Yea no joke. Seems like it smells just as bad when it's new though. Smells like fish at least the stuff we use does

Yeah and it gives wonderful infections in little wounds on the hands.

Try having to clean a 18" turret lathe reservoir sitting over year with water soluble animal fat based coolant. Oh the joy of being 15 years old and working at dad's shop......lol......we were making F14 Tomcat fuel fittings.

I was talking with the repairmen working on the CNC bandsaw at my work. They told me cutting fluid, at least the stuff that's dark green and mixed with water to make a green milk looking solution is made of an animal byproduct.

🤢

"Simple", measure tool diameter offset when the tool is cooled, or if the need for precision is extreme, a tool offset chart vs. temperature, and use IR based dynamic tool temperature offset...

I would think the tool would stay at a constant temperature during cutting operation. I don’t think your going to get much thermal shrinking on carbide or ceramic inserts. Tool holder might shrink a bit but you can run test to figure that out.

@@flyfaen1 yeah measuring the tool at its coolest state would probably work and for bearing fits and such you could have a offset screen that measures tool temperature and runs it through a graph [dia. vs temp] and account for change

If its for roughing, who cares.

@Ryan Claus That's not how thermal expansion works in carbide or steel.

I would have to agree on that. Freezing something all ready super hard and make it super cold would make it more brittle. Trail and error on your speeds and feeds to find the right setting would be fun😁

Just a guess, maybe they don't harden the material itself and they let it harden naturally from the cryogen temps. Pure speculation.

@@mr.ignitio1082 true but it's dam cool what they are doing now days in machining world and it doesn't get old one bit

@@kindle2730 I love machining and technology. It really starts to become indistinguishable from magic.

I'm sure you have to have cryo rated tools. Surely they aren't the same alloys as regular tooling.

Also a non trivial suffocation hazzard.

Good

That idiot being me😂

Nitrogen will cause suffocation as well as cold burns.

I don't think the tools are changed out by humans, and the machine is sealed.

technically speaking its a refrigerant. but yes their double speak with laughable

@@Chocoboranger i guess they mean the white fluid that is specifically named “coolant” on the bottle, not just stuff you can make colder with. machinist coolant does more than cool stuff - it also lubricates

i think they mean coolant like the ones in fridges that hare high polluting factors, instead of complex liquids they just use liquid nitrogen wich is easy to get and is basically neutral to anything in the workplace

>..

It doesn’t *cut* with coolant, for me coolant means a smelly oily mess

Likely an asphyxiation risk too! Albeit space age and cool looking.

It's dry ice

@@1gizmospot Yep, and dry ice is cold, very cold.

@@1gizmospot No. nitrogen. Liquid co2 would clog as it would be cooled to turn solid at normobaric.

Hooray for Science!

My shop had a vent that led outside and we had to wear an O2 meter and if it went off meant we had to get out of the machine. I never had any problems.

@@JR-us1ne that's crazy, I love it

Бомба

Некоторые ускорены, я только не понимаю, низкая температура что даёт кроме охлаждения режущего инструмента?

@@dmitrykurdyukov2197 высочайшую точность обработки

@@dmitrykurdyukov2197 износ режущий кромок инструмента идёт меньше , а значит период стойки выше будет. Касаемо точности немного не понятно , ведь при отрицательных температурах , размер будет меньше чем при нагревании изделия до температуры окружающей среды .

@Ryan Claus can you stop replying with this retarded explanation? Cryo treatment doesn't magically make things not shrink or grow from thermal changes.

0.002 - 0.02 в зависимости от режимов резания

I believe insulation should solve this problem - spindle is usually quite big and has it's own source of heat (electric engine). Looks like that coolant is only used on actual tool.

@@MisFakapek or adding an oli heater like the water cooling but... for heating xd

вот вот, я тоже об этом подумал машину завёл в мороз и сразу тапок в пол на все деньги, волоса назад)))

Was wondering about that. This method would only make sense for a high demand and value workpiece with long cycle times. Not to mention titanium will burn under the right circumstances.

Don't think so. Milling and turning will always be king

3D printing has been around for 40+ years. It still has all of the same issues that it's always had. It's slow and inaccurate.

@@brandons9138 inaccurate? no, slow ok i could give you that. The side of 3D printing is that you can make parts with almost 0 effort which would be IMPOSSIBLE to machine (you could still cast them obviously but you also have limits to that, if you use shell casting or investment, you have to make sandcores either with printing or a core box etc etc)

​​​@@FireGodSpeed3D printing is wildly inaccurate compared to machining. 3D printing has its uses, but it's not a replacement for machining. Porsche and Trumpf are 3d printing pistons for Porsche's racing team. Just about every surface on them has to be machines prior to use because they can't get the tolerance/form or surface finish they need. There will need to be a paradigm shift in how 3D printing is done before it even comes close to machining. 3D printers are one trick ponies. If I have a tight tolerance hole on a part in a machine tool I have several options on how to achieve that hole/tolerance. On a 3D printer that is not the case. Once a mill or lathe is set up it'll run lights out with minimal human intervention. At my shop we have a robot loaded 5 axis mill that will run for 48 hours non stop. We could do more, but our material staging area is only so big.

@@brandons9138 ofc its not even close to accurate compared to machining i never said that lol. I just said its not "inaccurate" it really depends on part and application. Some stuff does not NEED to be machined they can stay as rough as they come out. Taking a piston as an example i mean come on you serious. Ofc you can't 3D print a fucking piston to spec when it rides in a honed bore are you for real? I did some googling on the tolerances of 3D printing and my guy.. "For well-designed parts, tolerances of +0.003 in. (0.076mm) plus 0.1% of nominal length can typically be achieved. Note that tolerances may change depending on part geometry." (+-0.1mm max aka 4thou+- MAX) That's 3thou accuracy at best. "inaccurate"? Compared to a Cast part that's accurate af. We have a 5 axis mill too that sometimes runs up to 60 hours at times, no clue why you even brought that up lol. And here we go with the "yes that's very inaccurate, i machine parts to microscopic level, not even the best machines can detect the precision i do" I make molds btw and i say +-1 thou for most stuff pff. its not that deep. (Piston and cylinder need a MINIMUM of 2 thou clearance, can go up to 6thou) so not even that is that deep my guy.

i wonder if any shop has enough jobs that they just never turn off the liquid nitrogen to avoid thermally cycling the tools

There is a special spray that u have to use lub it with

I worked for a company that ran nitrogen and its never got stuck while changing tools. It was very fascinating to run. Cuts down run time on titanium.

That's not what work hardening is. This won't stop work hardening.

Looking at the videos, apparently not?;)

Metal toughens up the colder it gets

@@garydos000 harder, but brittle.

@@garydos000 gets stronger, not tougher. as far as i know most metals get less tough as they get cold.

Лень -- двигатель прогресса )

Longest cycle time at my shop is just over three minutes. Those fan blades would be like having a vacation day: load the part on the morning, read a book, catch up on your shows, have a nap, unload the part at the end of shift and go home.

Easily modelled and compensated for

@@elanjacobs1 sure easily modeled but it's never gonna be the same thermal expansion throughout the whole part and you can forget this method when you have tolerances of +-0.01mm. Only application i see this in is in roughing of hard materials but leaving stock for regular finishing

@@maxis.5443 well I’m sure the only place fucking -321° F of cooling can really be used to any of its actual potential is probably in situations like that lol

pretty sure its in the description.

Cryogenically cooling hardened cutting tools actually causes the hardness to increase Check out cryogenic hardening to learn more

@@haydenc2742 yes but hardness and toughness are not the same thing. I'm thinking more towards the thermal expansion of the tip vs the rest of the cutting tool. Wouldn't there be a sharp temperature gradient?

คิดถึง okk. ,ที่Japan จัง

I rarely see such good comments on YT. Felt like I was on reddit for a second.

Definetly not worth it We had one Milling Machine with this setup After 2 years of use the Spindle bearings broke and went to space 😂 It exploded so hard due to inertia we tought the gas tank exploded This Technology is not new and there is a reason why is not globally used

Send it through as a liquid, allow it to have expansion where you need it. It will only become cool where it drops pressure…

@@LordOfChaos.x wow, my theory worked. I thought bearings would cease rather than explode.

@@Andrey222ful well they did, after seizing

Everything where it doesn't matter, how much it costs, maybe? Average home machinist probably doesn't have the money for a few dewars full of liquid nitrogen....

This is just a specialty item that works good for different things but is not really realistic. Also you introduce another hazard, some idiot will put this in his little shop and asphyxiate himself

@@tboniusmaximus3047 that was honestly my first thought, but then i figured "Surely there has to be some consideration for nitrogen build up" but youre right, that implies people arent idiots lol

The nitrogen ice might help as a lubricant, as well as air moisture condensing. The pressure would probably chase away the chips

Kill ourselves most probably 😉

Mayby u know the artist?

I found this "Ice Cavern - Azure Mines" But im still searching for exact variant used in this video.

@@sulefff thank you so much ..... U R my hero :))))

Do you know the name of the song?

@@nicktriplett9331 Nope, tried with Shazam "Misty Alpha Brain Waves" is the result, which does NOT coincide. Try search yourself, you might be luckier than me.