Based on the random distribution characteristics of diamond abrasive grain size,concentration,and grain position on grinding wheels,a study was conducted on surface topography modeling methods for diamond grinding wheels.Surface topography models were established for three diamond grinding wheels with concen-trations of 100%and grain sizes of 80/100,170/200,and 325/400 respectively.The JH-2 model was em-ployed to describe the constitutive behavior of alumina ceramic materials.Finite element simulations of alumi-na ceramic grinding were performed using the three grinding wheel topography models under different process parameters.Surface topography of the machined alumina ceramic finite element mesh models was analyzed by examining nodes of the finite element model grid.Based on the removal forms of alumina ceramics and the sur-face topography characteristics after grinding observed in simulations,the influence of diamond wheel topogra-phy and grinding depth on the surface roughness of alumina ceramic materials was analyzed.This study valida-ted the feasibility of the finite element simulation analysis method for alumina ceramic grinding.
grinding wheel modelingalumina ceramicsfinite element simulation
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