Каталог Sumitomo пластины с кубическим нитридом бора Sumiboron - страница 4

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SUMIBORON/Coated SUMIBORONGuidance for SUMIBORON Grades

  • Advantages of Hardened Steel Cutting with SUMIBORON

HARDENED STEEL MACHINING Below is an analysis on the use of CBN as compared to grinding:

In terms of cost investments, it is much lower in machine cost and overhead cost due to the fact

(1)

that a CNC lathe is cheaper than a grinding machine. As for the quality of surface finish, inserts

can machine different profiles with excellent surface finish, in a single set-up. Environmentally,

sludge treatment for grinding is a hazard to the environment but the chips from the turning process

can be collected and recycled.

AdvantagesDetailsMachining Versatility In Using CBN
Facility Investment· Cheaper machines. · Streamlined processes.
is low· Improved efficiency with less machine required.
CostProfile finishing
in a single set-Taper turningInternal (Profile) BoringGrooving/Profiling
up
(A)
Improved(B)FF
(A)FF
QualityFF(B)
precision
(A)(B)(A)(B)

Environmentally Sludge management → Chips management Environment friendly (Recyclable)

  • Recommended Grade
GradeBinderCBN Content（%）Grain Size（μm）Hardness（GPa）TRS（GPa）CoatingThickness（μm） Characteristics
BNC2010TiCN50 to 55230 to 321.10 to 1.20TiCN multi-layered1.5Improved wear resistant coating and substrate achieve excellent and stable surface roughness.
BNC2020TiN70 to 75534 to 361.20 to 1.30TiAIN multi-layered1.5Provides long tool life in general and high-efficiency cutting thanks to tough substrate coated with a highly wear-resistant, highly adhesive layer.
ated BNC300TiN60 to 65133 to 351.15 to 1.25TiAIN1Suitable for finishing work materials with both continuous and interrupted cutting.
Co BNC100TiN40 to 45129 to 321.05 to 1.15TiAIN/TiCN2Suitable for high-speed finishing thanks to highly wear-resistant coating.
BNC160TiN60 to 65331 to 331.10 to 1.20TiAIN/TiCN2Achieves stable, high-precision finishing of hardened steel.
BNC200TiN65 to 70433 to 351.15 to 1.25TiAIN2Provides long tool life thanks to tough substrate and highly wear- resistant coating.
BN1000TiCN40 to 45127 to 310.90 to 1.00——Achieves ultimate wear and fracture resistance. Suitable for high- speed cutting.
BN2000TiN50 to 55231 to 341.05 to 1.15——General-purpose grade for hardened steel machining with high degree of fracture and wear resistance.
oated BNX20TiN55 to 60331 to 330.95 to 1.10——Achieves excellent crater wear resistance. Suitable for high- efficiency cutting under high temperature conditions.
Unc BN350TiN60 to 65133 to 351.20 to 1.30——Achieves ultimate cutting edge strength. Suitable for heavy interrupted cutting.
BNX10TiCN40 to 45327 to 310.80 to 0.90——Excellent wear resistance. Suitable for continuous high-speed cutting.
BNX25TiN65 to 70429 to 311.00 to 1.10——Exhibits superior fracture resistance in high speed cutting. Suitable for high-speed interrupted cutting of hardened steel.

L BNX25 TiN 65 to 70 4 29 to 31 1.00 to 1.10 — —

  • Application Range

Hardened Steel Machining Conditions Cutting Speed (m/min)

Application 100 200 300

Heavy GeneralBNC2020BNC2010
Coated
Purpose
SUMIBORONBNC200BNC100
(Continuous to
Coated Light Interrupted
CermetRz=Above 3.2)UncoatedBN2000BN1000 / BNX10 BNX20
SUMIBORONSUMIBORON
Medium toCoatedBNC300
Light
HeavySUMIBORON
CeramicUncoatedBN350BNX25
InterruptedSUMIBORON
BNC2010
HighCoated
40 4550 5565 60 Precision

SUMIBORON BNC160 Workpiece Hardness (HRC) (Rz=1.6 to 3.2) Uncoated BN2000

SUMIBORON

High Efficiency BNC2020

Coated (Caburized layer removal) SUMIBORON BNC200