E-car Drilled Grooved Brake Discs

Functions of Drilling:

Rapid Ventilation: High-temperature gases generated during braking form an insulating layer (air cushion) between the brake pads and rotors. Drilled holes act like “chimneys” to quickly expel these gases and dust, ensuring the pads maintain close contact with the rotor surface. This delivers a more direct and responsive braking feel.

Weight Reduction & Heat Dissipation: Holes reduce weight (though minimal, it helps) and increase heat dissipation surface area.

Optimized Wet Performance: Rapidly breaks up water films in rainy conditions, improving braking response on slippery surfaces.

Scoring Function:

Cleaning Scrape: Continuously scrapes away oxidation layers and contaminants from the pad surface, maintaining optimal friction contact.

Directed Debris Flow: Facilitates debris expulsion.

Synergistic Effect: 1+1 > 2. The combined designs deliver ultimate heat fade resistance and brake stability during extreme driving (e.g., track days), resulting in exceptionally solid pedal feel.

• 100% critical dimensions, runout and DTV inspection 

• Material physical and chemical inspection

• Test shear strength, compressibility, density, flatness and parallelism 

• Test performance and noise/NVH