Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 14

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Coated SUMIBORON / SUMIBORON for Hardened Steel MachiningBNC300 / BN350

The Ultimate in Interrupted Machining of Hardened Steel!

  • General Features

BNC300

BNC300

CBN substrate that emphasizes on toughness coupled with a

highly wear resistant TiAIN based coating layer that has improved

adhesion strength. With a good balance of fracture and wear

resistance, stable and longer tool life can be achieve in interrupted

cut or in a mixture of continuous and interrupted cutting.

BN350

SUMIBORON series highest fracture resistance and

BN350

toughest CBN. Reliable grade for achieving stable tool life

in heavy interrupted cutting conditions.

  • Characteristics BNC300 Stable and long tool life in interrupted cutting

Achieving stable and long tool life in heavy interrupted cutting, with superior fracture resistance.

  • Superior dimensional precision Good adhesion strength, TiAIN based, high wear resistance coating. Achieving superior dimensional precision even in interrupted cutting.
  • Suitable for different types of workpieces Achieving significantly longer tool life even on workpieces that have a mixture of continuous and interrupted cutting.

BN350 Stable and long tool life in interrupted cutting

Stable and long tool life with superior fracture resistance, that prevents fractures which commonly occurs during interrupted cutting.

  • Cutting Performance Continuous Cutting + Mid Interrupted Cutting (Interruption Frequency 50%) Heavy Interrupted Cutting (Interruption Frequency 100%)

Comp. CBN: Breakage Comp Coated BN350

0.10CBN: BreakageD0.10BNC300
: Breakage
D
Coating
chip-off
DDD
D

0.05 FF D BNC300 0.05 D

D D BN350

DAble to continueD
DAble to continue
DD
012340123
Cutting Distance (km)Cutting Distance (km)
Work Material: SCr420 (58-62HRC) Insert: 4NC-CNGA120408Work Material: SCr420 (58-62HRC) Insert: 2NU-CNGA120408
Cutting Conditions: v =120m/min, f=0.1mm/rev, a =0.2mm, DryCutting Conditions: v =100m/min, f=0.1mm/rev, a =0.2mm, Dry
cpcp

L BN300 has superior balance of fracture and wear resistance. BN350 exhibits very good fracture resistance.

  • Application Range

Recommended Cutting Conditions

  • Coated SUMIBORON
  • SUMIBORON (For BNC300/BN350)
300BNC100BNC100300
Cutting Speed v (m/min)
BN1000BN1000c
BNC160BNC1605080 100 120150
BNC2010BNC2010

200 BNC200BNC200 200

BNC2020BNC2020BN2000BN2000BNX25BNX25
BNX20BNX20
120BN350BN350

100 100 f a

BNC300BNC300Feed RateD.O.C.
p
(mm/rev)(mm)
0.03 to 0.200.03 to 0.30
* Cutting Conditions: Dry
ContinuousLight InterruptedMedium Interrupted Heavy InterruptedContinuousLight InterruptedMedium Interrupted Heavy Interrupted
Smaller Impact Force on Cutting EdgeLargerSmaller Impact Force on Cutting EdgeLarger