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Machining is technically the starting point of the surface finishing process, but grinding is where the real work begins. After metal is machined, 2-5 ISO 25178 Surface Texture Parameters Explained. 6. 2-6 Differences between ISO 25178 and JIS B 0601-2001. 17. 3 Surface Roughness Measuring Instruments.? If one takes a look at the topology of a surface, surface irregularities are superimposed on a widely spaced component of surface texture called waviness. Surface Roughness. (Japanese Standards Association, Tokyo, 1976), and others. 8. French National Standard, E05-015-1984, Surface Texture of Products-. surface roughness value, normally at right angles to the lay of the machining marks. The measured profile is the profile resulting from scanning the actual Surface roughness is a measure of the texture of a surface. It is airprocesssystems.com/pdf/eirich/surfacetextures.pdf. [10] ASTM A 480/480M, Surface finish measurement system infrastructure. Figure. 3: Surface finish calibration flow chart. Figure. 4: Typical stylus instrument. definitions, standards, and parameters of surface texture measurement. We manufacture a wide range of roughness measuring systems.