※This video does NOT include any paid promotion※ ※ 위 영상은 유료광고를 포함하지 않습니다 ※ 제품문의(Product Inquiries): bit.ly/44uyCjq (토네이도) 촬영문의(Filming Inquiries): factorymonster2021@gmail.com -I film for the company who are proud of showing how their products are made. -팩토리몬은 제품에 자신있는 소상공인 분들과 중소기업을 대상으로 무료촬영을 진행합니다. Copyrightⓒ 2021. Factory Monster. All Rights Reserved.
This is the most interesting video I’ve seen here. I had no idea what goes into making diamond cutting tools but I have a pretty good idea now. And those grinders sure take a beating! Great job.
Mohs hardness 9 grinding wheel (aluminum oxide / corundum) against Mohs hardness 10 material - diamond. They don't want to use a diamond grinding wheel because it will cut the diamonds. They want the diamonds to protrude from the carrier matrix - which is some sort of carbide (e.g. tungsten carbide). The oven process used to make the carbide is called sintering.
@@fredinit Thank you! This is really interesting stuff. I know the old saying, cut diamond with diamonds, but as you know that is not the only consideration. I’d like to know more about the diamond powder that is referenced in the video. I figure its composition is a fraction actual diamond and something else like an oxide that behaves like a flux. For sintering as you describe. I’d also like to know how they crush the diamonds to the size they prefer for this powder. Neat stuff!
@@puppergump4117 foot activated makes it easy to take off a finger. That's why machines like this have two buttons, one for each hand, to prevent accidents. Every accident starts with "don't put your hands under it".
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) which is going to hold it together, i.e. act as a matrix for diamond grit. Also, this "baking" is probably called "sintering" in the trade... ;-)
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) fillings, and this metal is going to hold it together, i.e. act as a matrix for diamond grit. It's the same as with "carbide tips" (saw tips or cutting inserts) - tungsten carbide (WC) or titanium carbide (TiC) are too brittle by themselves (and probably next to impossible to form into some definite shape alone), so they are always used within more elastic matrix - typically cobalt and vanadium (AFAIR).
Where did the fluting come from on the cutting edge? They were not these after coming out of the presses and there was no more pressing done afterwards, only baking. I love the paint they used.
Im surprised that a simple brazing process can withstand the pressures exerted on drill bits! Something that needs a diamond tipped blade/bit is extremely tough and I wouldn't think that brazing would be strong enough to bond the metal base to the diamond metal tips. Pretty cool.
Really impressive. I didn't realise diamond powder could be compressed like that, I didn't think it would get hard or did you not show the firing of the blades?. What sort of grinding wheel do you use for grinding diamonds?
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) fillings, and this metal is going to hold it together, i.e. act as a matrix for diamond grit. It's the same as with "carbide tips" (saw tips or cutting inserts) - tungsten carbide (WC) or titanium carbide (TiC) are too brittle by themselves (and probably next to impossible to form into some definite shape alone), so they are always used within more elastic matrix - typically cobalt and vanadium (AFAIR), hence different classes of inserts, dedicated to various materials (hard/ soft) and types of cut (continuous or interrupted). And then there are ceramic inserts, polycrystalline diamond inserts and cubic boron nitride inserts, but they are totally different animals (and pricey as hell too). Abrasive discs for bench grinders use (typically) a ceramic matrix, while these for angle grinders are phenol-resin bonded (hence the funny smell when cutting steel with them). Also, this "baking" is probably called "sintering" in the trade. In a nutshell, you just heat the mixture to the "below melting point" temperature. PS: At 13:43 you can see individual diamond grains - these tiny black "pimples" are diamonds, all the rest is just a matrix holding them in place. When an individual diamond piece gets too dull, the forces acting on it (while cutting whatever it has to be cut) become stronger than adhesion forces holding it in the matrix, and the grain falls off, and the matrix quickly wears off until new piece of diamond "comes out" - and so da capo al fine. However, when the material being cut is too soft there may be to little force to actually force that blunted grain out (a normal occurrence when drilling holes in glass panes), and that's why the manual calls, in such cases, to run the discs through hard material for a while to "resharpen it". Kinda counter-intuitive, but when you know "how it works" it makes sense. (In case of glass grinding core drills, the drill is pushed into a block of aluminium oxide, aka corundum, normally used as mild abrasive stone for hard steels, like HSS.)
@@MrKotBonifacy wow what a great explanation thank you. I have seen WC inserts being made and knew they had a binder hence my question about this "diamond powder", much appreciated
@@campbellmorrison8540 Be my guest : ) Also, I just noticed I omitted one sentence in my previous comment - nothing critical, I just forgot to add "and when the material of matrix/ binder is heated (during sintering) individual pieces of it "glue" themselves with their neighbours, akin to what happens during so-called forge welding". BTW, that "self-sharpening mechanism" works for all grinding materials - ceramic discs for bench/ die grinders and angle grinder ones as well. And, oh, "there's one more thing" ;-) I answered few other questions "like yours" here (there were more than few people asking the "about the same" but the author never answered these so I chimed in, but kinda lost track of what to whom I typed), so anyway: _"What sort of grinding wheel do you use for grinding diamonds?"_ Fro "grinding diamonds as such" a paste of diamond powder and oil (vegetable one?) is used - this is how they make gemstones of rough diamonds, but in this case here you don't really "grind diamonds" but the matrix material and a little bit of the outer part of that steel discs - for which a regular silicon carbide (SiC) ceramic bonded grinding discs are used. And they sorta-kinda manage to do just that, HOWEVER, whenever a diamond piece embedded in the matrix meets that SiC disc it just rips it apart, like a steel ripper rips soil - hence the insane amount of dust produced in the process (it's all SiC grit ripped off the grinding disc) and the rate these discs are used up in the process. But then you have to smooth and flatten the edges of these diamond discs, and SiC-ceramic discs are relatively cheap, so this is how they do it - and then there's no way around it anyway. Even if they tried to use a diamond abrasive wheels (i.e. discs with a thick layer of diamond grit embedded in brass or bronze, or in resin or rubber, which are used in machines for grinding and polishing glass pane edges and for fine-grinding of carbide tools, like tipped saws) these discs would probably get clogged with all that "non-diamond" material. Can't vouch for it, never saw it happening, but I've heard from someone running a carbide tool sharpening shop that whenever a carbide tipped circular saw requires "deep" grinding he uses regular corundum discs to remove some of the steel behind carbide tips because steel tends to clog diamond discs (in the same fashion like aluminium, which clogs regular cutting and grinding discs). And then these diamond discs I just mentioned aren't exactly cheap either, so I guess that "SiC-ceramic discs" option still comes out as the cheapest one. But this is just my educated guess, so don't take it as any Holy Revelation of sort ;-)
I used to have my own concrete cutting business so I knew what goes into making the blades. But I am VERY impressed with the grinding wheels, they mush have a high diamond content to be able to grind diamond blades. I still have a segment out of an old diamond drill which I use to reshape/reface the grinding wheels in my workshop. Put a diamond onto a normal grinding wheel and the grinding wheel disapairs.
The grinding weel is only grinding the carrier matrix, nothing else. This must be done in order to get the disk to actually cut, or rather scratch its way through stuff. For concrete and tiles, these disks are awesome. For everything else, they really suck.
Why the arrow near the central hole ? 9:39 this is put on blades with teeth which only work spinning one way , but these diamond blades can spin any direction and work the same.
Something I just realized is that the wear on those machines, like the lathes, grinding tools, anything with moving parts... has to be unreal.. with all that diamond dust settling on everything...
That "whole lotta dust" is actually MOSTLY (like 99.9% I'd say) silicon carbide (SiC) dust from all these grinding stones used to smooth/ flatten the diamond grit holding matrix. While the matrix is pretty soft (bronze or brass, I reckon - maybe aluminium bronze or silicon bronze) the diamond grit wreaks havoc on much softer silicone carbide, hence the insane amount of dust - but then again nearly all of it is evacuated before it can "float around" and settle on the machinery. But some of it probably does get airborne, dunno for sure.
Interesting and somehow impressive, but I see a lot of space for additional automation. This whole manufacturing process could be automated to the point where you put raw materials at the beginning of production line and take boxes ready to be shipped on the other side. I guess it is not automated because work of these people is cheaper than all the required equipment.
"... but I see a lot of space for additional automation." Possibly all the employees are family and there are many considerations to full automation. If your brother-in-law does not have a job he will NEVER move from your spare bedroom. EVER!
Looks like regular silicon carbide (SiC) grinding "stone". And it isn't grinding "diamond" edge "as such" but mostly metal - i.e. steel discs and the brass (probably brass) matrix (that darker, thicker stuff around the circumference of these discs) which holds diamond grit, so "yes, we can". But still, the diamond grit "does its job too", and it grinds down much softer SiC disc like crazy, hence this insane amount of dust.
The solders contained powders of technically pure metals in the following approximate ratio, % (wt.): 20 Sn, 43 Cu, 25-30 Co, 7-12 W. Synthetic diamonds with a grain size of 315-400 microns are introduced into the mixture of metal powders. An aqueous solution is added to the solders as a binder a solution of polyvinyl alcohol in an amount of 12% by weight of metal powders. The samples with the applied diamond-containing mixture are dried and then annealed in vacuum or neutral gas at a temperature of 820 C with an exposure time of 40 minutes and more. p.s When you open production, invite me to work as a technology partner.
Great efforts make great things happen, I love working people, because I also work hard Lazy people are just a shit in this beautiful world..... Grab Love from your friend in India Agra City Uttar Pradesh Suneel Kanda
Seems like they use quite a bit of time and grinding supplies to dress the cutting edges. Why not sell them with the full amount of brazed diamonds? They save cost and I would get more diamonds to cut with. Does any brand sell them undressed?
ahhh just like japanese they still use this old press machine that cut so many arms .., while other use more advance tech and precision tool and more safe with cover or raw pusher/remover
That difference may not exist in Korean, in many languages it's just different types of soldering for everything, you just specify wich type of solder, like TIG soldering, brass soldering, tin soldering, laser soldering, friction soldering and so on.
That may be so… but the English subtitles end up being incorrect. For anyone not hip to the lingo, brazing (or hard soldering) is the act of heating two objects, then using a filler material to join them (think: glue). Welding is the act of bringing one or more objects to the point of being molten then with or without filler they are joined by the fusion of those materials.
※This video does NOT include any paid promotion※
※ 위 영상은 유료광고를 포함하지 않습니다 ※
제품문의(Product Inquiries): bit.ly/44uyCjq (토네이도)
촬영문의(Filming Inquiries): factorymonster2021@gmail.com
-I film for the company who are proud of showing how their products are made.
-팩토리몬은 제품에 자신있는 소상공인 분들과 중소기업을 대상으로 무료촬영을 진행합니다.
Copyrightⓒ 2021. Factory Monster. All Rights Reserved.
No Music and funny Subtitles. Best Channel
Thanks a lot!
Great with no music! 🙂
👍👍
Thanks for watching!
No ear plugs either
@@scotsmanofnewengland7713 why u need it ? :D its not so loud
I know. I am tired of everything having background music
This is the most interesting video I’ve seen here. I had no idea what goes into making diamond cutting tools but I have a pretty good idea now. And those grinders sure take a beating! Great job.
Mohs hardness 9 grinding wheel (aluminum oxide / corundum) against Mohs hardness 10 material - diamond. They don't want to use a diamond grinding wheel because it will cut the diamonds. They want the diamonds to protrude from the carrier matrix - which is some sort of carbide (e.g. tungsten carbide). The oven process used to make the carbide is called sintering.
@@fredinit Thank you! This is really interesting stuff. I know the old saying, cut diamond with diamonds, but as you know that is not the only consideration. I’d like to know more about the diamond powder that is referenced in the video. I figure its composition is a fraction actual diamond and something else like an oxide that behaves like a flux. For sintering as you describe. I’d also like to know how they crush the diamonds to the size they prefer for this powder. Neat stuff!
great video, but one correction…the welding process is brazing, not welding.
Great production and editing, and even better with no music! Thanks for making the videos
철물점에서 보던걸 만드는영상으로 보니.. 새삼 신비롭습니다. 저정도로 수작업 일것이라고는 생각 못했습니다.
ALL good. Made in Korea, the GOOD part! Thanks!
As someone that manages an aerospace cnc cell, this gives me nightmares from the amounts of risks of grevious injuries lmao
Those fibre lasers they use for engraving are so cool.
Another great video. Thankyou. 👍
Thanks for watching! ;)
my instinct was that this was a mostly automated process all done by machines, but there is so much more manual work involved. great video as usual
I'm amazed that most steps in the process are completed by hand instead of machine.
Yesterday I wondered why saw blades cost so much. Now I wonder how they can cost so little.
Скажем спасибо массовому производству!
This not a saw @$$ hole , these are diamond blades and expensive because have diamond
@@yashar4086Bort is not nearly as expensive as gem grade diamonds. The process is what makes the expense.
@@yashar4086 lol bro these are definitely saw blades. please relax.
When an ignorant person does not want to understand something, he takes the path of being a donkey
As long as it’s not China I’m glad to support. Korea and Taiwan make great tools.
China can manufacture to any standard. You just don't want to pay for it.
@@ShainAndrews No, I don't want to send my money to an aggressive regime that pays no heed to international law.
Me too.
@@rovert1284 Very true.
@@ShainAndrews I just hate China and all the stealing and aggression.. thats why i dont buy from China.. if possible
This is very labor intensive. No wonder that they cost so much. Thanks
Just automate these simple tasks like painting, etc
@@АгронДепартье automating a simple task is never simple, especially not in an industrial environment like this. Its also not cheap.
0:50 I wonder how many fingers that machine has taken off over the years... I can't believe how manual this process is for this particular blade.
I mean it's just like a meat slicer or something. Don't put your hands under it, easy. Foot activated too so just release if something happens.
@@puppergump4117 foot activated makes it easy to take off a finger. That's why machines like this have two buttons, one for each hand, to prevent accidents.
Every accident starts with "don't put your hands under it".
@@larrybud I would certainly hope the guy making my diamond-tipped blades knows what he's doing though
Love the finishing color on them Tornado blades. And the laser is badass fast!. Wow.
I very much enjoyed your video and I gave it a Thumbs Up
They look alot like the IQ Dry cut blades I use at work. Nice to see the quality of work that goes into making my job easier.
amazing process and super amazingly filmed !
ASMR 들으러 왔어용✨
시청해주셔서 감사합니다 :)
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) which is going to hold it together, i.e. act as a matrix for diamond grit. Also, this "baking" is probably called "sintering" in the trade... ;-)
Very interesting! Isn't that brazing?
So, can I assume this product is made for the Korean market? There are a lot more manual steps involved than I expected.
I was using a diamond blade 10 minutes ago. Always wondered how you get dusmonds to stick to steel!
Thank you for filming this.
Thanks for watching!
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) fillings, and this metal is going to hold it together, i.e. act as a matrix for diamond grit. It's the same as with "carbide tips" (saw tips or cutting inserts) - tungsten carbide (WC) or titanium carbide (TiC) are too brittle by themselves (and probably next to impossible to form into some definite shape alone), so they are always used within more elastic matrix - typically cobalt and vanadium (AFAIR).
This has got to be the lowest tech, high tech factory I've ever seen. Props to those workers that make it work!!
Very educational video, thank you!
There's probably some pakistani guys sitting on the ground with bare feet and mininal tools making discs just like this in some back-alley sweatshop.
鑽石鋸片的生產過程，網路上很少看到，希望能有更多可以看
另外請問那些能修磨人工鑽石鋸片（6：10、6：50）的工具是什麼，也是人工鑽石磨盤，還是更硬的人工鑽石
산엊스파이 등판ㅋㅋㅋㅋ 농담입니다
Good that you show literally how they are made, and not just an assembly line like everyone else does.
Where did the fluting come from on the cutting edge? They were not these after coming out of the presses and there was no more pressing done afterwards, only baking. I love the paint they used.
This is like homemade or small factory, but they can produce such a quality item, great!
Im surprised that a simple brazing process can withstand the pressures exerted on drill bits! Something that needs a diamond tipped blade/bit is extremely tough and I wouldn't think that brazing would be strong enough to bond the metal base to the diamond metal tips. Pretty cool.
It is nice diamonds have some practical use and not just blingbling.
Korea makes nice things. South that is.
impressive, the diamond it self is just a compressed powder, i wonder how this arrange at molecular level to form such a solid.
Another interesting and well produced video! Thank you for sharing!
Great video, and many thanks for the written subtitles 👏👏👏
Thanks for this video, were can we buy these disks? Kind regards from the Netherlands
Just glanced at your subscriber count... Wow. I've been with you since early 2022. I remember a few thousand followers back then. Well done!
I have a lot more respect for expensive cutting tools now. Quality not expensive.
10:30 I've always liked the idea that you can just press dry materials together and mostly make them into something. How are the abrasive wheels made?
Same method... roughly. Pseudo sintering with the addition of epoxy bonding agents.
Bosch TCT are Automated for the insert process produces a more consistent product than by hand
Really impressive. I didn't realise diamond powder could be compressed like that, I didn't think it would get hard or did you not show the firing of the blades?. What sort of grinding wheel do you use for grinding diamonds?
That "diamond powder" looks more like a mixture of diamond powder and the metal (brass? bronze?) fillings, and this metal is going to hold it together, i.e. act as a matrix for diamond grit. It's the same as with "carbide tips" (saw tips or cutting inserts) - tungsten carbide (WC) or titanium carbide (TiC) are too brittle by themselves (and probably next to impossible to form into some definite shape alone), so they are always used within more elastic matrix - typically cobalt and vanadium (AFAIR), hence different classes of inserts, dedicated to various materials (hard/ soft) and types of cut (continuous or interrupted).
And then there are ceramic inserts, polycrystalline diamond inserts and cubic boron nitride inserts, but they are totally different animals (and pricey as hell too).
Abrasive discs for bench grinders use (typically) a ceramic matrix, while these for angle grinders are phenol-resin bonded (hence the funny smell when cutting steel with them).
Also, this "baking" is probably called "sintering" in the trade. In a nutshell, you just heat the mixture to the "below melting point" temperature.
PS: At 13:43 you can see individual diamond grains - these tiny black "pimples" are diamonds, all the rest is just a matrix holding them in place.
When an individual diamond piece gets too dull, the forces acting on it (while cutting whatever it has to be cut) become stronger than adhesion forces holding it in the matrix, and the grain falls off, and the matrix quickly wears off until new piece of diamond "comes out" - and so da capo al fine.
However, when the material being cut is too soft there may be to little force to actually force that blunted grain out (a normal occurrence when drilling holes in glass panes), and that's why the manual calls, in such cases, to run the discs through hard material for a while to "resharpen it". Kinda counter-intuitive, but when you know "how it works" it makes sense. (In case of glass grinding core drills, the drill is pushed into a block of aluminium oxide, aka corundum, normally used as mild abrasive stone for hard steels, like HSS.)
@@MrKotBonifacy wow what a great explanation thank you. I have seen WC inserts being made and knew they had a binder hence my question about this "diamond powder", much appreciated
@@campbellmorrison8540 Be my guest : )
Also, I just noticed I omitted one sentence in my previous comment - nothing critical, I just forgot to add "and when the material of matrix/ binder is heated (during sintering) individual pieces of it "glue" themselves with their neighbours, akin to what happens during so-called forge welding".
BTW, that "self-sharpening mechanism" works for all grinding materials - ceramic discs for bench/ die grinders and angle grinder ones as well.
And, oh, "there's one more thing" ;-) I answered few other questions "like yours" here (there were more than few people asking the "about the same" but the author never answered these so I chimed in, but kinda lost track of what to whom I typed), so anyway:
_"What sort of grinding wheel do you use for grinding diamonds?"_
Fro "grinding diamonds as such" a paste of diamond powder and oil (vegetable one?) is used - this is how they make gemstones of rough diamonds, but in this case here you don't really "grind diamonds" but the matrix material and a little bit of the outer part of that steel discs - for which a regular silicon carbide (SiC) ceramic bonded grinding discs are used.
And they sorta-kinda manage to do just that, HOWEVER, whenever a diamond piece embedded in the matrix meets that SiC disc it just rips it apart, like a steel ripper rips soil - hence the insane amount of dust produced in the process (it's all SiC grit ripped off the grinding disc) and the rate these discs are used up in the process. But then you have to smooth and flatten the edges of these diamond discs, and SiC-ceramic discs are relatively cheap, so this is how they do it - and then there's no way around it anyway. Even if they tried to use a diamond abrasive wheels (i.e. discs with a thick layer of diamond grit embedded in brass or bronze, or in resin or rubber, which are used in machines for grinding and polishing glass pane edges and for fine-grinding of carbide tools, like tipped saws) these discs would probably get clogged with all that "non-diamond" material. Can't vouch for it, never saw it happening, but I've heard from someone running a carbide tool sharpening shop that whenever a carbide tipped circular saw requires "deep" grinding he uses regular corundum discs to remove some of the steel behind carbide tips because steel tends to clog diamond discs (in the same fashion like aluminium, which clogs regular cutting and grinding discs).
And then these diamond discs I just mentioned aren't exactly cheap either, so I guess that "SiC-ceramic discs" option still comes out as the cheapest one. But this is just my educated guess, so don't take it as any Holy Revelation of sort ;-)
i wonder why their grinding those...is it aesthetic, to look polished, or are they needed to be flat with small tolerance?
15 sec in, and I sew it all. The full version is much better 👌
Very satisfying
선진국의 다이아몬드 절삭날 만드는 것을 보면 예술입니다.
Can you imagine, diamond dust everywhere?
I used to have my own concrete cutting business so I knew what goes into making the blades. But I am VERY impressed with the grinding wheels, they mush have a high diamond content to be able to grind diamond blades. I still have a segment out of an old diamond drill which I use to reshape/reface the grinding wheels in my workshop. Put a diamond onto a normal grinding wheel and the grinding wheel disapairs.
The grinding weel is only grinding the carrier matrix, nothing else. This must be done in order to get the disk to actually cut, or rather scratch its way through stuff.
For concrete and tiles, these disks are awesome. For everything else, they really suck.
Why the arrow near the central hole ? 9:39 this is put on blades with teeth which only work spinning one way , but these diamond blades can spin any direction and work the same.
I sold diamond blades throughout most of the 2000s...all the best stuff was made in Korea by SH back then...
Cheers 👍💪✌
Thanks for watching!
Супер
:)
Increíble ,la fabricación es casi totalmente a mano...😮
Something I just realized is that the wear on those machines, like the lathes, grinding tools, anything with moving parts... has to be unreal.. with all that diamond dust settling on everything...
That "whole lotta dust" is actually MOSTLY (like 99.9% I'd say) silicon carbide (SiC) dust from all these grinding stones used to smooth/ flatten the diamond grit holding matrix. While the matrix is pretty soft (bronze or brass, I reckon - maybe aluminium bronze or silicon bronze) the diamond grit wreaks havoc on much softer silicone carbide, hence the insane amount of dust - but then again nearly all of it is evacuated before it can "float around" and settle on the machinery. But some of it probably does get airborne, dunno for sure.
hey like it nice and inefficient
Very nice!
12:30 is my favorite process. I love brazing.
Interesting and somehow impressive, but I see a lot of space for additional automation. This whole manufacturing process could be automated to the point where you put raw materials at the beginning of production line and take boxes ready to be shipped on the other side. I guess it is not automated because work of these people is cheaper than all the required equipment.
"... but I see a lot of space for additional automation."
Possibly all the employees are family and there are many considerations to full automation.
If your brother-in-law does not have a job he will NEVER move from your spare bedroom.
EVER!
hard work here have used many like these from Apollo
2:40 i love that little arm
Isn't diamond flammable?
Thats a lot of ‘Hands -on’ work
Assalamualaikum. !!
That's so great
Danke.
So, what do they grind the diamond edge with?
Looks like regular silicon carbide (SiC) grinding "stone". And it isn't grinding "diamond" edge "as such" but mostly metal - i.e. steel discs and the brass (probably brass) matrix (that darker, thicker stuff around the circumference of these discs) which holds diamond grit, so "yes, we can". But still, the diamond grit "does its job too", and it grinds down much softer SiC disc like crazy, hence this insane amount of dust.
*终于知道了。❤️*
what if they made a blade made
of all diamond.. that would
be so sharp!!!
Diamond is not sharp.
@@ShainAndrews not with that kind of attitude
You wouldn’t want to sneeze into that diamond dust.😂
Anyone know what is mixed with the diamond powder that hardens and holds the diamond dust on the metal blade when they bake it?
The solders contained powders of technically pure metals in the following approximate ratio, %
(wt.): 20 Sn, 43 Cu, 25-30 Co, 7-12 W.
Synthetic
diamonds with a grain size of 315-400 microns are introduced into the mixture of metal powders. An aqueous solution is added to the solders as a binder a solution of polyvinyl
alcohol in an amount of 12% by weight of metal
powders. The samples with the applied diamond-containing mixture are dried and then annealed in vacuum or neutral gas at a temperature of 820 C with an exposure time of 40 minutes and more. p.s When you open production, invite me to work as a technology partner.
인공 다이아몬드로 만들어도 되려나..
그럼 원가 많이 내려 갈 듯 한데..
I use industrial diamonds for dressing grinding wheels.
Astonished that there is so little automation involved. They either cost a fortune each, or the labour is really cheap. Or both.
thank you for not adding in some stupid stock music. way to many channels do that now a days.
Diese Laser Beschriftung Technologie ist _Sagenhaft_
Eine Future Technologie für CAR🎼 Style Klarlack Finish....
Beauty 🎼ND
Quiero una máquina láser
Great efforts make great things happen,
I love working people, because I also work hard
Lazy people are just a shit in this beautiful world.....
Grab Love from your friend in India Agra City Uttar Pradesh
Suneel Kanda
As in, blades that cut through actual diamonds?😮
All types are interesting and I have no favourite.
Seems like they use quite a bit of time and grinding supplies to dress the cutting edges. Why not sell them with the full amount of brazed diamonds? They save cost and I would get more diamonds to cut with. Does any brand sell them undressed?
I am wondering the exact same thing.
а где автоматизация ? Стоит чел подсовывает руками .....
Она в будущей пятилетке...
ahhh just like japanese they still use this old press machine that cut so many arms ..,
while other use more advance tech and precision tool and more safe with cover or raw pusher/remover
We hoped that AI will do repetative work instead of us to have more time to paint picture and do music, but something went wrong way...
30 senemi bu işlere verdim ❤
Not clear: how small diamonds are attached to the disk ?
The diamond powder is mixed in with metal powder. That way they can braze it (weld it). Diamond by itself couldn't be welded i reckon.
And… splitting hairs here, but those cutting tips are brazed on, not welded.
I was going to say the same thing. 😊
I think he'd appreciate the feedback.
That difference may not exist in Korean, in many languages it's just different types of soldering for everything, you just specify wich type of solder, like TIG soldering, brass soldering, tin soldering, laser soldering, friction soldering and so on.
That may be so… but the English subtitles end up being incorrect. For anyone not hip to the lingo, brazing (or hard soldering) is the act of heating two objects, then using a filler material to join them (think: glue). Welding is the act of bringing one or more objects to the point of being molten then with or without filler they are joined by the fusion of those materials.
Not everyone has English as their first language.
И за такую технологию у нас уже несколько десятков лет обдирают каменотёсов🤭 Смешно до слёз🥲
ну и чем это лучше пакистанцев? только что в перчатках и респираторах.
Well, I guess the workers won't die as young.
I imagined, that Korea is a hi-tech country. It's weird to see, that there is no automation of manufacturing process.
What about the worker’s?
❤
If you look, you see the fingers on the floor😂😂😂
diamond?
Let me see you stack them one more time.
after watching this video, I think the disks grinding or cuting are very cheap. therefor they must have more price then this fee in this bazar.
Just cut my finger with one of these. ( not same brand ) Only a tiny wound luckily. Funny thing it doesn't hut nearly as much as a cut from a blade.
a grinder to grind the diamond grinding tool