Flynn PP Motor Idea

[jake]

Cutting laminents will only effect the annealing of the lam very close to the cut.

By laser cutting, or no matter how you cut them?

[Drak]

JackH,

Cutting laminents will only effect the annealing of the lam very close to the cut.  In most casses this will not hurt them.

  Are you serious? Cool, because that was worrying me. So then I should be able to cut them with tin snips in this motor design and it not affect the output? I'm only using them for magnetic attractiveness, not for an electromagnet. You seem to have alot of experience with this thats why I'm asking. I read somewhere that sticking them in a cooking oven on broil for 4 hours would also aneal them, do you think that would work?


Drak

[longwolf]

From what I've read about the annealing, there's more to it than that.

Lowering the temp has to be done very carefully and over several hours.
Also the annealing chambers are filled with inert gasses to prevent oxidizing the plates.

Oxidizing could also be a problem if you use one of the water jet cutters.

[Tink]

Isn't rust a good electrical insulator to prevent eddy currents?
It could even be helpfull I think when the plates have an even layer of rust on them.
Just a thought
When you want to heat iron for a few hours and then slowly get them to cool down, take a charcoal BBQ put the iron plates in the middle of the charcoal and then light it.
Take them out the next day and you have a great end product!

[JackH]

Hello Drak,

When I cut my laminets and then put them togather, I sandwitch them between two aluminum plates with bolts.   After that I then machine them to the shape that I want.   I have tested them before and after the machining process, very small, if any problem with them.   One thing you may also want to consider is placing a piece of paper between each and every plate.   This will make sure that they are insulated from each other.   I always do that.  Takes some time, but it pay's off.  It is very importent that electrical current cannot travel between laminates. Also if you use bolts to hold them togather, make sure that they are insulated from the laminets too.


Don't try your oven on the laminets.  You will end up with junk.  The annealing process is very complicated.

Later,,,,JackH