Heavy Machining | Seco Tools 

better for me when it's inco 718 turnings. they are worth more.

Agreed.

Too bad I never hear it due to ear protection

They sound like a bunch of end wrenches falling, lol.

The duck quaking noise?

Thanks for letting know

Is that normal for a wind turbine to have a 25.5 metric ton rotor shaft? This seems absurd

@@thedillestpickle you have to think of the scale they're on the average size of the machine space (the boxy shape behind the rotor) on 6MW models is larger than most houses (even the relatively small Haliade 150-6MW has a machine space that has 3 floors, each at around 30 m^2, not including the red platform)

Why no coolant

@@angrydragonslayer Pretty crazy. I wonder if these start off as a forging.

It's like music :3

jcims hello 🙂 why do say that?

@@SecoToolsAB When I look at a piece of metal I have some kind of internalized representation of its strength. It will cut through most anything if sharp, it will bend if you really crank on it, it will scratch but you aren't going to shape it like putty without extreme force. I know an 1/8" bar of hot rolled steel is going to bend way more than a razor blade before it breaks, but I don't really know how they will fare against each other. To see one piece of metal dip into another one and just shave seemingly endless chips without any drama lets you know there's a hierarchy in metals, and that in that regime some metal might be like wood and others like butter. Nearly all of this comes to us through materials science, where you throw away the intuition and use hard data to develop materials and make them into something that can be manufactured. Just my $.02 :)

You mean it cut so smoothly?

This heavy duty lathe with a power 195 Kw .. The tooling solution is SCMT38 insert with a +ve cutting edge.

Samuel Mason thats not too far off, I rough machine rotor shafts similar like that and we leave 1/4" stock on. but we have plus or minus .020

no problem. You just call the foundry and ask them to cast the housing 2% smaller ;)

Kurtis Lee half in depth of cut omg

Kurtis Lee What was the diameter and what was the RPM?

It is a forging

Agreed, would be cool for size refference

better yet show the video of a chip instantly burning its way into the sole of your work boot.

Mikishots There’s no tool steel in this video.

nice.

the heat goes into the chip mostly. the insert doesn't tend to become more than 200 degrees. and its made out of tungstoncarbide which got a really high melting temp.

@@craazyy22 I think the tungsten carbide is held together by cobalt which actually melts at a much lower temperature then tungsten carbide. But still a high temp.

Hi see

No engineer. .... specialized worker

its called "roughing" machining. getting lots of extra material off the workpiece in the shortest amount of time, leaving sufficient material on both diameters and lengths for subsequent operations. many times after roughing these raw forgings need stress relieving before finishing operations begin.

+patatashka d Nie ma jak toczenie płaskowników na gotowo :-)

they are probably real sharp

This component forging weighs 40 000 kilograms. Such huge machines are generally not equipped with coolant facilities. Tungsten Carbide can cut without coolant, no issue. The cutting speeds are low here 40-50 metres/minute

nick168jetski They would knock you right out lol

nick168jetski YOU WOULDN'T EVEN WANT THEM TO TOUCH YOUR SKIN- THEY ARE COMING OFF BLUE- AND THAT'S HOT ENOUGH TO CAUSE SECOND DEGREE BURNS!!!

nick168jetski going in your eye, it would rip your fucking face off. That's insane

They have a knack of pinging down your shirt front causing instant dancing and a cause for hilarity for anyone watching. 3rd degree burns not cool.

Steve Inczedi Any turner worth his salt has a glut of burn scars on his chest/collar.

Many modern lathe tooling inserts are built to take the heat and pressure generated by machining operations. Coolant is normally used in operations where heat could cause the part to warp, or to help clear chips, such as in a trepanning operation.

70-100 min. is possible with a proper carbide grade (ISO P25) ... This component forging weighs 40 000 kilograms. Such huge machines are generally not equipped with coolant facilities. Tungsten Carbide can cut without coolant, no issue. The cutting speeds are low here 40-50 metres/minute

That is a poetic one

Gopala krishnan 718 chips sound like music.