Coated CBN - SUMIBORON for Hardened Steel Machining BNC2115 / BNC2125 / BNC2010 / BNC2020
Hardened Steel
BNC2010
Longer Tool Life and Cost Reduction
■ General Features Provides improved machining accuracy and longer tool life compared to conventional Coated CBN - SUMIBORON by combining newly developed CBN substrate and ceramic coating. Exhibits excellent performance in high-precision and general cutting of hardened steel and enables reductions in machining costs. Cutting Performance BNC2105 Continuous Cutting (Wear Resistance) Conventional Coated CBN Flank Wear Width: 152 μ m .0048 .0064 Conventional Coated CBN After Cutting 3.73 mi
BNC21
.0040
.0032
Com CBN
BNC2020
L
.0024
Lineup D BNC2115 · The ultimate in high-precision machining of hardened steel .0032
After Cutting 3.73 mi
.0016
BNC2105
.0016
Utilizing a thick coating with exceptional notch wear resistance and a tough CBN substrate to achieve stable and excellent surface nish.
.0008
Flank Wear Width: 103 μ m
D BNC2125 · First recommendation for hardened steel machining 0
BNC2105
0 0
0.62 1.25 1.86 2.50
Cutting Time (miles)
Combination of a tough CBN substrate and a thick coating that has a balance of wear resistance and toughness, to achieve stable machining in a wide range of applications. Work Material: 52100 (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = 0.0039 IPR, ap = .0039” Wet Excellent wear resistant CBN substrate and coating layer, for high-precision machining that requires surface roughness and surface nish accuracy.
Work Materi Tool Cat. No Cutting Con
D BNC2010 · High-precision grade for low- to medium-speed machining
D BNC2020 · General-purpose grade for low- to medium-speed machining
Cutting Performance
Utilizing an especially high wear resistant coating and a tough CBN substrate. Excellent machining stability in low-rigidity situations and high-load cutting Continuous Cutting (Wear Resistance) BNC2105 Continuous Cutting (Wear Resistance) BNC2115 Continuous Cutting (Wear Resistance)
BNC21
BNC2105
Application Range D Induction Hardened Steel (1045/1050, etc.), Carburised Steel After Cutting 3.73 mi
Di erentiation
.0028
After Cutting 3.73 mi
Uncoated SUMIBORON
Coated SUMIBORON
.0040 .0024
4.0
Chipping
1150 1000
.0064
Competitor's Coated CBN B
BNC2125 BNC2115 BNC2105 Competitor's Coated CBN A Competitor's Coated CBN B
BNC2105 BNC2115
Conventional Coated CBN
BNC2010 BNC2020 BNC2115 BNC2105
.0008 .0004 .0016 .0008 .0012 .0024 .0016 .0032 .0020
Competitor's Coated CBN A
BNC2125
.0048
Conventional Coated CBN Flank Wear Width: 152 μ m
3.0
660
After Cutting 3.73 mi After Cutting 3.73 mi
.0032
After Cutting 3.73 mi
Machine Rigidity
High
BNC2020 BNC2105
2.0
Induction Hardened/Carburized Steel
BNC2010
BNC300
330
.0016
Bearing steel
HSS/Die Steel
BNC2105 BNC2115 Flank Wear Suppressed
Recommended Cutting Conditions 0 0.62 1.25 1.86 2.50 3.10 3.73 4.35 0 1.25 2.50 3.75 5.00
Flank Wear Width: 103 μ m
1.0
BNC2105
0
0.62 1.25 1.86 2.50
Cutting Time (miles)
Cutting Speed (vc) (SFM) Min. - Optimum -Max. Cutting Time (miles)
Depth of Cut ap (Inch) Min. - Optimum -Max.
Feed Rate f (IPR) Min. - Optimum -Max.
Grade
Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 820 SFM, f = .0024 IPR, ap = .0039” Wet Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = .0039 IPR, ap = .0197” Wet
Work Materi Tool Cat. No Cutting Con
Small Impact Force on Cutting Edge Large Work Material: 52100 (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = 0.0039 IPR, ap = .0039” Wet Light Interrupted Heavy Interrupted Continuous
BNC2105 BNC2115 BNC2125 BNC2010 BNC2020 BNC300
.006 .008 .012 .008 .012 .008
660 600 530 450 400 330
.004 .004 .008 .004 .008 .004
.008 .014 .020 .014 .020 .014
- - - - - -
- - - - - -
.001 .001 .002 .001 .002 .001
1150 990 990 600 600 500
- - - - - -
- - - - - -
490 360 360
.006 .008 .016 .008 .016 .008
- - - - - -
- - - - - -
.001 .001 .002 .001 .001 .001
165 165 165
BNC2115 Continuous Cutting (Machined Surface Roughness) BNC2125 Continuous Cutting (Wear Resistance)
BNC21
BNC2115
Continuous Cutting (Wear Resistance)
.0028
.0080
After Cutting 3.73 mi
After Cutting 3.73 mi
.0024
4.0 Conventional Coated CBN
Competitor's Coated CBN B
.0064
Competitor's Coated CBN B
BNC2125
.0020
Conventional Coated CBN Flank Wear Progresses
Competitor's Coated CBN B
BNC2115
.0048
BNC2125
.0016
3.0
Excellent wear resistance
.0012
After Cutting 3.73 mi
After Cutting 3.73 mi
.0032
Convention Coated CBN
Good surface roughness maintained BNC2115
2.0
.0008
.0016
.0004
BNC2125 Flank Wear Suppressed
BNC2115 Flank Wear Suppressed
1.0
Cutting Time (miles) 1.25 2.50 3.75 5.00
1.25 2.50 3.75 5.00
Cutting Time (miles) 1.25 2.50 3.75 5.00
0
0
0
Cutting Time (miles)
Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = .0039 IPR, ap = .0059” Wet Work Material: 52100 (58-62HRC) Cutting Conditions: vc = 500 SFM, f = .0039 IPR, ap = .0079” Wet
Work Materi Tool Cat. No Cutting Con
Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = .0039 IPR, ap = .0197” Wet
L12
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