Name: Cubic boron nitride CBN Inserts for efficient Machining Brake drum
Brand: Halnn Tools
Availability: InStock

Product Details

Cubic boron nitride CBN Inserts for efficient Machining Brake drum

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 ?

Specific for brake disc, Halnn researched BN-S300,BN-K20 and BNK30 cbn inserts, and BN-S300 belong tosolid cbn insert, which can be used for both roughing and finishing, BN-K20 and BNK30 belong to brazing pcbn insert, which can be used for finishing process.

Specific for BN-K20 PCBN Insert for finish turning brake disc, it need to make sure the surface roughness in high cutting speed (Vc=1500m/min). Normally the cutting speed need to arrive 700~800 m/min. Compared with carbide insert, it not only can achieve high efficiency, and has good Durability and long tool life.

BNK30, is the new cbn insert materials grade which is researched by Halnn specific for machining gray cast iron parts. It adopt nano grade binder and high pure cbn particle, and can be used for high cutting speed machining brake disc (Vc=500~1000m/min), it can satisfy the requirements of the stable performance. Especially in the finishing process, its long tool life perform obviously.

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 180-24
	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↑