As typical mass-produced parts, brake discs and brake drums are mainly made of gray cast iron. Moreover, large enterprises mostly use

 special machines or automatic production lines for brake discs and brake drums, which have high performance requirements for machine 

tools and cutting tools. While ensuring the quality of brake discs and brake drums, enterprises are increasingly focusing on improving 

efficiency. In this regard, Huamin has developed 3 CBN tool brands that can better meet the demands of high-speed processing of brake 

discs and brake drums. The same CBN material, Huamin's super-hard CBN tool life and stability are 50% or even several times higher than

 homogeneous products.

In particular, the new generation of CBN material we developed, CY3, uses nano-level binders and high-purity CBN particles in an optimal 

ratio, which can perform high-speed cutting of brake discs and brake drums at a cutting speed of 500-2000m/min, meeting the stable cutting 

of brake discs and brake drum parts, especially in the field of fine processing, the performance advantage is more obvious.

    （1）车削—粗加工工序：采用整体式立方氮化硼刀片BN-S300材质，其性能稳定，相较于硬质合金刀具寿命提升N倍。

    （2）车削—精加工工序：推荐BNK30 CNGA120404/08/12、WNGA080408，TNGA160408等型号，被称之为寿命王，实现高速切削，保证较高表面光洁度。

    （3）内孔加工工序：推荐焊接式立方氮化硼刀片（复合式和镶嵌式），优势在于实现高速切削，性能稳定。

    （1）车削—粗加工工序：推荐刀具型号BN-S300  CNMN120716，优势在于：切削性能稳定，相较于涂层硬质合金刀具寿命提升N倍。

    （2）车削—精加工工序：推荐刀具型号BNK30  WNGA080408/12，优势在于表面粗糙度达到Ra1.6以内，刀具单刃寿命相较于某品牌CBN刀具提高70%。

If you have any questions, please contact our Executive Manager and we will get back to you as soon as possible