Figure 2—A stylus measurement of surface roughness on a shaft (left), and a 3D measurement of the surface texture (right). These measurements show both the roughness and a larger, residual tooling pattern, both of which may impact the performance of the part.
Figure 3—Very different surfaces, all with the same Ra value. Courtesy of The Surface Texture Answer Book.
Figure 6—Analysis software includes many parameters to control various aspects of the surface texture. TraceBoss software courtesy Digital Metrology.