Блин, сверление без смазки, рукава по колено у токарного станка, за один проход под хорошим углом снимает такой слой металла, как ты ещё жив, кто ты воин?! Дай бог тебе здоровья 🤝
Ещё порадовала наплавка толщиной сантиметра в 3 на вал и заплавка отверстия во фланце без какого-либо контроля, хотя под циклическую нагрузку ЦД не делать уж точно грех. Ну и сам шов не факт, что с полным проплавлением, щель изнутри даже не пытались разделать нормально, зато сколько поверх навалили...
@@user-xw4zf8xc5q тут вопрос что же дешевле: поставить одну деталь по цене в три-пять раз превышающую стоимость подобного ремонта или каждый месяц в гараже оплачивать этот ремонт и терять деньги на простоях грузовика.
I am a person in a small shop. What is most heartfelt to me, is that I repair things that are seemingly impossible, like this, on a regular basis. I work with metal, and plastic on a regular basis. After a few tears, I finally have the faith of the guys that work with me. They have come to me and say, Dan, what kind of magic do you have for this? To all of you novices out there, the one route to success I can tell you, NOTHING IS IMPOSSIBLE. Give yourself some time, watch the oddball videos like this one, and LEARN. Nothing is impossible. You can repair ANYTHING, even electronics!
Суровый мастер, маслом не смазывает и даже не охлаждает, когда такой большой диаметр сверлит. Стружку тоже по полмиллиметра снимает. А уж наваривать сломанную полуось - вообще песня. Центровка и балансировка - о таком они вообще не слышали. Такой ремонт - это очень не на долго. Видно же, что металл не однородный.
Мля чувак ты вкурсе сколько их населения? Вкурсе что у них до сих пор кастовая система классов? Вкурсе что один туалет по статистике если не путаю гдето на 20 или больше семей?
Вынужден Вас огорчить .В сельских мастерских , мы уже пролетели мимо них значительно ниже.И падение продолжается.Токарей,сварщиков ,слесарей уничтожают как ненужных.Кнопкотыки рулят.
@@user-uz4yt2by9h возможно, я не из россии. У нас эти чистые классы давно вымерли а разряды ушли в нибытье вместе с ссср. Все идет к универсальности. Чем больше 1 человек выполняет разных операций тем более он востребован
@@dimazzz8617 Ну а мы в России со скоростью локомотива летим к лаптям ,онучам и боярам на дорогих авто .А универсальность и инициатива по очереди любят инициатора в изощренной форме.Ну а в целом падаем.Всего Вам доброго.
@@user-uz4yt2by9h ем... что за бред к каким лаптям? Если ты деградируешь то это не означает что все деградируют! Сейчас человеческий труд заменяют на машинный ибо а)дешевле б) точность и в) работа 24\7
The problem with such shaft repairs is. that because it looks so good, it does not mean it is very good. Metal suffers from metal fatigue and the work function on that shaft after years of operation would have " worked the metal" at some distance away from where the axle broke, and this is memorized by the shaft. The manner in which he welded on the end of that broken shaft to fill it in before he inserted it in the coupling disc, was rather naive of the granular makeup of that region. Just because one welds some metal on a broken shaft to make up for the missing metal, that sort of cosmetics would look good, but the joint is lacking strength, the old metal has been suffering fatigue and that will not be corrected by simply welding on it a lump of new metal, with a cold weld. The stresses involved are enormous and that shaft is not simply malleable iron but good steel which needs good preparation and good controlled cooling after welding. One needs to know the phase diagram of that metal and its heat treatment to " rejuvenate it! Still, the actual workmanship is good but the higher-order engineering is very lacking. Those trucks are overloaded most of the time and it is a reasonable temporary repair for a cargo truck that does not travel at high speed on a fast motorway with other cars around. Still, these people are to be admired for their intelligence and ingenuity, but let us hope that we do not see repairs like that on a shaft used in aircraft carrying passengers.
Yes ,when I first saw it a lot also went through my mind,but I see his welding shield and no gloves and realize it's the best your going to get in this part of the world.
Was thinking about the fatigue and welding stresses too. Agreed, it's amazing work for the tools they have. A nice surface finish on that inside radius would go a long way in preventing it from breaking in the exact same spot. Perhaps they did that after the video
@@offinthehaed I've been welding for close to 50 yrs. if you have for 40 with no gloves and sun screen life probably has so surprises for you! All you young guys protect yourself and look after yourself cause you are the only one that will.
@@offinthehaed this axle doesn’t sit in any bearing, the hub does. These just drive the rotation of the hub. But it also keeps them from seeing the weight of the truck, they don’t support the load, only accelerate the truck.
See I get that but, it's not their materials it's the techniques and lack of training, I mean the guy didn't use one drop of oil the whole time that hub was on the lathe, they probably go through tools like crazy with not knowing how to use them properly.
@@kielbasa.sausage I know they didn't. No dial indicator either. They needed the truck to go, so they did what they could with what they had. I ve done repairs on trucks(semi's) on the side of the road, in parking lots, in the dark,rain, snow,ect. I didn't always have the "proper pieces" for the repair so I do what I can to get it back to the shop, just like these guys did. They didn't give up. Even though it wasn't perfectly done- they got it rolling again. You've got to admire that my friend.
These videos are some of the scariest shit I've ever seen. How screwed will it be when the shaft breaks off the end. The other video of resurfacing a pressure plate with welded or brazed cracks. That will come apart and scatter everywhere, maybe kill or mame someone.
@the dude you can have whatever opinion of the job you want. I don't care. I said I thought they did an excellent job on it for what they had to work with,that's all. Look around. There's lots of substandard repairs going on in our country too. If the axle breaks again, it's inside a housing. Remember it already broke once. Yes, I still admire the repair for what it's worth. I also know it would take a replacement axle to repair it right. At least their not sitting there crying about it. They did what they could.
You must not weld items in the lathe with the earth clamp on the lathe body. Doing this will damage the bearings in the head stock of the lathe as the current will be arching across the small contact areas of the bearing The same rule applies to all autos and plant always clamp direct to material being welded
I also wrote this on another video some weeks ago. Also important on motorcycles. If the headlight and the indicators aren't properly grounded, the current will pass through the steering head bearings and that will ruin them pretty quick.
A true civilization keeps getting better, progression of technology. These guys are true master craftsmen but held back by their government. Imagine putting these same guys behind state of the art CNC machines they could make, fix anything.
I can say this much machine shops been shorting axle shafts like that a long time for kustoms and drag cars long before currie and strange made custom length axles still done today for odd axles
@@bourbonrenewal216 a surface deep one pass cold weld without any preheating on a large pieces of alloy axle steal. THERE IS NO WAY THAT IS BETTER THAN A SINGLE FORGED HEAT TREATED AXLE FROM THE FACTORY
At the beginning of the video you can see the shaft was repaired before. From the job done in this video it is clear the shaft will need to be repaired again. People compliment the simple tools used. Anyone can do anything wrong, especially if the expectation is that it only last a little while.
@@jonyoung6405 Originally it probably did, but welding creates a brittle area of metal known as the HAZ (heat affected zone) and if the drive flange is not mounted exactly central and perpendicular to the axle then every time it rotates it will apply a cyclic stress to this area which will quickly fatigue and fail. Those axles and drive flanges are originally forged as one piece for strength because they are highly stressed parts.
@@klaas2804 probably no others in existence over there. It gives someone a job to do and they get there truck fixed. It's a lost art where people can actually use tools to rebuild stuff not jist toss it away.
Finally an intelligent comment, axle shafts are a forging for a reason, there is no way this repair is even close to the strength of the original part. Can you say repeat business!?
Looks great, but that axle will crack and break very, very soon. Welding the end and the outside edge can't compare to the strength it originally had as a one piece forging, which also broke. I realize it's a this-or-nothing scenario, but they can expect to be doing this repair again in the near future, unless this truck never pulls a load.
Yup....definitely going to break again...especially when trying to weld on high tensil material....never will get the same strength out of it...plus,burning in with a 7018,is just going to make the material even more brittle than it already is
@@user-vm4wq5gi4fне знаю на каком вы заводе видели чтоб полуось варили , обычно на заводе полуоси делают из цельного куска металла с помощью ковки , после мех обработка и закалка.
@@user-br3zd5ur5q заводчане всегда думают что только они делают правильно,но когда рядом ближайший город за км 300 люди делают что могут, и получается очень неплохо, когда нет запчасти крутишься как можешь, так что впаривать свое научное мнение никому не надо, купить готовое проще, но не всегда возможно
@@user-br3zd5ur5q обратишься на завод по чему нибудь всегда нет того и другого, то опыта то ума, то желания, люди делятся опытом и это очень хорошо, в деревне на коленке можно сделать
Сильно усложнили, после сварки прочность стала, как у пластилина, можно было просто на изоленту и жвачку приклеить и эффект был бы практически одинаковый 👍
@@user-sl3lv3oz6l угу.. я не механик и не сварщик.. я вообще офисный работник, последний раз такими же работами увлекался на уроках труда в школе и в трудовой секции в доме пионеров.... но блин я тоже офигел как на последних кадрах видны каверны после сварки. Вся работа в жопу.
Ой мозги не парьти где вы видели по СНГ такую работу токаря ремонт перелом полуоси тока и знаем заменой,и вообще кто думает что сварка слабая вещь ошибается я удленял рамы грузовых авто вот скажу сваркой ткни там сверлом уже будет сложно просверлить под болт соединений рамы как то так.
Да. И вообще валы в автомобилестроении в основном делают из Стали 45. По технологии, надо было в начале сделать отжиг металла. А после сварки, сделать закалку и отпуск. Тогда ходила бы деталюга 100 лет. А так скорее всего при нормальной нагрузке, лопнет как раз в месте сварки.
Для них достаточно. Смотрел экпериментаторов в по Российскому каналу так вот там сваривали жигулевский кол.вал лопнутый и как не странно она ходила, более того они этот движок насиловали так что думали вылетят поршни, но нет он выдержал.
@@user-ib1ok9ru9o однажды, выкидывая коленвал непригодный коленвал от КамАЗа распилил его на две части на всякий случай, чтобы металломщики не продали его под востановление
Что тут сказать🤷♂️молодцы, не все ьак могут не все так сделают при таком не богатом оснащении мастерской, сделали можно сказать отлично, но я думаю на много этой оси не хватит, потому что внутри поры остались и нет термообработки, а так мужики класс молодцы, реально уважаю таких которые из ничего сделали чтото, респект
It's always nice to see how people repair stuff instead of replacing. Unfortunately, that axle isn't gonna last very long because of all the crack initiation points on the inner radius, as well as tension in the material from all the welding. But I suppose they will fix it again when it breaks off.
Welding outside in the wind probably makes it the best choice. Not sure how the strength will compare with original though. I thought that these axles were forged.
I'm just going to say, usually you do the last step first. It's not the best idea to weld over iron oxide and whatever other crud and dirt built up over the metal. You can actually see what looks like small voids and cracks in the welds in the final close up.(18:40)
An old timer in CA told me about when he worked in a US factory making heavy duty condensers for refrig units. A Korean company bought one unit. It had a broken shaft which was welded, but it still worked. Years later, the old guy told me about going to Asia, because he heard identical condenser units were being sold throughout Asia. He noticed that every unit had an identically broken axel which was welded.
Bonjour cela fait au moins la 100e fois que je regarde ces vidéos consternant ces personnes pour moi ce sont des virtuoses de la mécanique dignes des plus grands préparateurs voir plus milles mercis de me faire connaître cela
Be sure to ground the part so that the lathe bearings are not damaged from arcing by carrying the arc welding load. The protection of the machine is the priority!
Sort of an old wives tale probably from the days of babbit bearings- electricity always follows the path of least resistance and an oil soaked bearing is high resistance.
I like watching these videos, iv always liked history programmes, this is early engineering still being practised in a modern world, living history if you like.
I think you should go outside USA where you can just order a new one my friend. Go out and see how things are done in other countries my friend. My respect for this masters that do this stuff
I completely agree. The last step should have been the first step. He welded over the rust and whatever other crud had built up on the broken end. You can see the voids in the welds at the 18:40 mark. Just a matter of time before it's back
The dude really did it with all the probably out dated equipment and yet not only he did it well it shows that he really didnt need hitec equipment to do the repair becuz he is the brain of all the measuring and precision not the out dated machines he owns ...if he only had the updated equipment imagin how 100% perfect this repair wud of been. Exelent job this guy performed with his equipment and making the best out of it👍👍👍and thst im so positive sure he did his best...no doubt.😄
They really should consider a rotating ground attached directly to the work piece. Lathe bearings will not stand up to the arcing and one day the lathe will be in trouble. Also would have liked to seen more taper on both parts prior to welding...but who knows what's acceptable given roads, material availability, costs, etc...
Lol, it doesn't matter? Just because he's done it 100k times and it's worked doesn't mean it won't happen and it's the proper way. I've locked up bearings before welding. Some times you get lucky some times you make a lot more work for yourself. No way I would be welding through my lathe...
This guys are so amazing working on their craft. How come they never work on work bench or table ? They have this great tools and always working on the ground?
This guy is basically 3D printing thr axle by hand. I love these videos and my hat is off for their skill. But I get depressed to see all that dirt, lack of protective gear, lack of respect for thr environment (all those oil spills). But, this guy is skilled. Hat off to him!
I had to do something like that recently for the clutch pedal rod on my car recently. Not as wide, but longer. Wasn't even sure that would hold. I hope this axle does!
I love watching this being done by hand the skill is awesome. In US everything is done with machines. It would be done with a rotary welder that builds up layers. Love seeing this
Not nessesarily most of this kind of repair stuff is still done by hand with admittedly better equipment in most cases in the us. For instance every shop I've ever seen in the us has dial indicators instead of the wire on a base they were using in fact other than that a lot of small shops would go about a repair like that in the same way and with very similar equipment. in fact the equipment they actually have doesn't look like it's in that bad of shape I've worked at shops with older and more beat up equipment than that. Several even had equipment from the 60s still running barely upgraded if at all to modern technology.
Many repair machine shops do shaft weld repairs similarly (except with proper measuring instruments to reduce runout and with tooling that leaves a proper surface finish.
Кажется догадываюсь почему. Нет своего производства, лишь ремонт, и металл не свой, потому что нет своей металлургии. Если было свое производство, то вот так вот не ремонтировали. Это сломается очень быстро. Тут тогда лучше хотя бы использовать 3D принтер и то, это деталь будет не такой, как надо после ремонта. В заводских условиях это ковка и прокатка, а тут только наварить сваркой и нарезать. Шлак даже не чистил толком, не проверил на пузыри и трещины ультро-звуком, это бытовой ремонт, не заводской. Такое в гараже делают. Но надо отдать должное, искусно.
As a class one coded welder there is no strength in that at all. Full of slag inclusion so would never pass an xray. Was over heated so weld an all the metal around this area is now very very soft. This will snap or bend at the pressure point very quickly
@@jonskitch8082 So that makes it OK to do a unsafe weld job on an axle shaft? Trucks are massively overloaded to begin which is most likely why the axle snapped. Waiting for the brake rotor/drum rebuild to come next.
Ya, this should hold for a couple minutes. Just weld right over the slag, it'll be fine. Shouldn't we chamfer both sides of the flange to get good penitration? Nah, it'll be good.
They didn't clean any oil or dirt off of it. These guys over load their trucks constantly. I give it a week to a month, before the weld cracks. And it'll probably give out one day to week after that. I could be wrong, but the guy broke the factory axle and the weld was not good. Educated assumption, says it'll break sooner rather than later.
Amazing how they can build these parts with out computers doing it for them. I'm just curious how they cope with the sand and cleaning them before the install
You find ways to keep parts clean out in the field , I was a Field Service Mechanic for Caterpillar Equip Co. It use to piss the boss off when a Customer or a Salesman's told him they wanted only me to work on the machine . Man I loved being a Field Mechanic. Some PVC Pipe an some visqueen you can make a clean room out in the field pretty quick ,
Parabéns! São "verdadeiros mestres" no que fazem... Aqui no Brasil não encontramos profissionais dispostos à esse tipo de reparo. E quando encontramos, cobram muito caro! Por motivos obveis... Aqui no Brasil, quebrou joga fora. Põem um novo. Graças aos Chineses.
