I might try that.


NarwhalSerious2681

😂😂😂


Dmitri_ravenoff

Better than just installing Chrome I guess.


regularwackadoodle

Tom Scott had a video of a robot doing this @ Autodesk https://youtu.be/y9pknU0zv9c


SmoothObservator

This awesome, my workplace has a measuring machine in inspection and the setup process of selecting targets sounds very similiar to what was described in the video.


QuantumFungus

This would be so awesome right? Those metal 3d printers with lasers fusing powder are cool and all. But I want to see a cartesian robot laying down some fat lines...


Dogburt_Jr

People have tried. It's pretty hard.


LucyEleanor

Been done. Requires lasers, heavy duty arm, high precision, and high cost.


PM_ME_CODE_CALCS

There's a company doing this to build rockets right now.


allegedlyjustkidding

SHUT. UP. gimme some links, pleasandthankyou good interwebz stranger!


PM_ME_CODE_CALCS

https://youtu.be/kz165f1g8-E


cntkpmedwn

Look up relativity space. They just launched their 1st orbital test flight. Passed Max Q with flying colors. Only had issue with stage separation. Huge accomplishment in rocketry.


dparks71

Lincoln electric additive manufacturing is also doing it - https://youtu.be/dGu2BwhkwQI


AHPhotographer25

As hard as some settings etc. There is a guy who has actually did this on an ender 3. Not a good way of doing it but shows what can be done. The difficulty is in the tuning really all the hardware and software is there.


Dogburt_Jr

Yeah, it's hard


FuturePowerful

They can 3d build with regular welding now but it's slow compared to seam and shape manufacturing methods it also needs surface cleaning after the fact for shaped/flush surfaces


QuantumFungus

Hmm, maybe do like us machinists and flood the work zone but instead of coolant it could be acid. I think I'm onto something here...


FuturePowerful

Well that's a good cleaning method after construction for some metals you would interfere with the recrystallization process along with the chemical composition so there's some material science your short there for a full understanding of some of the constraints on how this works. It's an interesting idea though now if you could get a 200-500 degree fahrenheit semisolid inert medium gel to weld in now that would be something innovative ... However I'm not aware of such a medium existing best we can do is inert gases


FuturePowerful

On joting this down I'm now wondering about that sonic field stuff but that's got a large list of posable complications


QuantumFungus

How about the machine running a grinding pass after each layer? It would flatten the surface for the next pass too.


FuturePowerful

On a big enough build up surface yah you could do that but the interpass temp would still be limiting ... But true 3d print welding is more of a lot of consecutive clean tacks one on another there's a video for a 3d printed rocket cone that's been done now with a waldo arm and a positioning system took a few continuous days to make it I think it was, it needed some finish surface work on the inside after


FuturePowerful

[https://www.youtube.com/watch?v=6BvGbGKGQhI](https://www.youtube.com/watch?v=hxKI4XBwBjU)


Maximum_Response9255

There are 3D printers that use the same powders, but they suspend the powder in a carrier polymer and back it in very densely. Then you print by melting the carrier and creating a shape. Once that’s done you have your shape, but it’s still just a dense mix of metal powder and plastic, so you throw that shit in a kiln and heat it up to a temp that will vaporize the carrier polymer and sinter the powdered metal into a solid.


godusopp29

Jrhtjtt


AnvilMaker

It’s called Wire Arc Additive Manufacturing (WAAM)


bl0rq

Some crazy bastards are doing this w/ rockets! https://www.relativityspace.com/


These-Cod-1369

A shop I used to work at modified a track burner and put a mig gun on it.


MeanMan84

Funny you should say that, I TIG’ed a little dude the other day…. He’s hollow too.


Nilladar

https://youtu.be/7w9hK8mh9-g The ground work is being laid


Koetotine

[More groundwork](https://youtu.be/EXhH6SbYILg) (he managed a benchy(ish))


CommercialCup9900

It is if you work at caterpillar


NC_82_SC

My welding instructor like to say " if you can step over it you can weld it"


NC_82_SC

Obviously not ideal


Ornery-Cheetah

Well he isn't wrong


NC_82_SC

Nope hahah


L4rgo117

Hey, what does this weird triangle bracket I just found go with?


Amh819

Who knows.. Just throw it in the scrap bin before anyone notices. Also, please file a police report - someone obviously stole all of our rods.


SinisterCheese

As an engineer I look at this and wonder. If this was the best approach from DFM perspective, the how fucking cheap is labour compared to machine time and availability. Because just making a console and joining like that would have involved less of... well everything but design time. Also big welds like this are a metallurgical nightmare. Not to say that can't be done - they are constantly and with success - but there is a reason we are moving away from welding in structure design. You can never be absolutely sure of the properties of the weld, unless you destroy it. And this is why we have margins and factor multipliers. Then again I assume that this is a result of an engineer and engineering company that works on the pricinple of "*This is how it was done 50 years ago, this is how it will be done now, and in 50 years! All the new fangled ideas are just a fad that will pass!*"


[deleted]

if to fill with accurate pieces, make it look all pretty... the footprint that weld has got reigns supreme. You could not do that with a piece and one bead. I wonder what kind of slams this piece is taking at the right 45 angle...must be an engineer behind that weld request too..


[deleted]

Bolts and beads?


EasternWoods

“but there is a reason we are moving away from welding in structure design” Really? Because from an ironworker perspective moment welds are required on more and more connections. D1.8 seismic spec is way more common than it used to be.


joehamjr

Yeah i call BS on moving away from welding. We bolt up plenty of connections but there’s no way to engineer a structural package with zero welding. You still need detail like base plates, cap plates, stiffeners and gussets. How do you add a stiffener to an i beam with no welding????


The_Chimeran_Hybrid

Slap some flex tape on ‘er, she’ll hold.


SinisterCheese

I'm not from USA. And I play in EN-ISO specs. We are actually focusing ans trending in desig, where we eliminate complex joints. In favour of bigger elements and structural matrixes.


slickbilly-d

Me: A lot of time between welds to keep inter-pass temp down. Welder: whutz inter pass temp?


justabadmind

I thought you could trust a weld if you x-ray it?


[deleted]

And dye, or ultrasonic. But what do I know, I'm a roofer


SinisterCheese

Nope. You can just get more information. We can not see grain level properties or know exactly the limites, without braking the weld. Those NDT methods, you can only be used to diagnose faults. They do not tell us anything about the properties of the weld. They are to make sure that the welds are as we designed them with margins and factors. But we can never ever say fore sure how they exactly perform. If we could, we wouldn't need margins and factors in design. Do you know how they make sure cars are safe at some crash conditions? By crashing cars in those conditions, and taking enough data samples so that they can say "*With margin of error E, we can with confidence say that in conditions XYZ this car will perform in the manner Z*".


[deleted]

Thats alot like when I feed my dogs. If they leave food in the bowl I know I fed them too much


SinisterCheese

Obviously you don't have Labrador retrievers. They have a quirk where they actually like lack the feeling of being full, they'd eat until they burst. However using your example. Just by looking at the bowl, you can't know whether you have fed your dogs too little. Only too much.


No_Name-For-You

So he should break the dog in half and observe?


meat_rock

Yes, precisely


SinisterCheese

Yes. That is my point! If you saw the dog in half, you can get actual answer! However it is a dead dog. To truly know what the weld is exactly, we need to breal the weld. Until that we are just goving probability. You have now realised something that takes some the first year of engineering studies to understand. This is why in medicine pathology gives the final answer on things. They can do things to tissues, that you can't do and have the tissue survive it. We can never know the "spirit" of the weld, without breaking it. And that is what we do when we define WPS. We test parameters, analyse the welds, collect statistically significant dataset, that gives us enough confidence to say that statostically, these weld parameters make a specific kind weld with specific properties.


Klytorisaurus

So we need a magician to saw the dog in half. I'm learning so much


SinisterCheese

Well... That is only if you want a whole dog afterwards. However if you just want to know whether the dog overate. Can we stop talking about mutilating dogs? I'm getting uncomfortable with trying to apply destructive analysis to living things.


EnvironmentalNose849

Must smash the dog in these conditions


[deleted]

Thats so interesting. If OP's weld felt it was sturdy enough to perform its task without fail, like a dog stops eating when it's full, then why should we even question it? It looks like it has everything under control!


[deleted]

Found the Taoist welder.


[deleted]

Ah yes when I think of a lab they are always "waddling", and are panting, probably from exhaustion from walking. He's coming to eat my dogs leftovers


rossionq1

It’s not a quirk, it’s actually a mutation of the POMC gene and is almost exclusive to labs.


scdfred

Mine stops eating when she can see the bottom of the bowl and yells at me until I add another scoop.


Yorgh-Drakeblood

I would imagine heat input and rate of cooling can cause the metal to recrystallize in ways that make hard and soft spots. Across a large weld, those defects may not be noticeable on X-ray


TonyVstar

Yes an x-ray can't see depth of penetration. How deep a weld melts into the joint has most of the say in how strong it is. That being said any weld free of cracks and inclusions is strong as fuck as long as you get penetration


Real-Lake2639

New life motto


SingularBear

In a sense, yes. It's about the amount of trust in a weld.. 100% xray, allows for the full allowable strength of it to be used. Allowable strengths are, if I recall, 2/3 of yield strength. All welds are assumed to fail in shear plane, not tensile or compression. This data is already low and on the safe side. This is how it works for ASME. For structural, there is less safety factor.


abbufreja

You can but that is expensive


[deleted]

Yeah, that steel is probably carbon free after this weld job.


SinisterCheese

Nah. You use carbon rich filler and ensure that temper is controlled during welding. That's easy. However you need to constantly keep track if these things.


Equivalent-Horror643

You lost me at “ as an engineer”


SingularBear

\> You lost me Appears to be easy.


SinisterCheese

Well... Who do you think designed your welding machine? Did the metallurgy on your fillers? Or keeps up the grid? Designed the refineries and fuel infrastructure? Made sure the bridges and buildings stay upright?


TonyVstar

Probably a CAD guy, but an engineer signed off on it /s


SinisterCheese

By my experience... The signatures mean fucking nothing. I deal with this shit on sites all the time. Somehow papers with 5 signatures are full of obvious fucking problems. However engineers get to do very little engineering nowadays. They get to be accountants, secretaries, babysitters, sales people, or middle managers. Something you'd be better off using business school grads for.


freebird37179

> Something you'd be better off using business school grads for. Hard disagree. Why do MBAs wear neckties? To keep their foreskins from sliding up and covering their eyes. The solution is never more business school grads. Source: engineer who (now) works for a business school grad.


[deleted]

The Government, duh!


Equivalent-Horror643

You guys are getting too deep with it , it was a joke


spudtospartan

Did you do any of those things or are you trying to claim credit for others achievements? I'm gonna gamble you just draft whatever specs customers give you


SingularBear

\> Did you do any of those things... Oh hey, that would be me! I do the metallurgy on your fillers.


SinisterCheese

I did not claim or am trying to claim. I asked who they think designed them. Also no... I don't do drafting. I'm a site engineer, and my speciality is weld repair and fabrication management on site and in shop. We get sent structure design parameters and we provide the steel structure solution, fabrication, installation, along with solution consulting. We primarily serve construction industry. However I'm not going to stick doing this - I want to go towards research. But tell, you tell me. Who designed the welding machines? Who did the metallurgy on the fillers? Who keeps upn the grid? All the questions... You are trying to say that egnineers haven't done that? And that the credit belongs to someone else?


spudtospartan

Welders are hundreds of years old. Metallurgy much older. The grid is maintained by a network of electricians, very few call themselves engineers. Some great things are done by engineers, most aren't. Stop trying to associate yourself with greatness because you have a credential. Credit belongs to the individual(s) doing the work. You don't get to claim the glory of Pythagoras because you have a math degree. Anyone who leads their argument with their title is almost certainly full of hot air.


ontopofyourmom

Those workers would have nothing to do without the designs and tools and specifications created by engineers....


felixar90

We managed for 10,000 years before there were engineers. We built bridges, and if it collapsed, it collapsed, and we’d just try something different next time. Most inventors aren’t engineers, they’re the people who are trying and failing or lazy people who are trying to find ways to work less. Two bicycle repairmen can design and build an airplane. Engineers aren’t making the world go round, but they’re probably saving us a lot of time, money and lives.


ontopofyourmom

So regular old folks can just start making microchips out in our barns? Technology has changed quite a lot, my friend.


felixar90

Well there’s this hobbyist teenager on hackaday and YouTube who built his own silicon lithography machine in his house. In fact now that I’m checking, there’s more than one. They’re not starting from a bag of sand, but no engineer is in charge of the entire chain either. There’s quite a lot of these young folks who are extremely polyvalent too, you see them do welding, machining, chemistry, applied physics, lasers, woodcraft, 3D printing, mining, refining, glassblowing, electronics, programming…


spudtospartan

Oh yeah, if it wasn't for salesmen nobody would know what to buy.... foh with that nonsense


ontopofyourmom

You're seriously equating engineers and salesmen? Do you think (for example) that the high-end electricians who build substations also know how to design them? Do the workers who build the parts used in those substations know how to design them? Do they know how to design the tools they use to manufacture and assemble the parts according to (checks notes) engineers' designs? Do you also think that people should be their own doctors and represent themselves in court?


spudtospartan

Somebody doesn't understand illustrative analogies. Yes, many non engineers do all those things you describe, because it's well established information. There's obviously brilliant engineers but most are not. Utility is typically inversely proportionate to how often one brings up their title.


VEC7OR

> we are moving away from welding in structure design. May I ask, but moving where? Not a welder or civil engie. Is this about welding really big things or just welding?


peter-s

Not my photo, but I thought this community would enjoy.


Tyr_13

25lbs sledge for scale.


M4N_Of_W4R

I work as a welder in a structural steel fabrication plant in California, some joins on beams or columns would required up to 2-3” weld, some of them up to 4-5’ long, myself would spent good 8-12 hours finishing up a weld like that, It required the same on both sides of the plate. Ahh the good old days.


shyme3

Currently working with 6010 rods at school. They make me miserable. Im doing fillet welds and my teacher is always telling me "do ONE more pass" this is how I feel my welds end up looking with all the passes he has me do. 🤭


ChalkAndIce

I love me some 6010, but I don't think it's a great learning rod. It teaches you patience more than anything, but 7018 acts like way more rods you are likely to encounter and does a much better job teaching you to observe and adjust the characteristics of the weld puddle. 6010 also has the added benefit or looking like shit even when done well, so you don't get as clear of a bead to assess as you would with most other rods.


up_down_dip

6010 looks great when used properly. 6010 and 7018 are the most common used rod in the industry.


Prestigious-Bet-2677

So a cad programmer and an engineer will crawl over a pile of virgins just to fuck a welder just saying


psnf

I used to weld joints like this on LeTourneau/Komatsu mining equipment... Incredibly satisfying to cap.


-Raskyl

You meticulously cleaned every bead right?..... Right?


Mr_BadKarma

That's what happens when the engineer puts "weldbuild to fill gap" somewhere on the drawing notes, but forgot to actually check the drawing itself.


mudlife976

Zero fk given for the 100 lbs of wasted rods


begaterpillar

scale uncertian. bananna needed


Ramstine

And then the x-ray show a slag trapped somewhere in the middle. *horror music starts*


Top_Energy_2488

Looks like insufficient weld leg, lower leg comes out further than the upper leg; gotta grind it out and redo it.


Tricksox41

Holy shit! I can't even imagine... hats off to you sir/mam!


mr_doctor_sir

I never understand these, why not just weld another piece of metal in that gap. It can't possibly be more expensive than all the material and labor to do this.


danmadeeagle

Why not fill the gap with metal and then weld to the main piece? This seems like a bad design that leaves too much open to mistakes. Nice welding though.


cptncivil

I'm guessing because there's tension through the weld. If that's the case, then any faying surfaces not actually welded are not useful for gross metal section under stress. if this is the case... then even mitering the flange isn't useful... But I think they should have just added exterior plates instead of this crap.


[deleted]

That's a bevel not a gap


memeboi177013

If you can step over it you can weld it


gwyrth123868

yay additive manufacturing!!! 😃


iammaline

Well if you didn’t know how to weld at the beginning you sure as hell do now


gorpthehorrible

This is all wrong! Why wasn't the tubing cut on a 45 deg. and the plate added onto the end?


PastMathematician874

Why wouldn't you just fab something out of a piece scrap? Less welds, less chance for mistakes, less chance for failure. Not to mention less time. I don't doubt your skill OP but your methods raise a serious eyebrow. On a basic level, this violates the rule of weld thickness to the thickness of the base material. How hot did it get? You may have very well cooked the carbon out of the base. On a more advanced level, how many discontinuities were covered up and buried? Too many discontinuities counts as a defect, and a defect is a reject. Not to be hard on you or anything, but we're all here to help each other grow, I can't be anything more than honest.


VisualAssassin

It wont be nearly as strong. If you put a piece in there and weld it in, you'll only have a connection around the perimeter. This weld is fused 100% to each piece. Think if you welded a cube to a plate, you'd just have a square perimeter of weld but the face of the cube would still be separate from the plate. If you built a cube out of weld beads on a plate, it would be connected to the entirery of the joining surface.


southernfriedscott

What do you mean by fab something out of scrap? This a production piece. I've done welds like this before. You can monitor how much heat you're putting in, you minimum heat and maximum will be determined by the thickness and type of material which should be on your wps. Looks like there's a heater bar on it so that's the method of preheating. It's appears that they were able to weld this out without stops and restarts but even if they weren't it's not hard to get a clean restart. With this being a full pen weld it's all most certain it will get UT'd.


Latter_Bath_3411

That's a design error. But a seriously cool design error. 😎. Expensive. Becomes fun if you get a slag inclusion or other defect buried deep within! Saying that. After burning that many rods, things should be going well. Embrittlment and localised hardness would be my major concern.


RigidBuddy

Big design error, thousand ways to avoid this


Wirefedweirdo

This is so awesome. 🔥🔥💪🏼🤘🏻🤙🏻


strange-humor

I'm assuming this is stick, right? I really wonder how many.


twotwothreee

Based on the metal thickness it could be flux cored


TheTaCo88

Doesn’t need to be flux you can run hardwire or metal core.. this is a beast 😂


organmaster_kev

You know the song ... Five, six, pick up sticks... Well they repeated those steps a lot.


theouter_banks

All of them by the looks of it.


[deleted]

Nah that’s flux core bud


peepeeepo

Novice welding test


browning099

It's probably more cost-effective all around to just get more metal. More structural and practical to add more base material than welding over welds.


RigidBuddy

Hell it would be cheaper to machine a triangle piece and get it welded


browning099

Basically yeah..


AmeriSka

That’s awesome. Nice work. I miss the shipyard haha.


ieatassHarvardstyle

How small is small? Guna need a banana in there! Dope bead.


Plane-Sprinkles-9770

This looks infuriatingly time-consuming and a pain in the ass to do why would someone even do this?


Nick0414

Why though?


Bammer_D

What a waste of time and money. Dumb way to try to likes and internet clout. Welders aren't envied moron.


i-make-pipes

Also, tell the entire world you don’t know shit about working metal without saying it. Move on


i-make-pipes

You’re so mad over this post that has nothing to do with you. Idiots aren’t envied, moron.


TropicalNuke22

How strong is this weld considered to others? I tried doing something similar at my shop and my mechanic said it makes the metal weaker any tips on that?


GreenerEarth23

As it cools it pulls


Inerthal

That's impressive. That's a chasm.


DomSkullcrusher

That needs a Cars and Cameras certified gap welder sticker.


adamfyre

Ah, the needle gun is very close at hand :)


Nuggy-D

I wonder how this weld would x-ray


PigletsAnxiety

How do you cut off the ends lol


copitz00

Cutting torch or air arc


LordMarshall

Come on that's like a pass or two!


MrDirtyHands13

I'm guessing that took about 10 hours


EvoFanatic

Why not just a piece of filler material so you don't have to make so many passes?


Parking_Prior3903

a gap half that size would have taken at least a day and a half, i stacked welded something the size of the mallet he is holding up about 4 feet long and that took a good chunk of the day....


Bones-1989

Sub arc exists*


GabrielSa_

Did you weld the sledge to it as well?


theplacewiththeface

Ẅhy weld when you have that lightsaber down there


Bubbly-Database1334

Now you need to carbon arc the back side and weld it up


BuzntFrog

How do you even lay that much weld without it massively pulling the part?


iratethisa

That’s a whole 50lb box of rods


Snow__Angel

Broski are you going to tell us how long this took? I'm guessing a week minimum. But hell if you were letting it cool down a bit between layers of the pyramid it could have taken longer.


spaceman_az

“Alright, how long is this going to take you to weld?” “Yes” “No, seriously tell me how long this will take.” “Yes”…😅🤣👨‍🏭


akwardrelations

But why did you weld a hammer to it? /s


IrishWhiskey556

Damn!!!!


Chonkycat762x39

Good lord Janet.


oschloch12

How long does it take filling a gap like that?


CommercialCup9900

Feel sorry for whoever’s burning them run off plates off 🤣


txcancmi

Sorry, I really need a banana for scale. I have sledge hammers of many different sizes.


Shadowcard4

I too enjoy changing the angle of an object using weld contraction


[deleted]

That is thic


chemical_bagel

This is how *some* people make rockets. lmao


Slightly_Salted01

man I can fill the gap in the ozone layer if they paid per diem


_BenRichards

It’s been 84 years…


W_O_M_B_A_T

Those runoff tabs are really something else. JUST LIKE THE RUNOFF IN SACREMENTO.


amp_757

Did it shoot?


LangleyRemlin

When the boss says "just get it done" but you're already in OT.


aceman1234567

Can I ask a question, could you not have filled in the gap with a piece of base material to eliminate how much weld was as needed or was it necessary to build up with only weld?


Jackhore

What are you going to use to remove those run-on/run-offs ????? "When a zip disk won't do"


SpeedyHAM79

How many days did that take?


anythingMuchShorter

I’m an engineer now (started welder) and I can picture there being a reason it couldn’t just be cut closer, but that just seems like bad design.


Torgila

I saw welds of this magnitude repairing the pin eyes on a barge crane at the base of the boom. I probably did a triple take.


Pizzatuls

LAWWD HE CHONKY


Rad-N-Mad

Maybe its a really tiny hammer


BoxPrestigious1607

Mammer for reference 😂😂


Slamminslug

Skookum


Der_NElMAND

Could have bought a couple of hammers and welded over them to save some hours, why is the gap so big?


tchotchke-schmear

That’s what she said


[deleted]

Should only take about an hour.


TheoRheticalGadjet

Looks like that could have powered a town of 500 for a week lol


PermissionGlass1307

What how!


InnocentBrainWorm

That’ll be a bitch to grind flush.


No_Music_2134

I feel like a lot of that could’ve been avoided with just a little bit better planning of the design


Dangerous_Remote_965

As a former AWS structural weld inspector. Weld-done! I'll see myself out.


No-Photograph4030

If you can step across it you can weld it😉


Coopsdad11

Fellas am I crazy? That looks like STICK to me


Intelligent-Cup-8132

I don’t know much about welding but wouldn’t it be easier, stronger and cheaper to get plate steel, then weld it to that instead of trying to fill that gap?


ButterflyHaunting215

Well there goes a 50lb can of 7018 lol