Results of Milling Superhard Surfaces With an Interlocking Side Mill

The papder objective is to find the rational parameters of the cutting mode with a special SKIF-M interlocking side mill for superhard (HRC 65 and more) surfaces. The study results are the following: the rationality of using an interlocking side mill in comparison with monolithic carbide end mills is shown, the area of rational parameters of the cutting mode with this mill is given. It is found that the most rational use of a mill is at a cutting speed of 50 m/min, a cutting depth of 2 mm and a feed per milling tooth of 0.05 mm. It is shown that an increase in cutting speed, cutting depth, or feed to the tooth is irrational. Conclusions: 1. The objective is achieved by experimentally examining the mill's operability for a wear resistance period of 0.5 mm under different operating conditions. 2. It is found out that with increasing cutting depth, the durability period decreases significantly and becomes critical at a cutting depth of 3 mm. The novelty of the work: the areas of rational use of a special SKIF-M mill for treating surfaces of HRC 65 and more are established.