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Dose liquid nitrogen shrink installation cause stress residue

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Joe Chen

Joe Chen

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Dear All

Due to the inner diameter (340 mm) of the bushing is required in the post-lathe process, how long does the liquid nitrogen shrinkage fitting installation need to stress relieve before precision machining to the finished size.
 
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What are the materials involved? Some materials will take a permanent dimensional change if cooled in liquid N2.

Johnny Pellin
 
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There will remain internal stress at long as there is an interference fit.

Ted
 
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