Notepad Series Video: Specifying Waviness

In applications such as controlling sealing in gaskets or noise in bearings and gears, longer-wavelength waviness may be more important than shorter-wavelength surface roughness. In this video we look at how we extract waviness from surface texture data, using a “cutoff wavelength” to determine what will be considered waviness and what will be considered roughness for a given application. We also show how to specify waviness on a drawing so that we can measure and control it in production.

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