Zhengzhou Halnn Superhard Materials Co., Ltd
Zhengzhou Halnn Superhard Materials Co., Ltd
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PCBN Inserts DNGA1504 Finish Machining GCr15 Powder Metallurgy Bearings
1. Brazed PCBN Inserts for finish machining hardened steel
| Insert Materials | Suited Materials | Machining Type | Typical Application | Insert Image |
| BN-H11 | Hardened Steel | Semi-Finishing, Finishing | Bearings, Gears, Gear Shaft, Hardened Mold |  |
| BN-H20 | Hardened steel, other materials of difficult to machine | Semi-Finishing, Finishing | Hardened Steel Gears, Mold,ect |
2. Brazed PCBN Inserts for machining hardened steel Cutting Condition
| Insert Materials | CBN Content | Binder | Granularity (μm) | Hardness (HV) | Machining Type |
| BN-H11 | 70 | TIN | 2~4 | 2800-3000 | Continuous |
| BN-H20 | 80 | TIC | 2~4 | 3100-3300 | Semi-Interrupt |
3.Common Models of PCBN Inserts DNGA/CNGA
This type brazed pcbn inserts are made with 4 cutting edges, wich can help the customers reduce the costs, the common models are as follow:
| 55°Rhombic DNGA PCBN Inserts
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| Type | Dimension | Standard Chamfer | Grades | |||||
| L(mm) | φI.C(mm) | S(mm) | φd(mm) | r(mm) | BN-H11 | BN-H20 | ||
| DNGA150404-4S | 15 | 12.7 | 4.76 | 5.16 | 0.4 | S01015 S01020 S01025 S02020 | ● | ● |
| DNGA150408-4S | 15 | 12.7 | 4.76 | 5.16 | 0.8 | ● | ● | |
| DNGA150412-4S | 15 | 12.7 | 4.76 | 5.16 | 1.2 | ● | ● | |
| DNGA150604-4S | 15 | 12.7 | 6.35 | 5.16 | 0.4 | ● | ● | |
| DNGA150608-4S | 15 | 12.7 | 6.35 | 5.16 | 0.8 | ● | ● | |
| DNGA150612-4S | 15 | 12.7 | 6.35 | 5.16 | 1.2 | ● | ● | |
4. Typical Application Case with BN-H11 PCBN Inserts
| BN-H11 PCBN Inserts finish machining GCr15 powder metallurgy bearings | |||
| Machining Condition: Cotinuous finish turning GCr15 Metallurgy Bearings,HRC62 Selected Insert: BN-H11 DNGA150404 | | ||
| Insert material | Cutting Speed | Lifetime | Roughness |
| Halnn BN-H11 PCBN Inserts | 140m/min | 12 pcs/blade | Ra0.8 |
| Other PCBN Inserts | 140m/min | 10 pcs/blade | Ra0.8 |
We can see that, with Halnn BN-H11 PCBN Inserts, the life time can improve about 20% than other pcbn inserts, and can confirm the surface roughness at the same time.