Ultra-thin hard-to-wear material characteristics Ultra-thin hard-wearing material features: (1) The surface of the workpiece is easily burned Such alloy steel has high hardness, large directionality, large chip deformation, large high quality cutting disc supplier and high output. Because of the poor thermal conductivity of the material, the grinding zone generates a large amount of heat and cannot be quickly transferred out, resulting in a particularly high temperature in the grinding zone. It is prone to surface burns. (2) Super thin slices are easy to block When the material is ground, the chips are easily adhered to the surface of the ultra-thin sheet, so that the ultra-thin sheet loses the cutting ability and is not easily removed from the abrasive grains. The ultra-thin sheet is clogged, the ultra-thin sheet is rubbed against the workpiece, and the grinding temperature rises sharply to cause the workpiece to burn. (3) The workpiece is easily deformed Grinding these hard-to-wear materials is easier to deform than other steels. Due to the strong work hardening tendency of alloy steel materials, residual stress is easily generated on the surface of the workpiece during processing. In During the post-processing, the workpiece is deformed due to changes in the stress state. For example, the stainless steel slender shaft is ground and turned into a waist drum shape and twisted; the sheet workpiece is warped; the diameter of the workpiece is worn, and an ellipse is easily generated. (4) The chill phenomenon is serious Due to the severe extrusion and friction phenomena in the grinding, the work hardening tendency of the alloy steel material is enhanced. Therefore, the chilling phenomenon of grinding the surface layer is more serious. It also causes annealing on the surface of the workpiece. Low surface roughness for grinding ultra-thin sheets: (1) Selection of abrasives Both corundum and cast iron parts are selected from corundum super thin sheets. Corundum abrasives have good toughness and can maintain contoured micro-blades. In corundum abrasives, white corundum and chrome corundum are more common; the use of single crystal corundum is better, which can improve the durability of ultra-thin sheets. (two) the choice of granularity In precision grinding and ultra-fine grinding, F60-F80 coarse-grained ultra-thin sheets are usually used, and after fine finishing, surface roughness of 0.08-0.025 can be obtained. The advantage is that the productivity of the ultra-thin particle size is high, the supply of the ultra-thin sheet is easy, and the disadvantage is that it is easy to cause defects such as pulling, and measures must be taken to overcome it. (3) Choice of hardness The low surface roughness grinding only removes a layer of micro-children's metal, the grinding load is concentrated on the micro-blade, so that the abrasive grains are not detached as a whole, so the hardness should be slightly softer than the hardness of the 14 inches cutting disc.