What is the difference between punching and marking brake discs

       The punching and marking design of brake discs are two common surface treatment methods, each with different characteristics and applicable scenarios. The following is a detailed comparison of drilling and marking brake discs:
       1、 Technical principles and functions
       Perforated brake discs:
       Technical principle: Drill multiple small holes on the surface of the brake disc, usually with a diameter of 5-8 millimeters. These holes accelerate heat dissipation through air convection and reduce thermal attenuation.
       Function:
       Heat dissipation performance: The perforated design significantly improves the heat dissipation capacity, and the heat dissipation resistance is increased by more than 40%.
       Weight reduction: The drilling design reduces the weight of the brake disc and improves handling response.
       Dust removal: Holes can discharge the dust generated by brake pad friction, reducing dust accumulation.
       Appearance: Perforated brake discs have a unique appearance and a more sporty feel.
       Mark brake disc:
       Technical principle: Draw multiple radial or spiral grooves on the surface of the brake disc, with a depth of about 1-2 millimeters.
       These grooves help to remove dust generated by brake pad friction.
       Function:
       Heat dissipation performance: The underlined design improves the heat dissipation efficiency by about 15% -20% compared to ordinary brake discs.
       Dust removal: The groove can scrape off the dust generated by brake pad friction, reduce dust accumulation, and improve braking performance.
       Drainage performance: In rainy weather, the marking design can quickly break the water film, reduce the water film effect, and improve the braking effect.
       Appearance: The lined brake disc has a unique pattern and a stylish appearance.

       2、 Performance comparison
       Heat dissipation capability:
       Perforated brake discs: with stronger heat dissipation capabilities, suitable for high-performance and intense driving scenarios.
       Striped brake discs: Their heat dissipation ability is slightly inferior to perforated brake discs, but still better than ordinary brake discs.
       Crack resistance capability:
       Perforated brake discs: The edges of the holes are prone to cracking, resulting in slightly lower durability.
       Scratched brake discs: with higher mechanical strength and stronger crack resistance, suitable for extreme driving conditions.
       Wear condition:
       Perforated brake discs: The presence of holes may accelerate the wear rate of brake pads.
       Scribing brake discs: The wear on brake pads is relatively small, but scribing may shorten the lifespan of brake pads.
       Noise:
       Perforated brake discs: may produce slight wind noise.
       Scratched brake discs: may produce a slight "rustling" sound.
       3、 Applicable scenarios
       Perforated brake discs:
       Applicable scenarios: Suitable for high-performance vehicles, track driving, and intense driving scenarios.
       Advantages: Strong heat dissipation ability, light weight, and cool appearance.
       Disadvantage: The durability is slightly poor and requires regular cleaning of the gravel inside the hole.
       Mark brake disc:
       Applicable scenarios: Suitable for household users in rainy areas, who often walk on mountain roads and have requirements for brake pedal feel.
       Advantages: Good heat dissipation performance, excellent drainage performance, stylish appearance.
       Disadvantage: It may lead to a shortened lifespan of brake pads.
       4、 Choose Suggestions
       Daily commuting: If the main purpose is city commuting, it is recommended to choose a lined brake disc because it performs well in heat dissipation and drainage, and has relatively less wear on the brake pads.
       High performance requirements: If you frequently engage in intense driving or track day activities, perforated brake discs are a better choice as they provide stronger heat dissipation and resistance to thermal degradation.
       Budget considerations: The price of perforated brake discs is usually higher than that of lined brake discs. If the budget is limited, lined brake discs are a more cost-effective option.
       In short, when choosing brake discs, one should decide based on their driving habits, vehicle usage, and budget. Punching and marking brake discs each have their own advantages, suitable for different usage scenarios and needs.