@DanFrederiksen no we need better materials. both for the tool and especially the workpiece. If fanblades and attachment would withstand higher forces we wouldn't need a blisk in the first place. Not even for a Eurofighter (if I'm not mistaken, that's what the fan there is for.)
GUAO LO UNICO QUE PUEDO DECIR ES QUE ARRECHO LA PROGRAMACION DONDE ESTAN ESTAS MAQUINAS CUANTO CUESTAN Y SI ALGUNO LA TIENE EN VENEZUELA...UFF MI SEGUNDO AMOR EN LA VIDA LAS MAQUINAS...
@SPUNKKK Some of these rotors (as you'd find in turbines, turbo pumps and centrifuges) can have half a million to a million G on them when they're running at full speed, which means a single gram of imbalance will then become one ton's worth of load, whirling around a hundred thousand times per minute. The thing will pretty much 'explode' when it fails, as it will contain about the same amount of energy as a stick of dynamite at that speed. It all needs to be one, homogeneous piece.
the actual time to machine it is 94 hours and 48 minutes. It is almost 4 full days of machining. The waxy substance between the blades is most likely paraffin wax.
Nice demo part. I can't see this being for production when you could do a wax and investment-cast it in perhaps two or three days rather than two weeks on what I assume is a very expensive machine.
Some are investment cast on a blade by blade basis as well, depends who's making the turbine, but they still use similarly super controlled heat treatment schedules. Model turbines for RC planes have their entire disc cast in one go. No need for the insane levels of heat treatment there, with it effectively being an expensive toy as opposed to something that'll kill hundreds of people when it goes wrong
Piece = Inconel, Material = Titanium? Make yer minds up maties! It'll be Inconel anyway being a turbine disc.
Investment casting wouldn't be too expensive capital wise to get it running. Jewelers absolutely love the process because it's so easy to knock up a mould, then do tree, you wouldn't even need a tree for the disc. But I doubt you'll get usable surface quality. Full size turbine blades are press formed from blanks. And the heating parameters ludicrously precise - monocrystal structures
Half a million in machining time? Someone must be printing money with that kind of hourly rate. I know no machine shop which would be able to pull exess of 2000 USD or Euros per hour.
I would estimate that this part would cost around 30 - 40 000 euros to machine. Cost of fixtures and material on top of that.
This is why these parts are often cast and then machined instead of being machined out of a solid billet. With the amount of time necessary to machine one of these out of solid Inconel it is not practical to produce in that manner.
depends on if it's just one piece, or hundreds of pieces, thousands of pieces. if a small number of pieces, machining is the way to go because of pattern making for the casting.
because inconel is a tough material to cut in fact one of the toughest and the length to diameter ratio of the tool is unfavorable for side or slot milling, plunge milling generates about 70% less side force which is ideal for long tools to work effectively
On such long tooling, plunging is preferably used because the forces applied on the tool are upwards and using the strongest axial cut direction of any tool. Long reach tools like these would chatter trying to maintain the same mrr (material removal rate) cutting against the tool... Side cutting with any tool puts more forces vs. cutting down parallel with the spindle. Does this make sense to you? I can’t clearly see the tool to tell you which one is it.
They have collision problems. The fixture is to high. To much compensation movements. Ceramic tools?No. Plunge cutting? No. Trochoid milling? No. To avoid fibrations they reduce feeds and speeds. There are swiss machines showing a much faster process.
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wouldn't it be easyer and faster to make a wax model and use the lost wax technique ?
Choice777 1 month ago
@Choice777 Good luck! Inconel is some pretty specialized stuff, for some very specific applications. You can't just melt it and pour it into a mold.
evbunke2 4 weeks ago
Nice music
mentalabsence 4 months ago
what happens at 4:05?
myth446 9 months ago
have you americans stopped using old fasioned letter combinations for feedrate and stuff like that ????
speed=n
feedrate=Vf
feed=Fz
number of teeth=Z
cutting speed=Vc
TheBodvarg 9 months ago
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@TheBodvarg No. Have you stopped beating your wife?
BuickDoc 9 months ago
it looks very nice but that's way too long for a single piece. we have to make better production techniques
DanFrederiksen 9 months ago
@DanFrederiksen no we need better materials. both for the tool and especially the workpiece. If fanblades and attachment would withstand higher forces we wouldn't need a blisk in the first place. Not even for a Eurofighter (if I'm not mistaken, that's what the fan there is for.)
skaterfugater 6 months ago
Regardless of being machined from a single piece of alloy, that piece must still be balanced using special balancing equipment.
apage251 11 months ago
being u have like a couple hundred hours in one part does that mean that piece cost like 100k plus?
mattprs3 11 months ago
What keeps the blade from chatter which would also take it out of balance as well.The fact of such high sf,or light cuts and posotive rake angle?
mattprs3 11 months ago
Looks like LM2500 stg 0 Blisk????
schaapzak 1 year ago
GUAO LO UNICO QUE PUEDO DECIR ES QUE ARRECHO LA PROGRAMACION DONDE ESTAN ESTAS MAQUINAS CUANTO CUESTAN Y SI ALGUNO LA TIENE EN VENEZUELA...UFF MI SEGUNDO AMOR EN LA VIDA LAS MAQUINAS...
DETHMETALTRASH 1 year ago
awwww this is pure awesomness!!
WolfenGeist 1 year ago
It has to be one part because of ridgidity reasons. Stiffness, exact geometry, one material only etc.
bagalut 1 year ago
What is the waxy substance?? Häääh.
It is just coolant sticking to the blade walls. Like rain on a wiped window.
Oily rain for sure. No wax.
Casting needs perfect homogenity inside the material. Welding is unuseful as well.
bagalut 1 year ago
thanx ..i am doing my projcet on variable axis blisk machining
MrPrem76 1 year ago
Comment removed
SPUNKKK 1 year ago
@SPUNKKK No. (Oviously) ^_^
hazzard77 1 year ago
@SPUNKKK Haha, you're not into these things i guess? xD
They'd be welding if that'd work xD
StickerMedia 1 year ago
@SPUNKKK Some of these rotors (as you'd find in turbines, turbo pumps and centrifuges) can have half a million to a million G on them when they're running at full speed, which means a single gram of imbalance will then become one ton's worth of load, whirling around a hundred thousand times per minute. The thing will pretty much 'explode' when it fails, as it will contain about the same amount of energy as a stick of dynamite at that speed. It all needs to be one, homogeneous piece.
lexichronicle2 1 year ago
you would cry if the apprentice dropped it.
The wax is to stop chatter (vibration) on the finishing passes
dargonz350 1 year ago
the actual time to machine it is 94 hours and 48 minutes. It is almost 4 full days of machining. The waxy substance between the blades is most likely paraffin wax.
acuchemkid2007 1 year ago
yes it is awesome can any one tell me the name that wax type of fixture (white color) between the blades at the time of finish machining.
MrPrem76 1 year ago
@MrPrem76 It is most likely paraffin wax.
acuchemkid2007 1 year ago
@MrPrem76 another thing I thought it could be is lard.
acuchemkid2007 1 year ago
that is a serious ceiling fan
taystew 1 year ago
Nice demo part. I can't see this being for production when you could do a wax and investment-cast it in perhaps two or three days rather than two weeks on what I assume is a very expensive machine.
YoungJim409 1 year ago
"Tool Lenght"
I hope their machining is more accurate than their typing.
kylep2 1 year ago
Some are investment cast on a blade by blade basis as well, depends who's making the turbine, but they still use similarly super controlled heat treatment schedules. Model turbines for RC planes have their entire disc cast in one go. No need for the insane levels of heat treatment there, with it effectively being an expensive toy as opposed to something that'll kill hundreds of people when it goes wrong
lexichronicle 1 year ago
Piece = Inconel, Material = Titanium? Make yer minds up maties! It'll be Inconel anyway being a turbine disc.
Investment casting wouldn't be too expensive capital wise to get it running. Jewelers absolutely love the process because it's so easy to knock up a mould, then do tree, you wouldn't even need a tree for the disc. But I doubt you'll get usable surface quality. Full size turbine blades are press formed from blanks. And the heating parameters ludicrously precise - monocrystal structures
lexichronicle 1 year ago
Spindle Speeds were 500-1200 rev/min. Maybe the video shouldn't be called high speed machining.
MahdiEynian 1 year ago
Half a million in machining time? Someone must be printing money with that kind of hourly rate. I know no machine shop which would be able to pull exess of 2000 USD or Euros per hour.
I would estimate that this part would cost around 30 - 40 000 euros to machine. Cost of fixtures and material on top of that.
maikeydii 2 years ago
This is why these parts are often cast and then machined instead of being machined out of a solid billet. With the amount of time necessary to machine one of these out of solid Inconel it is not practical to produce in that manner.
douro20 2 years ago
depends on if it's just one piece, or hundreds of pieces, thousands of pieces. if a small number of pieces, machining is the way to go because of pattern making for the casting.
graffitiballz 2 years ago
wonder what the wax type material is they use to stabilize the blades
graffitiballz 2 years ago
184 hours 21 minutes... that's more than a week
douro20 2 years ago
Wouldn't that be almost half a million dollars in machining time?
douro20 2 years ago
yeah, and working 8 hour days, thats 4 and a half weeks!
graffitiballz 2 years ago
@graffitiballz tbh tho m8, i think a company like this, making these types of parts would be running 24 hrs a day.
danway60 1 year ago
Italian machine...
douro20 2 years ago
Vaya pedazo de mecanizado , además como el turron...del duro
flouserve 2 years ago
Awesome program / tool path
can any one explain why plunge milling is chosen for roughing and its advantages, and name of the Roughing tool
ravikumarjp 2 years ago
Because if done right, plunge milling can remove stock really fast.
gulch1969 2 years ago
because inconel is a tough material to cut in fact one of the toughest and the length to diameter ratio of the tool is unfavorable for side or slot milling, plunge milling generates about 70% less side force which is ideal for long tools to work effectively
nodnarbnoob 2 years ago
@ravikumarjp
On such long tooling, plunging is preferably used because the forces applied on the tool are upwards and using the strongest axial cut direction of any tool. Long reach tools like these would chatter trying to maintain the same mrr (material removal rate) cutting against the tool... Side cutting with any tool puts more forces vs. cutting down parallel with the spindle. Does this make sense to you? I can’t clearly see the tool to tell you which one is it.
jtjoser 2 months ago
Dear God, 93 hours to machine!!!!
dangunit69 2 years ago
i know thats unbelivable, i thought 45minutes was an eternity for cycle times!!
nodnarbnoob 2 years ago
Any collision problems are down to bad cam->machine postprocessor programming.
Not saying it would be easy to write that post but the machine looks awesome.
Worth the bother.
edshift 2 years ago
They have collision problems. The fixture is to high. To much compensation movements. Ceramic tools?No. Plunge cutting? No. Trochoid milling? No. To avoid fibrations they reduce feeds and speeds. There are swiss machines showing a much faster process.
TheMSvids 2 years ago
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Your just a gay man with problems is all. Get some help......Ya sure bull tit.. Thats it.....I do appreciate your not sending me anymore gay messages though . Maybe I should E-mail your boss and let him know how Anti-American AND gay you are also . Gay AND Anti-American . I dont think he will like it ..
maddogtannen1966 2 years ago
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Abovegroundminer: You just sent me ANOTHER message ! IM NOT INTERESTED ! ! Im not gay...at all ! Please quit E-mailing me with your Gay fantasies . If you are fine....Its none of my business , Im just not interested . I you dont stop Ill have to contact You Tube . Please stop now....
maddogtannen1966 2 years ago
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Abovegroundminer 2 years ago
Cool and Precise! One hell of a program!
Macro Hell!
I would like to trade you 100lbs of mexican jumping beans for one of these machines!
P.S. I could swing the shipping if it's a even trade..
Abovegroundminer 2 years ago
That is awesome !!!!
Speed796 2 years ago
Amazing 5strs
dgalvarez 2 years ago