Product Details

why choose Halnn CBN inserts to process rolls?

Mill Rolls are important tools and key components for rolling ferrous metal materials. The cost of mill rolls is about 5%~15% of the rolling steel production, which is directly related to the production efficiency, product quality and production cost of the steel enterprises.

Advantage

Specific for the high hardness rolls, Halnn Superhard recommend Solid CBN inserts which can be used for large margin cutting. Compared with the traditional cutting tools, the performance will be more stable, the production efficiency will be improved, and the dry cutting applications significantly reduced the production costs.

Halnn CBN inserts have BN-K1that belongs to non-metallic binder solid CBN inserts aiming to above problems. BN-K1 solid CBN insert is suitable for high hardness cast iron industry. Solid CBN insert BN-K1 is used for roughing and finishing process. The cutting parameters were shown as below:

No.	Rolls Materials	Hardness	Select CBN Insert	Recommend Cutting Condition			Insert Image
No.	Rolls Materials	Hardness	Select CBN Insert	Vc(m/min)	ap(mm)	Fr(mm/r)	Insert Image
1	High Ni-Cr Cast Iron Rolls/Hi-Cr Cast Iron Rolls	HSD60~80	BN-K1	40~60	2~10	0.5~1.5
1	High Ni-Cr Cast Iron Rolls/Hi-Cr Cast Iron Rolls			60~90	1	0.5~1.0
2	Cast Semi-SteeRolls			30~60	1~10	0.5~1.5
2	Cast Semi-SteeRolls			50~80	1	0.5~1.0
3	High Carbon Semi-Steel Rolls			35~50	3	0.5~1.5
4	Chilled Cast Iron Rolls			25~50	1~10	0.5~1.5
3	High Speed Steel/HSS Rolls	HSD85~92	BN-S20	20~45	4	0.5~1.5
8	Tungsten Carbide Ring	HRA88	BN-S30	10~15	1	0.3~0.7
9	Forged Steel Cold Rolls	HRC65	BN-S20	10~25	0.2~7	/

Application

BN-K1 rough machining High Nickel Chromium Alloy Cast Iron Rolls
	Materials&Hardness	High Ni-Cr Cast Iron, HSD80
	Selected Insert	Halnn BN-K1
	Cutting Condition	Ap=9mm,Fr=0.5mm/r,Vc=25m/min
	Selected Insert	Efficiency	Failure Mode
	BN-K1	Improved 3 times
	Other CBN	/

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