Solution – limit the arc of engagement
Using a programmed radius (circular milling) to reduce the arc of engagement and a radial cut will reduce the vibration tendencies, which will allow higher depths of cut and feed rates.
- Mill a bigger corner radius than stated in the drawing. This can sometimes be favorable, as it allows the use of a bigger cutter diameter in roughing, which maintains high productivity.
- Alternately use a smaller Dc cutter to mill the desired corner radius.
A programmed radius of 50% Dc is optimal.
For finishing, it is not always possible to have such a large radius; however, the cutter diameter should be no larger than 1.5 x component radius (e.g. corner radius 10 mm = max 15 mm).