Fu Nike CBN tool: an efficient tool for the manufacture of automotive brake discs

Abstract Brake disc performance is a powerful guarantee for safe driving of cars. As the core component of auto parts, brake discs (brake discs) are vital safety parts. With the demand for environmentally-friendly lightweight materials for automotive materials, the manufacturing process of automotive parts is constantly being updated, and the corresponding brakes...
Brake disc performance is a powerful guarantee for safe driving of cars. As the core component of auto parts, brake discs (brake discs) are vital safety parts. With the demand for environmentally-friendly lightweight materials for automobiles, the manufacturing process of automotive parts is constantly being updated, and the corresponding brake discs have placed higher demands on the accuracy, efficiency and life of CBN tools.

According to relevant experts, the processing quality of the brake discs on both ends of the surface is very strict: the surface roughness is Ra1.6, the thickness difference between the two brake surfaces is usually controlled within the range of 0.009 mm, and the parallelism is required to be within 0.04 mm. The beating requires an error range of 0.025 mm, and these geometric tolerances are guaranteed by finishing. The traditional grinding process has been difficult to meet the market demand for geometrical tolerance turning. In this case, the choice of Fu Nike CBN tool (used in automotive manufacturing, metallurgical rolls, air conditioning compressors, gears, etc.) is not only easy. It satisfies the processing requirements of the shape and tolerance of the brake disc during finishing and the surface roughness value reaches Ra=1.0~2.0μm, and can effectively improve the processing efficiency.

As a leader in the ultra-hard materials and super-hard tool industry, Fu Nike is committed to the exploration and research of cubic boron nitride materials and CBN tools. In recent years, relying on the advantages of its cubic boron nitride industrial chain, the company's innovative PCBN integrated polycrystalline inserts (FBN product series) are being widely used due to the internationally advanced grinding equipment. Among them, FBN7200 is a processing tool for professionally processing automobile brake discs, and has excellent processing performance.
The FBN7200 integral blade overcomes the limitation of the cutting depth due to the small size of the soldered PCBN blade, which can effectively avoid the risk of PCBN tool failure caused by solder joint failure. Compared with traditional tools, it has obvious advantages when processing difficult materials such as brake discs.

Taking the ash cast brake disc as an example, it can be seen from the following that under the same conditions, the Fenike FBN7200 integral polycrystalline insert is 10 times that of an imported CBN cutter in the industry.
Material: HT250, HB170-210. Blade: FBN7200CNMN120720ap=0.5mm, f=0.35mm/r, wet cut, Ra2.5um
The Finnish CBN tool FBN7200 is an integral polycrystalline insert with 8 cutting edges. The cutting edges on both sides of the tool can be used for cutting. It can be used for rough and integrated machining of heavy-duty cutting and has good impact resistance. The brake disc processed by the blade has high surface quality and exquisite appearance, which can greatly reduce the production cost of the customer.

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