Auto Cnc Machining Quality Inspector Interview Questions and Answers

Ra and Rz are surface roughness parameters used to measure the roughness of a surface.

• Ra is the arithmetic average of the deviations from the mean line of the surface profile.

• Rz is the average of the five highest peak-to-valley heights within a sampling length.

• Both parameters are commonly used in manufacturing and engineering to ensure the quality of machined surfaces.

• Ra and Rz values can be measured using a profilomet...read more