Viktor,
Like most members here I have no belief that our academics can give an applicable solution (science) for a workshop practice, at least in the near future.
Until this exact science is delived it is probaly more interesting and useful to know how our machinists cut a certain material on...
I agree that a right way is to use available databases from both cutting tool makers and metal makers, at least for start. However the first usually provide "safe" cutting chart to protect their tools while the later may give "enhanced" data to promote materials. One need to...