It's always crazy to see massive forces being harnessed in an extremely controlled fashion like this. The machine is so sturdy and the blade so massive and hard compared to the copper/aluminum being skived, and the medium material is secured so well, that it just looks like... a knife through butter.
Besides the solid engineering that went into designing machines like this, we must also appreciate the special properties of these metals that make it all possible in the first place. One cannot do this kind of processing with brittle materials.
you can calculate it actually, it's very simple. It's about the shear strength of whatever material is being skived, somehow multiplied by the area of the contact surface (length of blade × the thickness). I say "somehow" because there may be constants involved in the multiplication, search the formula of it for yourself. nice bit of physics :)
Вы должны записать видео в слоумо, большинство телефонов имеют такую запись. Макро съёмка нужна. Камера на штативе. 27к просмотров за 4 дня- это удача. Хватайте удачу за хвост.
I'm curious what the grain structure looks like after that reorganization. How would the operation change if you added a compression roller on the top edge of the cutting tool to flatten that negative curvature? Would cryogenic heat treatment increase the thermal conductivity afterwards?
It's a difficult question to answer, but an important question. Basically, when cutting skiving, we try to make the fin as natural as possible. Therefore, it can be expected that another deformation occurs when a pressure roll is added. It is an empirical opinion to make the material as soft as possible, and to make the blade hard when cutting soft.
Cutting does not effect grain structure, no more than cutting a wooden board changes its grain. Also any heat treatment doesn't change thermal conductivity. Heat treatment is used in altering the grain size and type for mechanical properties such as hardness, toughness ect
@@jonathanshaw8868 I care to disagree. Cutting with a saw wouldn't alter grain structure (aside from the localized area of the cut), but you can clearly see the deformations occurring under the immense pressure applied during the skiving process. Also: Thermal conductivity is certainly effected by grain structure; the effect is most notable between cast and forged metals.
@@zacharybennett3249 you are confused, let me be clear, you can alter the grain type that a metal has by heat or cold, this effects things like hardness. You cannot however change the grain structure without forging process. Also the surface deformation you can see with the naked eye has more to do with the way aluminum does something referred to as work hardening. Finally there is no difference in thermal conductivity relating to cast vs forged vs machined. The difference in the performance of the final product has to do with the surface area that is achieved. Also this may be a misconception due to the alloy materials used in forged, rolled ect materials. Example cast iron thermal efficiency sucks, loose a little carbon add some nickel and chromium and you have stainless steel, the total material composition of the alloying elements are less than 3%, but the thermal efficiency may increase by as much as 30%.
@@jonathanshaw8868 zacherybennett3249 is actually right. The skiving process indeed changes the grain scturcture to much smaller grain size which significantly decreases thermal conductivity. Same as it decreases electrical conductivity.
И сделайте автоперевод , названия и описания, на другие языки, в настройках видеоролика. Ваше видео залетает на другие языки, необходимо чтоб зрители понимали о чём видео.
So when the comments say, “must be compression”. ? Does that mean something like, as the aluminum gets cut and forced up onto the skivblade, there is compression happening?
It is usually used for the purpose of heat dissipation. And the skiving method creates an amazing heatsink by maximizing the surface area without loss of processing such as chips by integrating the structure with the material.
![[Making Skiving Heatsink 1bar Full] 35mm Copper Fin Skiving](http://i.ytimg.com/vi/E72Pr3O9IoY/mqdefault.jpg)
I can only imagine how big the forces involved must be.
Big
It's always crazy to see massive forces being harnessed in an extremely controlled fashion like this. The machine is so sturdy and the blade so massive and hard compared to the copper/aluminum being skived, and the medium material is secured so well, that it just looks like... a knife through butter.
Probably around 10 tonnes
Besides the solid engineering that went into designing machines like this, we must also appreciate the special properties of these metals that make it all possible in the first place. One cannot do this kind of processing with brittle materials.
you can calculate it actually, it's very simple. It's about the shear strength of whatever material is being skived, somehow multiplied by the area of the contact surface (length of blade × the thickness). I say "somehow" because there may be constants involved in the multiplication, search the formula of it for yourself. nice bit of physics :)
Forbidden bread slice
That's some great footage.
very satisfying, thanks for sharing 😝
please keep sharing these, they're great lol
Interesting music selection
very cool machining process.
Every grandpa when shaving his beard.
Fascinating! This was the first question that popped into my head the first time I saw skiving
Glad you enjoyed it!
What question?
@@goodbye8995 Why the length of the cut is longer than the height of the fin
Never know metals can be sliced like butter
allmost all metals are very flexible until we add something to make it better for our uses
Thanks. Very sharp.
It's like a wide slow shaping machine
Pretty cool. Good video to watch if your reading about metal chip forming theory and want to see a shear plane
Cool, thanks
So cool, thanks
I demand longer skiving videos
when metal feel like tofu..
Control!
Вы должны записать видео в слоумо, большинство телефонов имеют такую запись. Макро съёмка нужна. Камера на штативе.
27к просмотров за 4 дня- это удача. Хватайте удачу за хвост.
I'm curious what the grain structure looks like after that reorganization.
How would the operation change if you added a compression roller on the top edge of the cutting tool to flatten that negative curvature?
Would cryogenic heat treatment increase the thermal conductivity afterwards?
It's a difficult question to answer, but an important question.
Basically, when cutting skiving, we try to make the fin as natural as possible. Therefore, it can be expected that another deformation occurs when a pressure roll is added. It is an empirical opinion to make the material as soft as possible, and to make the blade hard when cutting soft.
Cutting does not effect grain structure, no more than cutting a wooden board changes its grain. Also any heat treatment doesn't change thermal conductivity. Heat treatment is used in altering the grain size and type for mechanical properties such as hardness, toughness ect
@@jonathanshaw8868 I care to disagree. Cutting with a saw wouldn't alter grain structure (aside from the localized area of the cut), but you can clearly see the deformations occurring under the immense pressure applied during the skiving process.
Also: Thermal conductivity is certainly effected by grain structure; the effect is most notable between cast and forged metals.
@@zacharybennett3249 you are confused, let me be clear, you can alter the grain type that a metal has by heat or cold, this effects things like hardness. You cannot however change the grain structure without forging process. Also the surface deformation you can see with the naked eye has more to do with the way aluminum does something referred to as work hardening. Finally there is no difference in thermal conductivity relating to cast vs forged vs machined. The difference in the performance of the final product has to do with the surface area that is achieved. Also this may be a misconception due to the alloy materials used in forged, rolled ect materials. Example cast iron thermal efficiency sucks, loose a little carbon add some nickel and chromium and you have stainless steel, the total material composition of the alloying elements are less than 3%, but the thermal efficiency may increase by as much as 30%.
@@jonathanshaw8868 zacherybennett3249 is actually right. The skiving process indeed changes the grain scturcture to much smaller grain size which significantly decreases thermal conductivity. Same as it decreases electrical conductivity.
И сделайте автоперевод , названия и описания, на другие языки, в настройках видеоролика. Ваше видео залетает на другие языки, необходимо чтоб зрители понимали о чём видео.
우와 이렇게 큰 방열판은 어디에 설치되는 건가요?
일반적인 조립pc에 붙는 것과는 다른 느낌이에요
태양광, 풍력, UPS등 산업용 인버터에서 사용됩니다~ 감사합니다~^^
How the heck does _that_ work?
So when the comments say, “must be compression”. ? Does that mean something like, as the aluminum gets cut and forced up onto the skivblade, there is compression happening?
Yes, that's right. My comment may be misunderstood.
히트파이프도 내장되있군요!!
절단 날 강도가 엄청나야게씁니다!
절단 나이프 경도는 58이상으로 사용됩니다.^^ 감사합니다.
어디에쓰이는 건가요?
신기하네요ㅋㅋㅋ
영상의 알루미늄 히트싱크는 태양광 인버터용입니다.
굴곡진 면에 방열판을 만들고싶은데, 그러한 사례가 있는지 궁금합니다!
아쉽게도 스카이빙으로 굴곡직면의 스카이빙은 본적이 없습니다. 스카이빙후 동그랗게 말아 원통형으로 만든것은 본적이 있습니다. 관심가져주셔서 감사합니다~^^
굴곡진면 방열판이 웨이브핀을 말씀하신건가요?
What is the purpose of skiving.
It is usually used for the purpose of heat dissipation. And the skiving method creates an amazing heatsink by maximizing the surface area without loss of processing such as chips by integrating the structure with the material.
i cant blieve its not butter
Would love to hear this without the music.
금속사시미