Hard Turning air-conditioning compressor bearings with CBN I
Category：News
PublishedDate：2017-10-27
Air-conditioning compressor bearing, as one of the main component for adjusting temperature, required high on the product quality. With the increasing competition, if the manufacturers would like to get benefit, they must improve the production efficiency, reduce production costs and ensure the quality at the same time.
Nowadays, CNC Lathe have been widely used in air-conditioning compressor bearings industry, and propose higher requirements on the cutting tools precision, efficiency, and the tool life. Traditional cutting tools (carbide insert, ceramic cutters) are cheap, but the efficiency is low, and the cutting speed is low, the total production costs is high.
Halnn recommend BN-K20 PCBN Insert for machining compressor bearings which can realize high cutting speed, and the linear speed can arrive 1500m/min. And with high cutting speed, the tool life will be several times of traditional cutting tools. And the efficiency improved, other costs on each blade will be reduced, the total costs are reduced.
The following is one of the application case with cbn insert machining air-conditioning compressor bearings
Materials: FC250 (GG250)
Hardness: HB220~260
CBN Grade: BN-K20
Cutting Data: Vc=800m/min, Fr=0.25mm/r, ap=0.3mm, each tip can machining 500 pieces component, total 6 tips, can machining workpiece 3000 pieces.
Compared with coating carbide insert, the tool life is 6 times of coating carbide insert with the higher cutting speed.
|
Insert Materials |
Cutting Speed |
Tool Life |
|
Halnn BN-K20 |
800m/min |
500 pieces/tip |
|
Coating Carbide Insert |
330m/min |
80 pieces/tip |