OBRABOTKAMETALLOV Vol. 25 No. 3 2023 technology Fig. 12. Removal of metal at the angles of inclination of grinding motor It can be seen from the graph (fig. 12) that the maximum metal removal is achieved at the maximum angles of inclination of the grinding head, where the width of the grinding track is minimal. The effect of the longitudinal feed of the grinding wheel (the speed of movement of the grinding trolley) on the metal removal can be seen in fig. 13. With an increase in the longitudinal feed, the difference in the values of metal removal increases, which can be seen on the graph. For a grinding wheel rotation speed of 5,000 rpm, the speed of grinding trolley movement equal to 15 km/h is maximal, after which, with an increase in the longitudinal feed, a decrease in metal removal begins. Also it can be seen from the graph (fig. 13) that at 5,000 rpm, it is possible to achieve the target for metal removal of 0.2 mm at speeds of RSHP not exceeding 20 km/h. Approximating the data obtained by the average values of metal removal, we can make a conclusion about the possible modes of operation of the RSHP at high-speed grinding according to the performance criterion: 5,000 rpm – 15 km/h; 6,000 rpm – 20 km/h; 6,500 rpm – 25 km/h and 7,000 rpm – 30 km/h. Fig. 13. Dependence of metal removal on grinding modes
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