Application of Halnn cbn inserts on hard turning gears
Category：News
PublishedDate：2017-11-24
The application case of Halnn CBN Insert on hard turning gears
Nowadays Problems: The materials of gears usually are 20CrMoTi, the hardness after heat treating will be about HRC58~62, and the surface have 8 holes which belong to heavy interrupt turning condition. The manufacturers usually use common cbn,they are not durable, the costs on each component always very high.
The solutions from Halnn: BN-H21 pcbn insert specific for heavy interrupt turning condition, cutting speeds and feeds as follows:Vc=60~250m/min, Fr=0.05~0.35mm/r,ap≤1
The details as follows:
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BN-H21 PCBN Insert for interrupt turning |
 |
Materials:20CrMoTi |
|
Machining Type: Heavy interrupt turning |
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Hardness: HRC58~62 |
|
Insert Model:BN-H21 WNGA080408-3S |
Cutting Speeds and Feeds:
Vc=300m/min, Fr=0.1mm/r,ap=0.3mm |
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Insert Materials |
Insert Model |
Cutting Speed (m/min) |
Failure Mode |
|
Halnn BN-H21 |
WNGA080408 |
300 |
Normal Wear |
|
Other CBN |
WNGA080408 |
300 |
Chipping |
Machining Effect:With BN-H21 pcbn insert heavy interrupt turning condition, the tool life is about 200 pieces/blade, it doesn’t chipping or wear seriously, and the production costs have been reduced, and improve the processing efficiency.