COMPUTER-AIDED DESIGN SYSTEM FOR DETERMINING OPTIMAL PARAMETERS OF THE COATINGS GRINDING

Abstract

While searching for optimal parameters of plasma coatings grinding, available CAD systems produce significant deviations due to the fact that they neither take into account reducing losses of the material as an optimality criterion nor meet the conditions of zero-defect surface processing. Therefore the developed plasma coatings grinding CAD system should include modules of the designed object characteristics analysis, temperature fields and stresses modelling, grinding parameters optimization and checkup strength and fracture criteria when the required surface roughness is reached. In this paper the structure of such a CAD system is built and the user interface of the according programming appliance is presented. In order to determine optimal parameters for the coatings grinding process, an evolutionary search is carried out on a set of feasible solutions formed on the basis of the features of plasma coatings materials and technical characteristics of the grinding wheel and the grinding machine. Obtained results consisting sets of optimization problem solutions, plots and the algorithm performance protocol are displayed through the user interface. Practical experiments that were carried out during this research confirm an increased productivity of the plasma coatings grinding process and reduced number of defective parts when applying grinding parameters determined in the designed CAD system.