Coated CBN for Hardened Steel Machining BNC2105
Hardened Steel
The Definitive Grade in High-Speed, High-Accuracy Machining
■ General Features BNC2105 is the latest addition to the BNC lineup,
fulfilling even higher-speed machining with Coated CBN, our first recommendation for high-speed machining of hardened steel.
L
D BNC2105
· Fulfills outstanding wear resistance in high-speed machining of hardened steel Excellent wear resistant coating and CBN substrate, achieve stable and long tool life in high- speed machining.
Cutting Performance
BNC2105
BNC2105
Continuous Cutting (Wear Resistance)
Continuous Cutting (Wear Resistance)
After Cutting 3.73 mi
After Cutting 3.73 mi
.0040
Chipping
.0064
Conventional Coated CBN
.0032
Competitor's Coated CBN A
.0048
Conventional Coated CBN Flank Wear Width: 152 μ m
BNC2105
Competitor's Coated CBN A
.0024
.0032
After Cutting 3.73 mi
After Cutting 3.73 mi
.0016
BNC2105
.0016
.0008
Flank Wear Width: 103 μ m
BNC2105
BNC2105
0
0 0.62 1.25 1.86 2.50 3.10 3.73 4.35
0.62 1.25 1.86 2.50
Cutting Time (miles)
Cutting Time (miles)
Work Material: 52100 (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = 0.0039 IPR, ap = .0039” Wet
Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 820 SFM, f = .0024 IPR, ap = .0039” Wet
Application Examples of BNC2105 / BNC2115 / BNC2125
CBN Substrate and Coating Structure
BNC2115 BNC2105
52100 Bearing Steel Hub (60HRC)
5120 Harden
Continuous Cutting (Wear Resistance) High-precision Machining (High-speed) Coating Thickness: 3 μ m
BNC2115 Continuous Cutting (Machined Surface Roughness) BNC2105 suppresses fractures due to crater wear and realizes stable machining
BNC2105 m compared to
Colored Layer (Gold)
.0028
After Cutting 3.73 mi
.0024
4.0
Competitor's Coated CBN B
Tool Life Determinant: Dimensions Able to continue
Competitor's Coated CBN B
BNC2115 TiAlN Super Multi-layered Coating
Improved Wear Resistance
.0020
300
Competitor's Coated CBN B
.0016
3.0
.0012
After Cutting 3.73 mi
Good surface roughness maintained BNC2115 150
2.0
.0008
Improved Adhesion Strength
Highly Adhesive Layer
.0004
BNC2115 Flank Wear Suppressed High Wear Resistance CBN Substrate
1.0
BNC2105 Competitor's Product A 0
Cutting Time (miles) 1.25 2.50 3.75 5.00
1.25 2.50 3.75 5.00
0
0
Cutting Time (miles)
Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = .0039 IPR, ap = .0197” Wet Highly wear-resistant TiAlN super multi-layered coating is made thicker. Utilizes long tool life in high-speed cutting in combination with a substrate using a newly developed TiCN binder with excellent thermal resistance
BNC2125 High-load Cutting (Fracture Resistance) Colored Layer (Silver) Coating Thickness: 3 μ m Compared to competitors' coated CBN, BNC2115 reduces ank wear width by 30%, able to continue with good surface roughness General-purpose Machining (Medium- to High-speed) BNC2125 4130 Hardened Steel Gear (60HRC) Work Material: SCM415H (58-62HRC) Tool Cat. No.: 4NC-DNGA432 Cutting Conditions: vc = 660 SFM, f = .0039 IPR, ap = .0059” Wet Tool: 6NC-TNGA332 (BNC2105) Cutting Conditions: vc = 750 SFM, f = .0047 IPR, ap = .004”Wet
Tool: 4NC-CNGA Cutting Conditi
5140 Hardene
BNC2125 BNC2115
Continuous Cutting (Wear Resistance) High-precision Machining (Medium- to High-speed) Coating Thickness: 3 μ m
BNC2115 WH wip compared to com
L14
Colored Layer (Gold) TiAlSiN Super Multi-Layered Coating
.0080
After Cutting 3.73 mi
Stable Tool Life
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