Anodizing Layer Thickness Measurement: Eddy Current vs Cross-Section Microscopy for Aluminum Drinkware

Fifteen years of quality control work taught me that anodizing thickness directly correlates with corrosion resistance and color consistency in aluminum drinkware. Yet most manufacturers rely on outdated measurement methods that introduce 15-20% error margins. The difference between eddy current testing and cross-section microscopy isn't just about precision—it determines whether your entire production batch meets specification or gets scrapped.

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