Name: BNK30 Cubic boron nitride CBN Turning Tool for efficient processing of Brake Rotor
Brand: Halnn Tools
Availability: InStock

Product Details

BNK30 Cubic boron nitride CBN Turning Tool for efficient processing of Brake Rotor

As the main component of the car, the brake disc is a powerful guarantee for safe driving. With the continuous updating of the automotive industry, higher requirements are placed on the tools for machining brake discs.Halnn Tools has successively launched the new material CBN inserts BN-S300/BN-K30/BN-K20/BN-K10,as the replacement tool materials.

Why Choose Halnn Tools CBN Insert ?

With the development of the cutting tools industry, the appearance of superhard cutting tools made it possible that dry cutting and high speed cutting brake disc. Especially Halnn BNK20 and BNK30 cbn inserts satisfy the customers. And now they are already used for machining brake disc in this industry.

Above 3 type cbn inserts(BNK30 and BN-K20) all can be normal used with high cutting temperature (about 1300℃), it has high red hardness and chemical stability. And the cutting speed can reach 1500m/min when finish turning brake disc. And the surface roughness can be ensure within Ra1.6.

Pictures of PCBN Inserts

CBN Cutting Parameters for Reference

Insert Grade	Suited Materials	Machining Type	Typical Application
BN-S300	Gray Cast Iron	Roughing, Finishing	Brake Disc, Gearbox, Cylinder Liner Brake Drum, Cast Iron Engine,
BN-K20	Gray Cast Iron	Roughing, Finishing	Brake Disc, Brake Drum, Cast Iron Engine,Gearbox
BNK30	Cast Gray Iron, Iron based alloy	Roughing, Finishing	Brake Disc, Brake Drum, Cast Iron Engine,Gearbox
BN-K10	Cast Gray Iron, Powder Metallurgy	Finishing	Brake Disc,Powder Metallurgy Parts, Valve seat ring, Engine Cylinder bore

Characteristics of CBN

Insert Grade	Binder	CBN Content(%)	Granularity	Hardness(HV)	Cutting Depth	Condition
BN-S300	AL,TIC	97	4—6	3400—3600	≤2mm	Continuous
BN-K10	Si,Co	95	≤ 2	3300—3500	≤1.5mm	Continuous
BN-K20	AL	95	2—4	3400—3600	≤0.5mm	Continuous
BNK30	Si,TIC	97	2—4	3400—3600	≤0.5mm	Continuous

Application Case

	Workpiece material:HT250（FC250）
	Workpiece hardness:HB 180-240
	Workpiece diameter：Φ434
	Surface finish：Ra1.6
Tool material	Cutting speed Vc（m/min）	Cutting depth ap(mm)	Feed rate Fr（mm/r）	Tool life (pcs)
A company CBN inserts	681	1	1	100
Halnn BNK30	681	1	1	145↑