I'm modifying an off-the-shelf 3 phase induction motor to run in an oil filled case.
I want it to have as little fluid resistance as possible. Therefore I want to cut the cooling fins and tits off of it.
I don't believe they will be needed anymore, since the oil will draw heat away from the rotor much more efficiently than air.
I want to chuck it up in the lathe and whack those puppies off, leaving a nice smooth surface.
I'm not too worried about the fins; I'm pretty sure those are not needed.
I'm not too worried about the balance weights; I'm pretty sure I can re-balance the rotor afterwards.
But I'm curious about the tits. Why are they there?
If this rotor had copper bars, I'd be leery about cutting the tits off, as that might sever the weld/solder/whatever between the bar and the end ring.
But I'm 99% sure this is a cast aluminum one-solid-piece squirrel cage. Wikipedia agrees:
I want it to have as little fluid resistance as possible. Therefore I want to cut the cooling fins and tits off of it.
I don't believe they will be needed anymore, since the oil will draw heat away from the rotor much more efficiently than air.
I want to chuck it up in the lathe and whack those puppies off, leaving a nice smooth surface.
I'm not too worried about the fins; I'm pretty sure those are not needed.
I'm not too worried about the balance weights; I'm pretty sure I can re-balance the rotor afterwards.
But I'm curious about the tits. Why are they there?
If this rotor had copper bars, I'd be leery about cutting the tits off, as that might sever the weld/solder/whatever between the bar and the end ring.
But I'm 99% sure this is a cast aluminum one-solid-piece squirrel cage. Wikipedia agrees:
So that's a solid chunk of aluminum, why the tits? Do they serve any higher purpose than my male tits? Any good reason not to cut them off?A very common structure uses die cast aluminum poured into the rotor after the laminations are stacked.