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topic 2555

Flaky anodize


(1999)

We have some black anodized 2024-T851 piece parts which exhibit flaking of the anodize, exposing the base metal. The parts see a thermal cycle of -50C to 160C with a ramp rate of 3C/min. We have used this cycle previously and have never experienced flaking. Could this be attributable to poor surface preparation prior to anodize and/or improper anodizing conditions?

Bill Park



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