Press fit and heat treatment question

asd108b · 2012-01-27T05:23:51+00:00

I have a metal disk with pins in it (~118mils diameter) that is part ofa grinder machine. I believe the disk and pins are both hardened steelsince it is used for grinding plastic flakes into powder but I have noidea what kind. I heated the disk to ~1100F for ~2hrs to burn off someresin that got stuck to it that I was grinding. After heating the plateall the pins are all loose. I did not realize that the pins were pressfitted into the disk.My question is, can I reverse the process by reheating. Should I heatthe metal plate without the pins in it. Will quenching the plate causethe holes to shrink further ? Any thoughts or ideas would be greatlyappreciatedThanksAndy

Jan 27, 2012 20 Replies

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Michael A. Terrell 14 years ago

It was a typo, plane & simple. ;-)

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Press fit and heat treatment question

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