In automotive braking systems, Noise, Vibration, and Harshness (NVH) is one of the most direct experiential metrics for consumers. Many people blame brake squeal on the friction material, but in reality, the manufacturing precision of the backing plate is equally a critical factor in determining braking quietness.
High-quality precision backing plates must possess exceptional flatness and parallelism. If the backing plate surface is uneven, it will lead to an uneven density distribution of the friction material during the hot pressing process. During braking, the brake pad and the brake rotor will not mate perfectly, resulting in high-frequency vibrations and sharp noises. Furthermore, the blanked edges of the backing plate must be smooth and burr-free to ensure the brake pad can slide smoothly within the caliper, avoiding uneven wear and noise caused by sticking.
To achieve OE (Original Equipment) quality standards, advanced backing plate manufacturers utilize the Fine Blanking process. This process can stamp out backing plates with precise dimensions and clean edges in a single stroke, eliminating the need for subsequent machining. Choosing precision backing plates not only enhances the overall visual appeal of the brake pad but also addresses NVH issues at the source, providing drivers with a quiet and comfortable braking experience.