Posted by Gerald Lindell on June 12, 2001 at 14:52:10:
In Reply to: Bore Shrinkage After Heat Treat posted by Mel Eacker II on April 03, 2001 at 14:48:31:
I don't know what your part looks like but on long parts with a thin wall between bore and o.d (gear teeth) we have had the stresses cause the middle of the part to bow in. We resolved by breaking up the induction pattern into two seperate with a 1/4 inch wide soft section in the middle. If your part shape does not fit this description this wouldn't apply. Then I would expect no size change in bore (if parts have been normalized), even with 600 degree temper.
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