Общий каталог Sumitomo 2018 - 2019 - страница 483

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BNC2010/BNC2020 Hardened Steel

Characteristics

BNC2010 - High Precision

A grade for high-precision machining applicable for finishing

requiring good surface roughness and dimensional accuracy.

Provides further improved wear resistance thanks to a newly

developed CBN substrate coated with a TiCN layer.

Reduces flank wear and achieves excellent surface finish

thanks to newly developed special stable multi-layered

coating.

BNC2020 - General Purpose & High Efficiency

A general-purpose grade applicable to general hardened

steel machining.

A newly developed tough CBN-substrate coated with a

highly wear-resistant TiAlN layer.

Achieves more stable machining and longer tool life by em-

ploying a highly adhesive layer for high chipping resistance.

CBN-Substrate and Coating Structure of BNC2010 and BNC2020

BNC2010 BNC2020

TiN layer TiN layer Improved wear TiCN layer resistance Special multi-layered coating Improved wear

TiCN layerTiAlN layer resistance
SpecialImproved notch
multi-layered coatingwear resistance
TiCN layer
SpecialImproved bonding
High adhesive layer
multi-layered coatingstrength
Highly wearTough CBN
resistant CBN
substratesubstrate

Achieves excellent flank wear resistance thanks to a Achieves further stability thanks to TiAlN coating layers laminated structure of a TiCN-layer and special multi-layer with high bonding strength. coating. Application Range Recommended Cutting Conditions

BNC2010 BNC2020

300

BNC100 Cutting Speed (m/min) Cutting Speed (m/min)

BNC2010120 150200 250 30050150 100 200 220
BNC160
200BNC200
BNC2020
120Feed RateDepth of CutFeed RateDepth of Cut
100(mm/rev)(mm)(mm/rev)(mm)
BNC300
0,03 ~ 0,250,03 ~ 0,350,03 ~ 0,400,03 ~ 0,50

Continuous Light Interrupted Medium Interrupted Heavy Interrupted Interruption Frequency

Small Impact Force on Cutting Edge Large