PCBN Inserts Continuous Finish Turning Powder Metallurgy HRC65 High Wear Resistant Steel
1. About Powder Metallurgy
Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs.
However Powder metallurgy products usually are difficult to machine. Many end users always try to find the cutting tools which have good performance on powder metallurgical products. Specific for this material, Halnn researched special grades.
2. PCBN Inserts for finish turning hardened steel
Insert Materials | Coating | Suited Materials | Machining Type | CBN Content | Granularity | Application |
BN-H05 BN-H05 C25 | With /Without Coating | Hardened Steel, High strength cast iron | Continuous | 45% | ≤1 | Gears,Gear Shaft, Bearings,wind power bearings |
BN-H10 BN-H10 C25 | Semi-Interrupt | 50% | ≤1 | |||
BN-H21 BN-H21 C25 | Heavy Interrupt | 60% | 1~2 |
3.Common models specification
CNGA1204 80° Rhombic PCBN Inserts with 2 cutting edges | ||||||||
Type | Dimension | Standard Chamfer | Grades | |||||
L(mm) | φI.C(mm) | S(mm) | φd(mm) | r(mm) | BN-H21 | BN-H21 C25 | ||
CNGA120404-2S | 12 | 12.7 | 4.76 | 5.16 | 0.4 | S01015 S01020 S01025 S02020 S02025 | ● | ◎ |
CNGA120408-2S | 12 | 12.7 | 4.76 | 5.16 | 0.8 | ● | ◎ | |
CNGA120412-2S | 12 | 12.7 | 4.76 | 5.16 | 1.2 | ● | ◎ | |
CNGA120416-2S | 12 | 12.7 | 4.76 | 5.16 | 1.6 | ● | ◎ |
CNGA1204 80° Rhombic PCBN Inserts with 4 cutting edges | ||||||||
Type | Dimension | Standard Chamfer | Grades | |||||
L(mm) | φI.C(mm) | S(mm) | φd(mm) | r(mm) | BN-H21 | BN-H21 C25 | ||
CNGA120404-4S | 12 | 12.7 | 4.76 | 5.16 | 0.4 | S01015 S01020 S01025 S02020 S02025 | ◎ | ● |
CNGA120408-4S | 12 | 12.7 | 4.76 | 5.16 | 0.8 | ◎ | ● | |
CNGA120412-4S | 12 | 12.7 | 4.76 | 5.16 | 1.2 | ◎ | ● | |
CNGA120416-4S | 12 | 12.7 | 4.76 | 5.16 | 1.6 | ◎ | ● |
4. Typical Application Case
BN-H21 CNGA120408 PCBN Inserts finish turning powder metallurgy | ||||
Component: Powder Metallurgy Gears,High Wear resistant powder high speed steel,HRC65 Machining Condition: Heavy Interrupt turning End Surface | ![]() | |||
Insert material | Cutting Speeds | Lifetime | Failure Mode | |
Halnn BN-H2 | 60 m/min | 5 pcs/blade | Flank Wear | |
Other Brand CBN | 60 m/min | 1 pcs/blade | Fracture |