ROTATING TYPE BLADE MADE OF DIFFERENT MATERIALS AND MANUFACTURING PROCESS THEREOF

摘要

A rotary type blade made of different materials and a manufacturing method thereof are provided to prevent the damages due to the contact with the material to be cut and to the disk from being bent by making a first plate harder than a second plate. A rotary type blade made of different materials and a manufacturing method thereof comprise a disc combined with a first plate(110) and a second plate(120) having different hardness. The disc is alternatively placed with the first plate and the second plate according to the rotary direction. The first plate is harder than the second plate.