Fine Face Milling Engine Block with BN-S300 SNEN CBN Insert

Fine Face Milling Engine Block with BN-S300 SNEN CBN Insert

Engine Block, as the base of the engine, it required high on the precision and

surface quality, for example, side Flatness need within0.03mm, Cylinder roundness will be within0.004mm, and the Verticality will be within0.03mm, Surface Roughness require Ra1.6. With the increasing competition on this industry, traditional cutting tools(carbide insert, ceramic cutters and coating carbide insert) can’t satisfy all the requirements . Many manufacturers can only use international brand (Seco, Sandvik, Sumitomo,ect) cbn insert, but it costs so high. So manufacturers are searching other cutting tools which can replace international cbn inserts, and reduce the tool costs.

Halnn Superhard, as the predecessor of the superhard cutting tools, with more than 10 years attention on superhard materials, has researched special cbn grade for milling engine block with gray cast iron materials, and also offer the recommend cutting data. And they can replace international cbn insert brand, such as Seco, Sumitomo, ect.

Specific for engine block, there are 3 materials, BN-S300, BN-K20 and BNK30 CBN Grade, BN-S300 belong to solid cbn insert, the cubic boron nitride content can reach 91%, the hardness can arrive HV3400-HV3600, and it can realize rough milling, fine milling engine block surface.

BN-K20 and BNK30 belong to brazing pcbn insert, it includes carbide body and cbn tips, usually used for fine boring engine to ensure the surface roughness and other requirements

When milling engine block end surface, if the margin is large and the cutting speed is high, the cutting tools will be easily chipping or wear rapidly. You can contact with us halnntools@gmail.com, We can offer you professional service. Online contact way as follows: skype:cbn_inserts_angels, Whatsapp:+8618695866134, Wechat:Halnntools