Study of Different Types of Magnetic Elastic Abrasives on Tool Passivation
In order to study the effects of different types of magnetic elastic abrasives on tool passivation,silica gel and epoxy resin were used as viscoelastic matrix,alumina(Al2 O3)particles as abrasive phase and iron particles as magnetic phase to prepare silica gel type magnetic elastic abrasives and epoxy resin type magnetic elastic abrasives respectively.Based on the magnetic field characteristics of the double disc,the 3D model of the double disc magnetic field was established using Maxwell software,and the magnetic field strength and magnetic induction strength of the double disc magnetic field and magnetic elastic abrasives were analyzed.The fine-scale unit model of the magnetic elastic abrasives was also established,and the fine-scale mechanical properties of the two magnetic elastic abrasives were analyzed using ABAQUS software.Finally,based on the double disc magnetic passivation equipment,the effect of two kinds of magnetic elastic abrasives on tool passivation was studied.The experimental results show that the roughness value of the cutting edge surface of the tool passivated by epoxy resin type magnetic elastic abrasives is about 4.2％,which is higher than that of the tool passivated by silica gel type magnetic elastic abrasives,and the cutting edge morphology of the tool is more regular.
magnetic elastic abrasivesroughnesspassivation valuetool passivation
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