The basic concepts of self rotary cutting tool is presented firstly,and the cutting force be analyzed theoretically,the relationship between cutting force and inclination angle,diameter of round insert and cutting speed is experimentally researched with self rotary face milling cutter.

Study of Influence of Cutting Edge Inclination on Rake Angle;

So,a cutting angle of PDC cutter under drilling with lateral movement is given a strict definition,the calculating formula of the inclination and cutting edge inclination at any point of blade contour is then deduced and the influencing rule of bit's lateral drilling rate on a cutting angle.