The feed rate smaller than the width of the chamfer is beneficial to machining, so that the cutting edge is

subjected to compressive stress. If the feed rate is bigger than the width of the chamfer, the cutting edge of

the cutting tool is not only subjected to compressive stress, but also bears shear stress in some very serious

cases. In the case of intermittent processing, sometimes the feedrate has to be reduced to reduce the cutting

pressure so that a large amount of heat is transferred to very thin chips.

The best method for overcoming intermittent cutting is: select a bigger negative chamfer, reduce the feed rate,

and the corresponding cutting speed.

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