Permanent magnet motor rotors are widely used in new energy vehicles, electric tools, industrial automation equipment, and wind power generation equipment. Especially in electric vehicle drive systems, high-quality permanent magnet rotor designs can significantly enhance the vehicle's acceleration performance and endurance, while also reducing energy consumption. They are also integral to various precision machinery, such as robotics, where high torque and precise control are paramount. In the aerospace and defense industries, the reliability and efficiency of permanent magnet motors make them suitable for high-performance and durable systems. In the renewable energy sector, permanent magnet motor rotors are crucial components in wind turbines and other energy conversion devices, enabling efficient generation and utilization of clean energy.