Coated CBN for Hardened Steel Machining BNC2115 / BNC2125 / BNC2010 / BNC2020 / BNC300 ■ Cutting Edge Treatment Specification Optimum cutting edge preparation applied to various grades and geometries, avoids cutting edge fracture caused by the heavy loads generated during the machining of hardened steel and other high-hardness materials. High-precision Type World's smallest class edge treatment of coated CBN for hardened steel machining. Minimizes cutting force Emphasis on Dimensional Tolerance and Surface Roughness LE Type R Honing LE LT LS
LT Type No R Honing
Suppressed Fracture at High Speeds/High Feeds
LS Type R Honing
ES High-efficiency Type Suppresses crater wear and its resultant edge chipping Stabilizes tool life in high-speed, high-feed machining
ES Type R Honing
Frequency of Interruption Suppressed Fracture with Interrupted Cutting Emphasis on Dimensional Tolerance and Burr Control Burr Control for Interrupted Cutting
Standard R Honing
HS Strong Edge Type Suppresses cutting edge chipping and fracture Stabilizes tool life in interrupted machining
HS Type R Honing
Heavy
Cutting Edge Specification List
L
E
H Strong Edge Type
Standard
Low Cutting Force
/ High-efficiency Type
Part Material
Grade Neg.-Pos.
Edge Specification Identification Code
Edge Specification Identification Code
W Honing Notation Edge Specification Identification Code
α
α
α
W Honing
Notation
W Honing
BNC2115 Neg./Pos. S01225 25° BNC2125 Neg./Pos. S01225 25° BNC2010 Neg./Pos. S01225 25°
LS LS LE LT ES LS
HS HS HS
Yes Yes Yes
S00515 15° S00515 15° Sharp Edge 0° T00515 15° S00535 35° S00515 15°
Yes Yes Yes
S01730 30° S02735 35° S01730 30°
Yes Yes Yes
0.12 0.12 0.12
0.05 0.05
0.17 0.27 0.17
0
Hardened Steel
No
0.05 0.05 0.05
BNC2020 Neg./Pos. S01225 25°
HS
Yes
S02735 35°
Yes
0.12
0.27
Yes Yes
BNC300
HS
Neg./Pos. S01225 25°
Yes
S01735 35°
Yes
0.12
0.17
Edge Specification of Wiper/Chipbreaker Inserts (Common)
Edge Specification Identification Code
Edge Specification Identification Code
S 0 1 2 2 5
α
Type
Notation
Neg.-Pos.
W Honing
Negative Land Width W
Rake Face
WG WH
Neg./Pos. Neg./Pos. Neg./Pos. Neg./Pos. Neg.
S01215 15° S01215 15°
Yes Yes
0.12 0.12
Wiper Insert
Negative Land Angle
Negative Land Width
Negative Land Angle α
CBN
Cutting Edge Shape
T : Negative Land S : Negative Land + Honing
N-FV N-LV N-SV
0 Yes
— 0°
Honing
Insert with Chipbreaker
Example: S01225 25°/ 0.12mm Negative Land with Honing
S00535 35°
Yes Yes
0.05 0.12
Flank
S01235
35°
■ Precautions when Using Wiper Inserts
When using CNGA Type / CCGW Type / WNGA Type Wiper Inserts
Use a holder with a cutting angle of 95°. Machining program modification is required. CNGA Type/CCGW Type/WNGA Type wiper inserts do not comply with the ISO standard. Correct the cutting edge position (tool offset) as explained on the right.
Cutting Edge Position Correction for CNGA Type / CCGW Type / WNGA Type (WG Type / WH Type) Corner Radius Type X-axis direction Z-axis direction External Turning
Cutting angle 95°
WG Type -0.02 -0.02 WH Type -0.06 -0.06 WG Type -0.01 -0.01 WH Type -0.06 -0.06
R0.4
R0.8/R1.2
Z-axis (+)
When using DNGA Type / DCGW Type Wiper Inserts
Use a holder with a cutting angle of 93°. Machining program modification is required. DNGA Type/DCGW Type wiper inserts do not comply with the ISO standard. Correct the cutting edge position (tool offset) as explained on the right.
Cutting Edge Position Correction for DNGA Type / DCGW Type (WG Type / WH Type)
External Turning
Corner Radius Type X-axis direction Z-axis direction
WG Type -0.17 -0.01 WH Type -0.70 -0.06 WG Type -0.05 0 WH Type -0.58 -0.05
Cutting angle 93°
R0.4
R0.8
Z-axis (+)
Note: Unlike other contour shapes, the DNGA/DCGW Type can only exhibit wiper effect for outer and inner diameter machining, and cannot be used for facing.
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