Coated CBN for Hardened Steel Machining BNC2115 / BNC2125 / BNC2010 / BNC2020 / BNC300 ■ Cutting Performance
BNC300
Interrupted Cutting (Fracture Resistance)
Competitor's Coated CBN D: Fracture
Conventional Uncoated CBN
■
.004
■
Coating chip-off
BNC300 Able to continue
.002
▲
D
0
8
Cutting Time (Minutes) 16 24
32
40
Part Material Tool Cat. No.
: Tempered Alloy Structural steelGrooved 5120 (58 to 62 HRC)
: 4NC-CNGA432 Cutting Conditions : v c = 400 SFM f = .004 IPR a p = .008” Dry
■ One-Use Insert with Chipbreaker BREAK MASTER
Application Range
SV Type For Carburized Layer Removal Ideal for carburized layer removal Eliminates short stoppages and dimensional defects .15 -35° 30° .84 (mm)
.028
SV Type
SV Type
.020
LV Type For Light Cutting Excellent chip evacuation under conditions with depth of cut at .012” or below .05 .60 -35°
(mm)
.012
LV Type
30°
LV Type
FV Type
.004
0
.008
.012
.004
FV Type For Finishing Excellent chip evacuation under nishing conditions with depth of cut at .008” or below
Feed Rate f (IPR)
(mm)
.40
45°
FV Type
■ One-Use Wiper Insert
Application Range
Finished Surface Roughness
2.0 4.0 6.0 8.0 10.0
Part Material : Chromoly Structural Steel 4130H (58 to 60HRC) Tool Cat. No.: 4NC-CNGA432 Cutting Conditions : v c = 450 SFM a p = .004 IPR Dry The wiper insert offers improved surface roughness and higher ef ciency
█
Corner Radius R0.16
WH Type
█
WG Type WH Type D
█
D D
█ D D
D
D
WG Type
0
.004 .006 .008 .012
Feed Rate f (IPR)
D Wiper Insert Operation Wiper Insert
.004 .002
.008
.012
.016
0
Standard Inserts
Feed Rate f (IPR)
f : Feed Rate
f : Feed Rate
Use WH Type for high-rigidity workpieces and equipment, and WG Type for issues of undulation or chatter.
Insert
Insert
Feed Direction
Feed Direction
Rz (Max. height)
Rz (Max. height)
Part Material
Wiper Edge
5
Made with FlippingBook flipbook maker