A component of surface texture is called as surface roughness. Also, it plays a crucial role in determining the character of the surface. Direction deviation of the normal vector from its original form is quantified using surface roughness. Here is the online turning surface roughness calculator to calculate the roughness of the material by entering the inputs in the required field.
Consider that the cutting feed is 3 and tool nose radius is 4 inches, then calculate surface roughness.
Ra = ((32 / (4 x 24)) x 1000000) x 1.11
Ra = 104062.5 Î¼in