Surface Finish Constraint
This constraint restricts the maximum feed that might be utilized to attain the required surface finish on the machined feature. This constraint becomes active throughout finish turning. The expression for CLA value of the geometric surface finish obtained during turning operation along a tool of nose radius r is given as following:
Equation 1
Based on the surface finish, SFmax fixed on the turned surface, the constraint on feed can be described as:
Equation 2
