Общий каталог Sumitomo 2018 - 2019 - страница 483

Coated SUMIBORON H Hardened Steel BNC2010/BNC2020 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 TiCN layer Improved wear resistance Special multi-layered coating TiCN layer Improved wear TiAlN layer resistance Special Improved notch multi-layered coating wear resistance TiCN layer Special Improved bonding High adhesive layer multi-layered coating strength Highly wear Tough CBN resistant CBN substrate substrate 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 SUMI BORON 300 BNC100 Cutting Speed (m/min) Cutting Speed (m/min) Cutting Speed (m/min) BNC2010 120 150 200 250 300 50 100 150 200 220 BNC160 200 BNC200 BNC2020 120 Feed Rate Depth of Cut Feed Rate Depth of Cut 100 (mm/rev) (mm) (mm/rev) (mm) BNC300 0,03 ~ 0,25 0,03 ~ 0,35 0,03 ~ 0,40 0,03 ~ 0,50 Interruption Frequency Continuous Light Interrupted Medium Interrupted Heavy Interrupted Small Impact Force on Cutting Edge Large L12