Каталог Sumitomo сплавы и режимы - страница 19
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Каталог Sumitomo токарные резцы (державки) для наружного точения
Каталог Sumitomo сверла и развертки
Каталог Sumitomo запасные части
Каталог Sumitomo микроинструмент
Каталог Sumitomo фрезы со сменными пластинами
Representative Grades / H Hardened Steel
Hardened Steel
Grades BNC2010 / BNC2020 / BN1000 / BN2000 A
BNC2010：For high-precision finishing requiring good surface roughness and dimensional accuracy. Enables stable machining and provides excellent surface roughness thanks to coating and CBN substrate with excellent notch wear resistance. BNC2020：General purpose grade suitable for typical hardened steel machining applications. Achieves long tool life thanks to highly- wear-resistant and highly-adhesive coating and tough CBN substrate with excellent wear resistance and bonding strength.
： BNC2010 / BNC2020
BN1000 For high speed machining. 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.
BNC2010 Cutting Performance BNC2020 Cutting Performance
- Continuous Cutting of Hardened Steel
- Interrupted Cutting of Hardened Steel
7 After 8km After 5km
Previous Coated CBN ■ 6 BNC2020 5
After 3km
4 ■ Previous Coated CBN Previous
| ● | Notch wear | Coated |
| CBN |
3 ■ After 8km
- BNC2010
2 After 2.5km ●■ Comp. Coated 1 CBN 0 BNC2010
| 2 | 4 | 6 | 8 | 0 | 2.5 | 5.0 | |||||
| Reduced notch wear | |||||||||||
| Cutting Distance (km) | Tool Life (km) | ||||||||||
| Work Material：SCM415 58-62HRC (Continuous) | Work Material：SCM415-5V 58-62HRC (Interrupted Cutting) |
Insert：4NC-DNGA150408 Edge Treatment：S01225 Insert：4NC-CNGA120412 Edge Treatment：S01225
| Cutting Conditions：v =160m/min | f=0.08mm/rev | a =0.1mm | Wet | Cutting Conditions： v =130m/min | f=0.1mm/rev | a =0.6mm | Dry | ||
| c | p | c | p |
BN1000 / BN2000 Cutting Performance
- Wear Resistance (Continuous Cutting)
- Chipping Resistance (Interrupted Cutting) （Comparison based on conventional BN2000 as 100%.）
0.25 Able to Breakage
Competitor 1 Unable to Continue BN2000
0.20 continue BN2000 Approx. 1.4x tool life! 0.15 Breakage caused by crater wear
BN2000 0.10
Conventional
| 0.05 | Excellent wear | Grade 1 | ||
| resistance! | ||||
| 0 | Competitor 1 |
| 2 | 4 | 6 | 8 | 10 | ||
| Cutting Distance (km) | ||||||
| Work Material: SCM415H Round Bar (58-62HRC) |
Cutting Conditions: v =100m/min f=0.1mm/rev a =0.2mm Dry BN1000 2
c p Approx. x tool life!
0.16 Competitor 2 Competitor 2 Conventional 0.12 BN1000
Grade 2
High Wear 0.08 Competitor 2 BN1000
0.04
| Excellent wear | 0 | 50 | 100 | 150 | ||
| resistance! | ||||||
| 0 | Tool Life Ratio (%) |
| 1 | 2 | 3 | ||
| Cutting Distance (km) | ||||
| Work Material: SCM415H 8V Grooved Material (58-62HRC) | ||||
| Work Material: SUJ2 Round Bar (58-62HRC) | Insert: 2NU-CNGA120408 | |||
| 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