Characteristics of Magnetic Elastic Abrasive Particles and Their Effect on Tool Passivation

Abstract

Abstract Magnetic elastic abrasive particles are a new type of particle that combine the characteristics of magnetic abrasive particles and elastic abrasive particles by embedding magnetic media and abrasive particles in a particular proportion into a flexible polymer to form particles with a specific shape. First, a method for preparing magnetic elastic abrasive particles is proposed. A representative micro-unit model of magnetic elastic abrasive particles is established using 3DMAX software. The finite element software ABAQUS is used to analyze the micromechanical properties of magnetic elastic abrasive particles with silicon carbide (SiC) and alumina (Al2O3) particles as the abrasive phase, respectively. Secondly, based on the characteristics of double disk magnetic force passivation of magnetic elastic abrasive particles, a method is proposed to predict the life of magnetic elastic abrasive particles by predicting the surface roughness of the tool edge. The effects of particle size and abrasive phase on the wear and life of magnetic elastic abrasive particles are studied experimentally. Finally, the magnetic field force is analyzed, and a mathematical model of material removal for magnetic elastic abrasive particles is established based on the characteristics of the mixing phase. The effects of particle size and abrasive degree on material removal volume are studied, and the influence of magnetic elastic abrasive particle size on tool passivation is experimentally analyzed. A comparison is made with the vertical rotary passivation method. The superiority of the magnetic elastic abrasive particle passivation method is verified by examining the passivated tool's edge profile, surface roughness, and service life.