Question

Roughness of surfaces​

Answer 1

Answer:

The surface roughness chart allows designers to predict a number of factors such as the amount of generated friction between two contacting surfaces, the performance of braking systems and determine the accuracy and precision of machining tools or methods.

Explanation:

Surface roughness often shortened to roughness, is a component of surface texture. It is quantified by the deviations in the direction of the normal vector of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth. In surface metrology, roughness is typically considered to be the high-frequency, short-wavelength component of a measured surface. However, in practice it is often necessary to know both the amplitude and frequency to ensure that a surface is fit for a purpose.