Coated CBN for Hardened Steel Machining BNC2115 / BNC2125 / BNC2010 / BNC2020 / BNC300 ■ Cutting Performance BNC2115
BNC2115 Continuous Cutting (Machined Surface Roughness)
Continuous Cutting (Wear Resistance)
5.0
.0028
After Cutting 30 minutes
.0024
Competitor's Coated CBN A
Competitor's Coated CBN A
4.0
After Cutting 30 minutes Competitor's Coated CBN A
.0020
3.0
BNC2115
.0016
Excellent wear resistance
BNC2115 Good surface roughness
.0012
2.0
After Cutting 30 minutes Conventional Coated CBN
Conventional Coated CBN
Conventional Coated CBN
.0008
1.0
.0004
BNC2115 Flank wear suppressed
0
10
20
30
40
0
10
20
30
40
50
Cutting Time (Minutes)
Cutting Time (Minutes)
Part Material
: Chromium Molybdenum Structural Steel 4130H (58 to 62HRC)
Part Material
: Chromium Molybdenum Structural Steel 4130H (58 to 62HRC)
Tool Cat. No. : 4NC-DNGA432 Cutting Conditions : v c = 660 SFM f = .0039 IPR a p = .0197” Wet
Tool Cat. No. : 4NC-DNGA432 Cutting Conditions : v c = 660 SFM f = .0039 IPR a p = .0059” Wet
BNC2125
BNC2125
Continuous Cutting (Wear Resistance)
High-load Cutting (Fracture Resistance)
0.20
After Cutting 39 minutes
Stable Tool Life
Conventional Coated CBN
0.16
BNC2125
After Cutting 39 minutes Conventional Coated CBN Flank Wear Progresses
0.12
BNC2125
Excellent wear resistance
0.08
Conventional Coated CBN
0.04
BNC2125 Flank Wear Suppressed
Passes until Tool Fracture 0 200 400 600 800 1,000 1,200 1,400
0
13
26
39
52
Cutting Time (Minutes)
Part Material Tool Cat. No.
: Alloy Bearing Steel 52100 (58 to 62HRC)
Part Material Tool Cat. No.
: Alloy Bearing Steel 52100 (58 to 62HRC)
: 4NC-DNGA432 Cutting Conditions : v c = 500 SFM f = .0039 IPR a p = .0079” Wet
: 4NC-DNGA432 Cutting Conditions : v c = 500 SFM f = .0059 IPR a p = .0197” 63m/times Wet
BNC2010
BNC2020
Continuous Cutting (Machined Surface Roughness)
Interrupted Cutting (Fracture Resistance)
Excellent Fracture Resistance
8.0
After Cutting 51 minutes
After Cutting 40 minutes
Competitor's Coated CBN B
BNC2020
Conventional Coated CBN
6.0
After Cutting 23 minutes
Competitor's Coated CBN B Notch wear occurs After Cutting 51 minutes
Conventional Coated CBN
BNC2010 Good Surface Roughness
4.0
After Cutting 19 minutes
2.0
Competitor's Coated CBN C
BNC2010 Notch wear suppressed
17
34
51
68
0
0
40
20
Cutting Time (Minutes)
Cutting Time (Minutes)
Part Material
: Chromium Molybdenum Structural Steel 4130H with 5 grooves (58 to 62HRC)
Part Material
: Chromium Molybdenum Structural Steel 4130H (58 to 62HRC)
Tool Cat. No. : 4NC-CNGA433 Cutting Conditions : v c = 425 SFM f = .0039 IPR a p = .0236” Dry
Tool Cat. No. : 4NC-DNGA432 Cutting Conditions : v c = 400 SFM f = .0055 IPR a p = .0059” Wet
4
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