Milling Engine Block with FC250 materials use BN-S300 Solid CBN Insert from Halnn
Engine Block, usually is made of gray cast iron, which has good strength, Stiffness and wear resistance. And as the base of the engine, the engine block require high on the surface quality, for example, both side Flatness need within0.03mm, Cylinder roundness will be within0.004mm, and the Verticality will be within0.03mm, Surface Roughness require Ra1.6.
In order to satisfy all above requirements, the cutting tools need be used for high speed, and has high precision and high efficiency. It also can be used for milling engine block with large working allowance .
Specific for milling and boring engine block with cast iron materials, Halnn launched many cbn grades, not only can realize high speed milling process, but also can reduce the tool costs.
(1) Milling Process: Halnn recommend Solid CBN Insert BN-S300, obvious process efficiency, stable cutting performance, can replace Seco and other brand CBN.
(2) Boring Process: We recommend BN-S300,BNK30 and BN-K20 Brazed PCBN Insert, it has stable performance and has been widely used in Engine Industry.
(3) Chamfering process: It can be made depending on the customers' requirements, the cutting performance will be stable .
When milling engine block with high cutting speed, you can check our web halnncbn first, then contact with us , we will offer you the most widely cbn inserts grades and models. And offer customized service. Any problems, please leave message through my online contact way: skype:cbn_inserts_angels, Wechat:Halnntools
