BN-H10 PCBN Inserts CNGA1204/VNGA1604 Semi-Interrupt Turning Gears
Inner Bore
1. About BN-H10 PCBN Inserts
| Insert Materials | Coating | Suited Materials | Machining Type | Typical Application | Insert Image |
| BN-H10 | Without Coating | Hardened Steel, High strength cast iron | Finishing | Bearings, Gears, Gear Shaft, High hardness component |  |
BN-H10 C25 | With Coating |  |
2. BN-H10 PCBN Inserts Cutting Condition
| Insert Materials | Coating | CBN Content | Binder | Granularity (μm) | Hardness (HV) | Machining Type |
| BN-H10 | Without | 50% | Al,TiN | ≤1 | 2700~2800 | Continuous Turning~ Semi-Interrupt Turning |
BN-H10 C25 | With |
3.Common Models of PCBN Inserts CNGA
CNGA1204 80° Rhombic PCBN Inserts  
|
| Type | Dimension | Standard Chamfer | Grades |
| L(mm) | φI.C(mm) | S(mm) | φd(mm) | r(mm) | BN-H10 | BN-H10 C25 |
| CNGA120404-2S/4S | 12 | 12.7 | 4.76 | 5.16 | 0.4 | S01015 S01020 S01025 S02020 S02025 | ● | ◎ |
| CNGA120408-2S/4S | 12 | 12.7 | 4.76 | 5.16 | 0.8 | ● | ◎ |
| CNGA120412-2S/4S | 12 | 12.7 | 4.76 | 5.16 | 1.2 | ● | ◎ |
| CNGA120416-2S/4S | 12 | 12.7 | 4.76 | 5.16 | 1.6 | ● | ◎ |
VNGA1204 35° Rhombic PCBN Inserts  
|
| Type | Dimension | Standard Chamfer | Grades |
| L(mm) | φI.C(mm) | S(mm) | φd(mm) | r(mm) | BN-H10 | BN-H10 C25 |
| VNGA160402-2S/4S | 16 | 9.525 | 4.76 | 3.81 | 0.2 | S01015 S01020 S01025 S02020 S02025 | ● | ● |
| VNGA160404-2S/4S | 16 | 9.525 | 4.76 | 3.81 | 0.4 | ● | ● |
| VNGA160408-2S/4S | 16 | 9.525 | 4.76 | 3.81 | 0.8 | ● | ● |
| VNGA160412-2S/4S | 16 | 9.525 | 4.76 | 3.81 | 1.2 | ● | ● |
All above model CNGA and VNGA, both can offer 4 cutting edges, all
depends the customers' requirements.
4. Typical Application Case with BN-H21 PCBN Inserts
| BN-H21 PCBN Inserts heavy turning 20CrMnTi Gears End Surface |
Machining Condition: Semi-Interrupt turning inner bore Material: 20CrMnTi Gears, HRC58-62 Selected Insert: BN-H10 CCGW09T304 Cutting Condition: ap=0.25mm, Fr=0.08mm/r, Vc=135m/min, Dry Cutting |  |
Insert material | Cutting Speeds | Life Time | Efficiency |
| Halnn BN-H10 PCBN Inserts | 135 m/min | 1000 pcs | Improved 22% |
Some Europe PCBN Inserts | 110 m/min | 600 pcs | ....... |
From above application, we can see that, with Halnn BN-H10 PCBN
Inserts, the tool life improved 22%.
5. Other Application of BN-H10 PCBN Inserts
BN-H10 PCBN Inserts are researched specific for machining hardened
steel, it can be used continuous turning and semi-interrupt turning
process, normally we used for machining hardened steel component, such as
gears, bearing. When the inner bore has keyway, it will belong to
semi-interrupt turning condition. We can choose BN-H10 PCBN inserts
at that time. The following is some typical application for machining hardened
steel with PCBN Inserts:
