Brazed PCBN Inserts BN-H10 Continuour Cutting Hard Part Turning Gear Hardend Steel Parts

1. Tool material selection for turning gears.

Hard turning gears have higher performance requirements for cutting tools, especially in the strict dimensional accuracy and surface finish of gears, and even under strong intermittent cutting conditions. At present, hard-turned gears are mostly processed with imported CBN tools. Halnn have developed CBN tools BN-H10 & BN-H21 for continuous cutting and interrupted cutting, respectively. Its excellent cutting performance has outstanding advantages in the field of hard turning gears, breaking the monopoly of foreign PCBN tool hard turning gears in China.

2.  Why is the gear after quenching difficult to machine?

(1) After hardening, the hardness of the gear is generally about HRC58-62. The traditional cutting tools can't be processed, or the wear is too fast.

(2) Some gears are intermittent, such as oil holes on the end face or grooves in the inner hole are all belong to interrupt cutting, the traditional tool is easy to collapse; 

(3) There are a small number of heavy interrupt gears, that is the machining of the gear tooth surface. Only CBN tools are suitable for machiningdes).

3. Halnn Recommended CBN Tool.

For high hardness hardened gears, Halnn recommends BN-H10, BN-H20, BN-S20 grade CBN tools. The BN-H10 grade CBN tools is selected for continuous cutting, the BN-H21 grade CBN tools is selected for semi-interrupted cutting, and the BN-S20 grade CBN tools is selected for heavy interrupted cutting or large allowance cutting.

4. Packing & Certificataion

5. Service.

6. Contact us.

Email: halnnemma@gmail.com

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Wechat:155 3719 5787