Heavy Interrupt PCBN Inserts BN-H21 CNGA120408/120412 Turning Gears End Surface

BN-H21 CNGA120408/120412 PCBN Inserts Heavy-Interrupt Turning Gears End Surface

1. About BN-H21 PCBN Inserts

Insert Materials	Coating	Suited Materials	Machining Type	Typical Application	Insert Image
BN-H21	Without Coating	Hardened Steel	Finishing	Bearings, Gears, Gear Shaft,Mold,ect.
BN-H21 C25	With Coating

2. BN-H21 PCBN Inserts Cutting Condition

3.Common Models of PCBN Inserts CNGA

Normally CNGA1204 PCBN Inserts are made with 2 cutting edges, and in order to help the customers reduce the costs, we also can offer 4 cutting edges pcbn inserts, the following is models:

4. Typical Application Case with BN-H21 PCBN Inserts

BN-H21 PCBN Inserts heavy turning Gears End Surface
Machining Condition: Heavy Interrupt Turning End Surface Material: 20CrMnTi Gears, HRC58-62 Selected Insert: BN-H21 WNGA080404 Cutting Condition: ap=0.15mm, Fr=0.1mm/r,Vc=117m/min
Insert material	Lifetime	Failure Mode
Halnn BN-H21 PCBN Inserts	600 pcs	Flank Wear
Other PCBN Inserts	100 pcs	Fracture

We can see that, with Halnn BN-H21 PCBN Inserts, the tool life improved about 6 times than other PCBN Inserts, and the failure Mode is flank wear, however other pcbn inserts are fracture.

5. Other Application of BN-H21 PCBN Inserts

BN-H21 PCBN Inserts are researched specific for heavy interrupt turning process, normally we used for machining hardened steel component, such as gears, bearing. When the component surface have many holes, it will appear interrupt turning condition, the insert will not easily chipping or fracture with BN-H21 PCBN Inserts. The following is some typical application which will use PCBN Inserts BN-H21 with heaby interrupt turning condition.

Zhengzhou Halnn Superhard Materials Co., Ltd is a high-tech enterprise specializing in the production of ultra-hardened tools, and the leader of professional hard material processing tools in China and the first to research new cutting tools specific for gray cast iron, kinds of wear-resistant steel/cast steel, hardened steel materials.

The predecessor of Halnn Superhard Material Co.,Ltd is Henan Superhard Material Institute which is the earliest to make research on processing the brittle and hard materials with cubic boron nitride tools and High-Grade Diamond Tools. As the pioneer of Industry tools in China, Halnn adhere to the initial business philosophy of "Not seeking large and complete, only insist high-precision and professional". With more than 10 years experience, Halnn has researched one by one new materials grade, new technology and become the most famous cutting tools brand in superhard cutting tools industry.