Technological support of the surface roughness of the spigots made of high-hard material "Relit" based on the optimization of the parameters of the centerless grinding mode

The current lack of a regulatory database on the designation of controlled parameters of the centerless external grinding mode for new hard-to-work powder construction materials, which include Relit, a two-component material, does not allow reasonably designate a combination of centerless grinding mode parameters that would provide the required quality indicators for surface roughness. On the basis of the developed optimization model, including technical limitations on the ranges of variation of the controlled parameters of the centerless grinding mode and the required roughness of the ground surface, supplemented by the adopted optimization criterion - maximum performance, polygons for solving the system of equations of the optimization model were established. On the basis of their developed quality maps on the parameter Ra of surface roughness, which are normative guidance materials for technologists on the choice of a combination of controlled mode parameters in the design of centerless grinding operations.