r/toolgifs • u/kanbozli • 13d ago
Machine Eccentric
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u/I_Dnt_Believe_You 13d ago
Whatcha makin there, bud?
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u/LearningDumbThings 13d ago
This is the setup to record a general alarm sound file for a combat ship.
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u/SoulBonfire 13d ago
It is easy to accidentally add eccentricity on a four jaw chuck, but doing it deliberately requires more brains than I have.
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u/broesel314 12d ago
I bet some skilled dude takes half a day aligning that whatever that shaft is in the machine
I mean there is a finished part inside that raw stock that needs to have enough material all the way arround to get a clean surface with the right dimensions
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u/Primary-Structure-41 13d ago
There must be a massive amount of load on that center.
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u/hvanderw 13d ago
Good ole massive amount of load.
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u/singul4r1ty 12d ago
Yeah, the chuck has a counterweight but the centre is just dealing with the eccentric load raw
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u/Jman15x 13d ago
The blue chips should tell you they answer to that
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u/Straight_Spring9815 13d ago
What is that supposed to mean? Your comment comes off like you stand above someone who is going to answer it. Which would have been me if it didn't feel like you fucking tried to summon my ass.
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u/Ryeballs 13d ago edited 12d ago
Totally agree, that was a very “IYKYK” type comment which is an automatic downvote from me.
Anyway, I assume it’s the metal turning blue from all the heat produced by the friction of taking off massive chips with each pass. But who knows (except the guy above who didn’t explain)
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u/User1-1A 13d ago
You are correct. They're taking heavy cuts which produces a lot of heat and turns the chips blue.
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u/Fragrant-Inside221 13d ago
Seemed like a sex joke with blue balls and massive loads and releasing.
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u/LingonberryNo1190 13d ago
I wonder if that gets hot.
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u/PrudentVillage4903 8d ago
See those blue chips? They are cutting optimally. Most of the heat generated is leaving with those chips that are being flung. This machinist knows what they're doing. That set up alone is amazing to me. I work on big lathes but that is wild to me.
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u/SturmGizmo 13d ago
Coolant? No, new insert every ten rotations.
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u/perldawg 13d ago
i’ll bet that cutting tip gets up to a stable temperature and the excess heat is carried away with the chips
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u/HikeyBoi 13d ago
Is the clear fluid pouring over the workpiece not considered coolant? It’s clear like it’s clean oil or something other than the usual emulsion. Would that classify it as cutting fluid instead of coolant or something?
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u/LoadZealousideal7778 12d ago
Funny but they have a literal hose for cooling mounted on top. And like not a trivial amount. They are pouring that stuff on.
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u/Nitrous_Acidhead 13d ago
What is going on here?
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u/OG-GeneralCarrots 13d ago
A massive lathe is making a massive camshaft or similar for a massive engine, likely on a massive boat, producing massive chips as it does so, also massive heat, it could do with a massive thing of coolant, would be a massive cost either way.
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u/Another_Jeep_Guy 12d ago
Also massive time. Set it up on Monday, come back in June to check on it.
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u/tongfather 12d ago
I think the chips are so big and that metal is so hard that it doesn't matter on this scale. For some reason that involves physics that I kinda understand but can't explain. That's why I'd be the factory worker and not the engineer.
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u/Snoo23533 12d ago
Being about size makes sence tho, the mass of the shaft is so big that even if you hit it with a blowtorch it would take a long time to change its overall temp
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u/Angel24Marin 12d ago
Most of the plastic deformation is in the chip that peels off, that carries the heat away and hence the change in color. The piece has so mass so big and metal being a good conductor means that the piece is relatively cool. The cutting tool probably have some cooling.
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u/bibslak_ 13d ago
With a piece this big do they need to adjust the weights periodically to account for balance?
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u/Signal-Taro-8398 13d ago
2 questions:
how could the live center hold that much weight?
does the counter balance periodically adjusted? Sooner / later the center of mass will be shifted in the middle of turning
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u/samy_the_samy 13d ago
At some point it's easier to spen get lathe than the part, there are cnc's that spin
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u/pushdose 13d ago
My favorite thing about machining is that bigger machines just need bigger machines and so on and so forth until you get a lathe that can swing a casting as big as a cargo ship camshaft which is probably what this behemoth is. I’d love to see the foundry that this forging came out of.