Vertical wall surface accuracy

Vertical wall surface accuracy (surface roughness of a vertical face) when shoulder milling is greatly influenced by the cutting edge geometry.


Theoretically, if the axial rake angle of a face milling cutter is 0, a true vertical surface will be produced. However, axial rake angles other than 0 are used in most cases to improve sharpness and to reduce the impact generated when entering the workpiece. In this case a vertical wall will not be produced.


- The reason for this is explained in

the animation to the right.