
| BNC2010: | 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: | 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 employing a highly adhesive layer for high chipping resistance. | |
| BN1000: | For high speed machining. BN1000 provides the highest wear resistance of all uncoated SUMIBORON grades. |
| Features improved fracture resistance while still placing a priority on wear resistance. | |
| BN2000: | General purpose grade suitable for typical hardened steel machining applications. |
Provides a high degree of fracture and wear resistance. Performance BNC2010 BNC2020 7
Conventional Coated CBN
| 6 | ■ | BNC2020 | |||
| 5 | |||||
| 4 | Conventional coated CBN | ||||
| ■ | ● | Flank wear occurs Conventional | 1,8 times | ||
| coated CBN | the | ||||
| 3 | ■ | conventional | |||
| ● | BNC2010 | tool life | |||
| 2 | ● | ||||
| ●■ | Competitor‘s | ||||
| 1 | coated CBN |
0 1,0 2,0 3,0 4,0 BNC2010 0 2,5 5,0
Cutting Distance (km) Reduced flank wear Cutting Distance (km)
| Work Material: | 15CrMo5, 58-62HRC, Continuous | Work Material: | SCM415-5V, 58-62HRC, Interrupted |
| Insert: | DNGA 150408 NC4 (BNC2010) | Insert: | CNGA 120412 NC4 (BNC2020) |
| Cutting Edge Treatment: S01225 | Cutting Edge Treatment: S01225 | ||
| Cutting Conditions: | vc=160m/min, f=0,08mm/rev, ap=0,1mm, Wet | Cutting Conditions: | vc=130m/min, f=0,1mm/rev, ap=0,6mm, Dry |
| BN1000 / BN2000 | |||
| l Wear Resistance (Continuous Cutting) | l | Chipping Resistance (Interrupted Cutting) |
Competitor 1 (Comparison based on conventional BN2000 as 100%.) Breakage BN2000 BN2000 Approx. 1,4x tool life! Conventional
Grade 1
Competitor 1 Cutting Distance (km) Work Material: 15CrMo5, Round Bar (58-62HRC) Cutting Conditions: v =100m/min, f=0,1mm/rev, a =0,2mm, Dry
c p BN1000 Approx. 1,4x tool life!
Competitor 2 Conventional BN1000 Grade 2 Competitor 2
Tool Life Ratio (%) Cutting Distance (km) Work Material: 15CrMo5, 8V Grooved Material (58-62HRC) Work Material: 100Cr6, Round Bar (58-62HRC) Insert: CNGA120408 NU-2 Cutting Conditions: v =150m/min, f=0,1mm/rev, a =0,2mm, Dry Cutting Conditions: v =150m/min, f=0,1mm/rev, a =0,2mm, Dry
c p c p