Solid CBN inserts turning Brake Discs with high efficiency
Category：News
PublishedDate：2017-07-04
Brake Discs, as one of the main automotive parts, we usually use gray cast iron as the main processing materials. With the mass production of brake discs and the increasing costs on the raw materials, the manufacturers have much difficulty on the profits. In order to make sure the profit, they need to search the cutting tools which can be used for turning brake discs with high speed turning. CBN Inserts, as the cutting tools which can offer high efficiency, can improve the processing technology and the processing efficiency.
In the past times, the manufacturers use common lathe machine the brake discs. The turning technology is roughing---semi-interrupted turning-finishing. It required high on the precision and Parallelism of the brake disc. At beginning, the manufacturers use carbide insert turning brake discs .And it has good effect for common lathe and small production.
With the development of the modern society, CNC Lathe will replace the common lathe turning brake discs with high speed turning. When with high speed turning, the carbide cutting tools will be not easily wear. The cutting speed with carbide insert can arrive 350m/min, if the speed above it, the carbide insert will be wear, so it will change the insert frequently.
In current times, specific to brake discs manufacturers with mass production, they usually use cubic boron nitride cutting tools. Cubic Boron Nitride Cutting Tools are the best cutting tools on processing the brake discs with high efficiency. The main advantages are high efficiency, high quality and high precision .For example, Halnn BN-S30 and BN-K20 CBN insert, which is researched non-metal adhesive solid cbn cutting tools specific to brake discs
Halnn is a professional china cbn insert which include design, produce and service. In 2007, Halnn already launched BN-S30 solid cbn insert specific to high speed turning gray cast iron industry, which make cbn insert made in china seen by the world.
The big difference between non-metal adhesive cbn insert and traditional cbn insert is that improving the impact toughness with non-metal adhesive. Even though the brake discs belong to Precision casting, it also will have some problems in the casting process, such as sand, which will lead to collapse or not-wear. Halnn BN-S30 solid cbn insert don’t have these problems.
Application Case of Bn-S30 Solid CBN insert rough machining brake discs:
Machining Type: Roughing
Cutting Parameters: ap=2.5mm,Fr=0.45mm/r, Vc=350m/min
Processing Effect: Compared with coated insert, the productivity will be reduce half. But the lifetime will be few times than coated insert.
If the precision required high, Halnn will recommend you with BN-K20 welded pcbn insert.BN-K20 is researched for finishing process.
Cutting Parameters:ap=0.25mm,Fr=0.2mm/r,Vc=800m/min.
Processing Effect:Compared with coated insert, when the cutting speed is 2.5~3 times of coated insert ,the insert lifetime will be about 20 times of coated insert .
BN-S30 and BN-K20 advantages and application industry
|
Grade |
Suited for machining |
Advantage |
Applicable Industry |
|
BN-S30 |
Cast iron, hard-cutting material |
Has good impact resistance and wear resistance during processing the cast iron and alloy parts |
Brake disc, drum brake, belt wheel, parts of air condition compressor, Powder sintering metal retainer, etc |
|
BN-K20 |
Cast iron, Iron series sintered alloy |
More flexible with the insert clamping way, more than one edge, good wear resistance |
Brake disc, drum brake, belt wheel, parts of air condition compressor, Powder sintering metal retainer, etc |
Halnn will ofter the solutions which will help the manufacturers improve the processing efficiency. If you would like to know more details or have any needs ,please feel free to contact with me info@halnntools.com ,whatsapp:+8615617635382