Efficient cutting tools of machining brake discs-CBN Insert
The performance of brake disc is a guarantee for the safety driving, as the core component of the auto parts, the brake disc is one of the vital safety parts. With the demand of the environmental protection for the lightweight of automotive materials, the auto parts manufacturing process is constantly updated, the brake disc put forward higher requirements for the CBN tool accuracy, efficiency, life and so on.
Relevant experts said that the auto brake disc required strictly on the surface quality of the two end surfaces: the surface roughness is required Ra1.6, the two brake surfaces circumference thickness difference is usually required to control within 0.009mm, the parallelism is required within 0.04mm,the beating is required of 0.025mm error range, and these geometric tolerance is relying on finishing Guarantee. The traditional grinding process has been difficult to meet the market demand for geometric tolerance,
when finishing process the brake disc, Halnn CBN inserts(which is widely used in automobile manufacturing, metallurgical roll, gear and other industries) not only can easily meet the geometric tolerance and surface roughness value of Ra=1.0~2.0μm processing requirements, but also can effectively improve the processing efficiency.
As the leader in superhard material and superhard tools, Halnn is committed to the exploration and research of cubic boron nitride materials and CBN inserts. In recent years, Halnn researched new solid cbn inserts grades depending on its own cubic boron nitride industry chain advantage and the virtue of the international top grinding processing equipments, which is being widely used in many industries. BN-S30 is a cbn insert grade for processing autobrake disc with excellent processing performance.
Halnn BN-S30 solid cbn inserts overcomes the limitations of the cutting depth that brought from the small size of the welded pcbn inserts, which can effectively avoid the failure of the welding point caused by PCBN Insert failure risk. When process the auto brake discs and other difficult processing materials, Halnn BN-S30 has obvious advantages compared to traditional cutters.
In the case of processing gray cast iron brake discs, under the same conditions, Halnn BN-S30 solid cbn insert is 10 times of the industry's other CBN Insert.
|
Insert material |
Model |
Cutting depth（mm） |
Feed rate (mm/r) |
Dry cutting |
|
Halnn BN-S30 |
SCGN090412 |
2.5 |
0.45 |
Halnn CBN cutter BN-S30 is a solid cbn insert with 8 edges. Both sides of the cutting edges of the insert can be used for cutting and heavy-duty cutting of rough and fine machining, the impact resistance of BN-S30 is good. The brake disc processed with Halnn solid cbn inserts have good surface quality and beautiful appearance and it also will help the manufacturer reduce the production costs.