8. Specifying Waviness


If we are controlling things like sealing in gaskets, or noise in bearings and gears, the longer-wavelength waviness may be more important than the 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 called waviness and what will be called roughness for our application. We also show how to specify waviness on a drawing so that we can measure and control it in production.