Halnn BNK30 cbn inserts for high speed machining brake disc
Category：News
PublishedDate：2018-01-10
Brake Disc, as one of the most important component for the automotive industry, usually use gray cast iron as the main material. With the raising price of the raw materials, the manufacturers didn’t have profit, and try to look for new methods to reduce the tool costs and improve the efficiency. Cbn inserts, as the superhard cutting tools, is the most suitable cutting tools for high speed machining brake disc with high efficiency.
In the past, the manufacturers use common lathe, the machining technology is roughing-semi-finishing-finishing. It required high on the Parallelism of the brake disc. With the bulk qty production of the brake disc, more and more CNC lathe replace the previous common lathe, which can improve the efficiency, it needs the cutting tools will have good performance. At first, they use carbide insert, however they found that is not wearable. And it needs change the insert frequently, which will affect the efficiency.
In current times, the manufacturers use cbn insert high speed machining brake disc with large production. Cbn insert is the best choice for machining brake dics. For example, Halnn researched one new cbn grade BNK30, which not only can be made with solid cbn type, but also can be made with pcbn type. It have been accepted by most of our customers.
Halnn is an enterprise that including design, produce, technology and service. Specific for machining gray cast iron, Halnn launched BN-S30,BN-S300, BN-K20 and BNK30,ect series. These cbn grades help the manufacturers improve their efficiency.
The difference between traditional cbn inserts and Halnn cbn inserts are as follows: Halnn use non-metal adhesive , which improve the impact resistance. Even though brake disc belong to precision castings, it also has some problems in the process, which will lead to the casting defects. Traditional cbn insert will be easily chipping, not wearable, Halnn cbn inserts BNK30 will not appear this similar problems.
The following is one application case that BNK30 high speed machining brake disc.
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BNK30 Solid CBN Insert rough machining Brake Disc |
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Machining Part：Brake Disc |
Machining Materials:FC250 |
|
Workpiece Hardness:HB180~240 |
Inserts Grade:BNK30 CNGN120416 |
|
Cutting Type:Dry Cutting |
Cutting Parameters:ap=2.5mm,Fr=0.3mm/r,Vc=697m/min |
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Testing Performance |
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Inserts Materials |
Linear Speed(m/min) |
Cutting Depth |
Tool Life/tip |
|
Halnn BNK30 |
697 |
2.5 |
260 |
|
Seco CBN300 |
697 |
2.5 |
200 |
From the above tablet, we can found that the performance of Halnn BNK30 solid cbn insert will improve 30% than Seco CBN. If you have any problems, please feel free to contact with us info@halnntools.com.