Exploring workpiece surface quality formation with abrasive dynamics in centrifugal-rotary processes

Abstract

This article presents the results of research on centrifugal-rotary processing in an abrasive medium. The dynamic characteristics and rotational processes of an array of abrasive granules in the machine chamber are investigated with the aim of determining the motion velocity, contact pressure and energy of the particle flow. These research data will be used in modeling a single interaction of abrasive granules with the surface of a workpiece and obtaining quantitative estimates of material removal rates and parameters on surface roughness of the workpiece and obtain a valuation of material removal rates and workpiece surface roughness parameters. The deformation of granular mass under the action of centrifugal force was performed using the finite element model in the Comsol Multiphysics package. The velocity fields and pressure in the mass of the load are identified. The dependency is obtained to calculate the maximum penetration depth of abrasive particles into the workpiece surface, metal removal and surface roughness. The dependencies are obtained to calculate the maximum penetration depth of abrasive particle into the workpiece surface, metal removal and surface roughness. CAD TP block has been developed to optimize the centrifugal-rotary machining, allowing a significant expansion of the range of computer-aided design systems.