Factors of surface roughness formation
The surface formed by cutting or other methods of parts always has geometric shape error due to plastic deformation of materials, mechanical vibration, friction and other reasons in the processing. Due to the different processing methods and workpiece materials, the depth, density, shape and texture of the traces left on the machined surface are different.
Effect of surface roughness on workpiece
Surface roughness has an important impact on the service life and reliability of mechanical products, as follows:
Influence wear resistance
Affect the stability of the fit
Influence fatigue strength
Influence corrosion resistance
Affecting the tightness
Influence contact stiffness
Influence the measurement accuracy
Other effects on liquid, gas, current, resistance, reflection, radiation, etc