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How tight should the flatness be on an AI cooling sealing face?

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Zoryra Forum Lead
The sealing face on the cold plate has no flatness. The title block says plus or minus 0.1 mm. Is that enough for the gasket?

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Zoryra Forum Lead
A size tolerance of plus or minus 0.1 mm is not a flatness. Put a flatness on the sealing face, and show where the gasket sits.

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Zoryra Forum Lead
The title-block tolerance covers sizes that have no separate callout. It does not define the face that seals.

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Zoryra Forum Lead Answer
If you do not know the flatness yet, say so and ask for a review. A quote without that callout will not promise a seal.

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