Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 16

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BN1000 / BN2000Uncoated SUMIBORON for Hardened Steel Machining

  • General Features

BN2000

An uncoated type of SUMIBORON that has a newly

developed high-purity ceramic binder.

Both fracture and wear resistance are combined to achieve

a stable tool life in a wide variety of hardened steel

machining.

We offer a wide selection of tools starting with single-

cornered types.

BN1000

  • Characteristics
  • BN1000 Superior high-speed machining grade with the highest wear resistance of any uncoated SUMIBORON.

Sharpness Comparison

Delivers excellent tool life in continuous cutting to light-interrupted cutting.

  • Improved fracture resistance while also emphasizing wear resistance. Improved hardness and heat resistance from the high-purity TiCN ceramic binder.
  • BN2000 General purpose grade suitable for typical hardened steel machining applications.

Provides stable tool life in everything from continuous cutting to light-to-medium interrupted cutting.

  • Compared to conventional grades, small cutting edge roundness

High degrees of both fracture resistance and wear resistance.

Significant improvements in the performance of both by employing a high-purity ceramic binder. BN2000 Conventional Grade

  • Stable surface roughness by increasing sharpness (Figure on right).
  • Newly Developed High-Purity Ceramic Binder Conventional Grade BN1000/BN2000

High-Purity Ceramic Binder

Ceramic Binder Cracks

CBN

Impurities

CBN

The impurities contained in the ceramic binder for conventionalWith the newly developed high-purity
grades brings about a strengthening in the sintered body andceramic binder, the BN1000/BN2000 achieve
a decrease in heat resistance, which becomes the cause of crackstoughness and improved heat resistance
(chipping) and wear.by decreasing impurities to an extreme!
L■■

Application Range Recommended Cutting Conditions

  • BN1000
  • BN2000

300 Cutting Speed v (m/min) Cutting Speed v (m/min)

BN1000BN1000 c c

50100120 150 200300 250 5080 100 120150 200300 250
200
BNX25BNX25 BN2000BN2000
BNX20BNX20 Feed Rate fD.O.C.apFeed Rate fD.O.C. a
(mm/rev)(mm)(mm/rev)(mm)p
BN350BN350
1000.03 to 0.150.03 to 0.20.03 to 0.20.03 to 0.3

* Coolant: Continuous Cutting Dry, Wet Interrupted Cutting Dry

ContinuousLight InterruptedMedium Interrupted Heavy Interrupted
SmallerImpact Force on Cutting EdgeLarger