This is in no way stronger 💪 than previous it's an economical repair as opposed to replacement though it won't last nearly as long, still it works and a good example of engineering
Great engineering!! Drive the steel plug into the axle stub rust scale and all. That makes for a strong joint, dontcha know?? This repair does NOT create a joint stronger than the original. Before it broke, the axle was in a constant state of compression - tension as it rolled. Those 2 forces were equally distributed over the diameter of the axle shaft. Now that the center of the axle is a separate piece, it no longer shares in compression or tension as the distribution of these forces now stops at the boundary between the repair plug and the original axles material. This allows the end of the axle to have leverage when exerting tension on the axle so only the repair plug will not share in carrying those loads and the axle can begin to fracture at the outer surface of the plug at the deepest point of the weld.
These axles are so grossly overloaded that I do not know how they survive the abuse they put them through at all??? I don't know how those poor u-bolts hold the axle in place with the extreme weight they are loading on those crazy big leaf springs!!! I work on heavy duty trucks in the USA and these videos just amaze me how they overload these axles 4+ times the weight they were designed to haul!!
Have you ever heard of a 5:1 test ratio? I can't speak for those axles or yours but from what I've seen most axles come between 3:1 5:1 or is tested 3 to 5 times it's marked rating. Manufacturers do this because it safer. Less law suits and its a better product.
Не так давно видел видео с часовым индикатором, вот только они им пользоваться не умеют, как и штангенциркулем. Кусок проволоки на стойке и кронциркуль значительно понятнее.
А я, расточитель, когда увидел трещинки на задней балке своей десятки, взял и заменил её на новую. Надо было к ним обратиться, заварили б её, и она легко на 3-4 недели дольше бы проходила... Нет, вообще, за старательность и труд смело ставлю им пятёрку, стараются поддерживать работоспособность своей техники при практически полном отсутствии нормальных ресурсов, но мне б после такого ремонта НАСТОЛЬКО ответственных и нагруженных узлов было бы страшно ездить. Хоть бы этот вставыш сваркой трением соединили б с кусками оси, чтоб не на одном несчастном шве держалось.
To have an axle shear so cleanly of high strength steel shows the severe stress these truck axle deal with. Improving roads would help too. These side industries will always have jobs to do.
If you look at the break. It is a clear case of fatigue failure. However , what caught my attention was that once the Crack had progressed 25 to 30% of the dia the component failed. Shows the extent of overloading it was subject to.
How is that stronger? The plug is not even a tight fit, it is covered in surface scale/rust so it will just vibrate loose even though they pounded it in with a hammer. And there was no preheat so the weld does not have good penetration to the original metal.
Interesting content, but in reading the earlier comments, I cringed in the jacks used, let alone the wood logs as backup. I’m not knowledgeable about metal, but my gut says it won’t last.
It won't last, but I'll wager it's not supposed to. It will, however, get him to his destination to unload his freight and get home to replace the axle. That's the point.
these people are crazy. they add an insane amount of leafs and then expect the truck's GVWR to go up too. That ain't out axels and axels housings work.
@@fiaao546 yeah it is a wonder the machine shops and foundries aren't making heavy duty diffs and axles by now. Even if they added webs onto existing equipment the load rating would go up significantly. I have seen repairs where they plate the diff as well but then the other side will snap and possibly the repair also. Depending on pothole depth and overload percentage
Mechanics and machinists', a Mechanic is someone that knows how to fix or repair stuff that is broken. There are hardly any Mechanics around here anymore today.
Everyone talking about the welds and so on. While im over cringing every time a person gets under a truck held up by a bottle Jack. No the safest thing to do. Or put these trucks in bottle jacks. The jacks are not meant for this. But to each his own. I respect my life more that this . Call it tires holding it up, but all it takes is one thing go wrong 😑
I wonder what death rate is from all these runaway tire video's? I've seen a few. Also, what is the purpose of making your truck look like a circus truck?
DAVID E WELINGTON,NUNCA SE DERAM BEM ,MAS ESTÃO TRABALHANDO JUNTOS E RECUPERANDO OS EIXOS MAIS DIFICIEIS .PARABENS DAVID SEU TRABALHO MERECE NOTA "10"!
1st thing the axle was cut almost halfway through and then fatigued and broke the rest of the way . 2nd the corrosion on the press fit plugshould have been removed before pressing in (hammering into place in their case) as rust doesn't hold as well as clean metal on metal , also wouldn't be stronger then original, original was weakened by someone cutting it you can see it plain as day
Why is it that all the trucks in pakistan look like carnival rides? Use a little super glue there Jasper, it'll hold! That super precision wire indicator is a hoot! Where did they get the electricity to run that lathe? must have had it shipped in.
Buen trabajo,pero incompleto,deben realizar magnaflux,radiografia a las dos puntas del eje,la reparada para asegurar que la soldadura no tenga poros y la otra para constatar que el eje no tenga alguna fisura interna y despues hay que volver a desarmar todo y significa perdidas económicas para el camionero!!!!
Wonder where the wheels went when they took a ride? On that other utube channel smashing into the store front possibly?? Why not turn down the round stock so ya know it's true. I know there is a lot of criticism here but hands down, these guys definitely make due with what they have. Side note, wouldn't it be funny if the lathe really was spinning that fast?!!
I have done this sort of in field repair many times on driveshafts and axels. I can’t see any issue with it. Easy to judge from an arm chair tho isn’t it.
Ну если поры заварил, то точно тогда не треснет, я в шоке, даже страшно представить, что когда-нибудь при нагрузке данная конструкция отвалится на ходу , просто ужас
