Grinding characteristics of magnetic steel: It has a hard and brittle function, and it is easy for the magnetic steel to crack, burn and chip during the grinding process, especially when the grinding wheel travels out of the workpiece. The machinability of Category 5 magnets is slightly better than that of Category 8 magnets, while the grindability of Category 8 magnets is not easy. The crystal lattice of the eight types of magnetic steel has obvious directionality and magnetic directional thermal conductivity, and the defects generated in the grinding process are closely related to the crystallographic direction. When the grinding direction and the direction of the columnar crystal structure are the same, the sharp edge of the magnetic steel plane hardly has the phenomenon of edge chipping, and even if there is, it is quite small. When the grinding direction is straight with the direction of the columnar crystal structure, the edge will collapse at the exit of the grinding wheel, and in severe cases, it will form flakes.







Grinding characteristics of magnetic steel:
It has a hard and brittle function, and it is easy for the magnetic steel to crack, burn and chip during the grinding process, especially when the grinding wheel travels out of the workpiece. The machinability of Category 5 magnets is slightly better than that of Category 8 magnets, while the grindability of Category 8 magnets is not easy. The crystal lattice of the eight types of magnetic steel has obvious directionality and magnetic directional thermal conductivity, and the defects generated in the grinding process are closely related to the crystallographic direction. When the grinding direction and the direction of the columnar crystal structure are the same, the sharp edge of the magnetic steel plane hardly has the phenomenon of edge chipping, and even if there is, it is quite small. When the grinding direction is straight with the direction of the columnar crystal structure, the edge will collapse at the exit of the grinding wheel, and in severe cases, it will form flakes. Therefore, grinding magnetic steel is different from grinding other materials, and it is necessary to pay attention when grinding.




Grinding of magnets:
Green silicon carbide or alumina should be used as abrasives, with a particle size of 46 to 60, and a large-porosity grinding wheel with a hardness of soft 2 and medium soft 1. In addition, continuous grinding of grooves in silicon carbide grinding wheels can also be selected. When grinding, micro-feed should be used to increase the flushing of coolant. In order to prevent the workpiece from chipping when the grinding wheel travels, two general steel protective plates can be joined at both ends of the workpiece. In the grinding process, it is necessary to keep the grinding wheel sharp, and when the grinding wheel is in contact with the workpiece, it will make a "sand" movement. When the grinding wheel makes a "hum" sound when it is in contact with the workpiece, it is necessary to dress the grinding wheel, otherwise the grinding wheel will become dull, and defects such as burns will occur. When the grinding wheel is larger than the workpiece coverage, it is necessary to increase the scouring of the coolant, accelerate the heat dissipation, and reduce the feed of the workpiece to prevent the instantaneous impact of the grinding wheel on the workpiece to improve the surface quality of the workpiece.