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CNGA Tipped CBN turning inserts with high cost performance for hard turning the hardened steel.

The coated type life for the hardened steel machining improved at least 30%.

The super machining surface finish and longer tool life.


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Turntable Bearing Turning

Workpiece: Bearing                                 Material: GCr15

Hardness: HRC58-64                    Insert Grade:  BNT8 Coated Type

Machining Mode: Heavy Interrupted

Cutting parameter:微信图片_20190616200424.png

Vc = 170m/min   ap = 0.3mm   f = 0.08mm/r 

Compared with other Ceramic inserts:  


The tool life increase at least 12 times! 


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