MECHANICAL BEHAVIOR OF MAGNETIC ABRASIVE PARTICLES IN THE MAGNETIC INDUCTION CUTTING ZONE

The magnetic, induction–free abrasive wire sawing method enhances cutting quality by attracting abrasive particles into the cutting area. The mechanical behavior of magnetic abrasive particles (MAPs) within the cutting area is crucial for the performance of magnetic, induction-free abrasive wire saws, affecting factors such as the material removal mechanism, cutting accuracy, and surface quality. Within the magnetic induction cutting area, MAPs are in a "rolling" contact state with the workpiece. Based on the brittle material removal mechanism, a mechanical model of a single MAP is established, considering its stress behavior. Subsequently, the mechanical behaviors of MAPs in the magnetic induction cutting area are analyzed considering their distribution and motion state. A mathematical model is established to represent the average force of a single MAP and various process parameters in the magnetic induction cutting area. The influence of magnetic field strength on the average force of a single MAP is subsequently simulated using the numerical analysis software MATLAB. This study concludes that the primary mechanism for material removal in magnetic, induction-free abrasive cutting is Hertz fragmentation.