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"Surface Roughness Basics: ISO 25178 Guidebook"

Learn about 3D surface roughness parameters, when to use them, and what they mean

Surface roughness plays a critical role in functional performance and quality control. This document introduces the fundamentals of surface roughness with a focus on ISO 25178 areal parameters, explaining how 3D texture is quantified beyond traditional line-based metrics. It also reviews common measurement technologies, helping readers understand how different tools capture and analyze surface texture.

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