Method of calculating surface roughness during abrasive treatment

The article proposes a method for calculating the surface roughness during processing with abrasive tools, including tools made of SHS materials. The analysis of existing approaches to the calculation of the height of the micro-roughness of the treated surface during grinding, which took into account the depth of the layer cut by a single grain and the amount of plastic extrusion. Experimental studies of surface roughness have shown that with an increase in the grain size of an abrasive tool made of SHS corundum by 4 times, the value of Ra increases by 3 times, and with an increase in the hardness of the circle decreases. A comparison of the roughness of the treated surface of an abrasive tool made of SHS corundum with other abrasive materials (91A and 24A) shows that for a grain size from 6 to 16 it is 10-15% less, and for 25 to 40 more. Scientifically-based recommendations on the control of surface roughness parameters are proposed