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BN-K20 CNGA Brazed PCBN Insert Finishing Pulley
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Machining Part：Pulley
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Machining Materials:FC250
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Workpiece Hardness:HB220~260
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Inserts Grade:BN-K20 CNGA120408-4S
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Cutting Type:Dry Cutting
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Cutting Parameters:ap=0.3mm,Fr=0.25mm/r,Vc=550~700m/min
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Testing Performance
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Inserts Materials
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Surface Roughness
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Lifetime/edge
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Failure mode
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Halnn BN-K20
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Ra0.7~1.6
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200
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Normal wear
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Coating Inserts
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Ra1.6~3.2
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35
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Chipping
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From above chart, we can see that the tool life of Halnn BN-K20 is about 6 times more than coating carbide insert.
