Общий каталог Sumitomo 2018 - 2019 - страница 482

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Hardened Steel Characteristics

New-Generation Coated Sumiboron

Fracture Resistance Excellent

- Characteristics of Grades

BNC2010 Newly developed CBN substrate with high crater wear

CBN Content:50~55%resistance coated with special multi-layered TiCN, which
Grain Size:2µmexhibits excellent notch wear resistance.
Hardness HV:30~32GPa
TRS:1,10~1,20GPaIdeal for finishing of hardened steel requiring excellent
Main Coatingaccuracy or surface roughness.
Components:Multi-layered TiCN
Coating1,5µmAble to stably maintain 1,6R finishing.
z
Thickness:
High Precision Machining
BNC2020Newly developed tough CBN substrate with highly wear
CBN Content:70~75%resistant TiAlN coating. Provides improved stability by
Grain Size:5µm
Hardness HV:34~36GPainserting a highly adhesive layer between the substrate
TRS:1,20~1,30GPaand the TiAlN layer.
Main Coating
Components:Multi-layered TiAlNIdeal for general machining including finishing and interrupted
Coatingcutting as well as high-efficiency machining such as carburi-
Thickness:1,5µm
General and High Efficiency Cuttingsed layer removal.
BNC100BNC160BNC200BNC300
CBN Content:40~45%CBN Content:60~65%CBN Content:65~70%CBN Content:60~65%
Grain Size:1µmGrain Size:3µmGrain Size:4µmGrain Size:1µm
Hardness HV:29~32GPaHardness HV:31~33GPaHardness HV:33~35GPaHardness HV:33~35GPa
TRS:1,05~1,15GPaTRS:1,10~1,20GPaTRS:1,15~1,25GPaTRS:1,15~1,25GPa
Main CoatingMain CoatingMain CoatingMain Coating
Components:TiAlN/TiCNComponents:TiAlN/TiCNComponents:TiAlNComponents:TiAlN
CoatingCoatingCoatingCoating
Thickness:2,5µmThickness:2,0µmThickness:2,0µmThickness:1,0µm
High Speed CuttingHigh Precision MachiningGeneral and High Efficiency CuttingHeavy Interrupted Cutting

- Recommended Cutting Conditions

GradeCutting Speed vc(m/min)
BNC2010
BNC2020
BNC300
BNC100
BNC160
BNC200
GradeFeed Rate (mm/rev) Depthof Cut (mm)
BNC2010
BNC2020
BNC300
BNC100
BNC160
BNC200