Brake discs are usually made of gray cast iron, and surface quality and dynamic balance are key requirements. It is recommended to use CBN or ceramic blades for high-speed double turret synchronous turning, which can complete the machining of the upper and lower brake surfaces with one tool, ensuring that the parallelism and smoothness meet the braking safety standards. The precision boring of the center hole of the brake disc also relies on the rigid CBN tool system.
The brake caliper body is mostly made of aluminum alloy die-casting or cast iron parts, and its piston hole needs to be precisely drilled. PCD precision boring tools are recommended for aluminum alloy pliers, while CBN tools are suitable for cast iron pliers, ensuring that the sealing meets the strict requirements of the brake hydraulic system.