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Old 7th July 2007, 03:13 AM   #1
jnb is offline jnb  Australia
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Default Straightening a warped stator

I ordered 4 stators of 1200 x 240mm and one looks like this. How can I flatten it?
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Old 8th July 2007, 07:11 AM   #2
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You could make a frame. It would be very hard to fix that perfectly.

Edit: Sandwich it between two pieces of 3/4" plywood and park you car on it overnight.
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Old 8th July 2007, 07:36 AM   #3
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Default Why don't you...

talk to a pro at an auto body shop. It won't cost to ask.
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Old 9th July 2007, 11:37 PM   #4
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Ask someone who works in a machine shop or sheetmetal shop, as they will have the press to bend it back and the flat surface to check it against.

(Just holding it flat won't work: It needs to be taken past the yield point.)
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Old 10th July 2007, 12:32 AM   #5
SY is offline SY  United States
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You may find that when you assemble it into a sandwich under pressure, the resulting cell is flat. My stators have a noticeable bow unassembled, which straightened out beautifully when I glued the whole shmeer together.
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Old 10th July 2007, 02:00 AM   #6
jnb is offline jnb  Australia
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Quote:
Originally posted by Tosh
Just holding it flat won't work: It needs to be taken past the yield point.
Quote:
Originally posted by SY
You may find that when you assemble it into a sandwich under pressure, the resulting cell is flat. My stators have a noticeable bow unassembled, which straightened out beautifully when I glued the whole shmeer together.
Great to hear that close enough may be OK. The other three have a slight and simple warp which I suspected would work well enough.

I was thinking of parking my car on it like ak_47_boy suggested. I somehow knew what Tosh says is true, and I hope that by leaving it for a while the thermal cycling may give it what it needs.

I guess since I was planning to use 1/16" spacing and foam double sided tape, and due to my inexperience I was afraid it wouldn't be good enough.
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