BN7115, BN7125, & PMC7125
Features Improved wear resistance through high CBN content. Further, with improved CBN particle/binder boundary strength due to the special binder and improved binding strength between CBN particles thanks to our proprietary sintering process, excellent fracture resistance is achieved. Provides stable performance for high-speed machining of cast iron and sintered alloy.
Suppression of notch wear for excellent surface finish. Increased fracture resistance and improved dimensional accuracy General-purpose Coated Grade for Sintered Alloy Machining PMC7125
BN7125
BN7115
,
,
n Achieves high-efficiency machining of sintered alloy with a standard + 3 types of cutting edge variations Excellent thermal crack resistance in high-speed finishing of cast iron Also supports the machining of exotic alloys such as rolls, HSS, heat-resistant alloys, etc. General-purpose Grade for Cast Iron/Sintered Alloy Machining Application Range for PMC7125 / BN7125 / BN7115
n Exhibits both excellent cutting edge sharpness and fracture resistance Stable edge sharpness suppresses burrs and tearing Grade for Finishing of Sintered Alloy
D Powdered Metal / Sintered Alloy
D Cast Iron
Roughing region
K
Finishing region
Roughing region
1,000
Insert : 3NUTNGA331HS-BN7115 Cutting Conditions: v c = 600 SFM f = .004 IPR a p = .008” Wet Finishing region
Insert : 3NUTNGA331US-BN7115 Cutting Conditions: v c = 660 SFM f = .004 IPR a p = .004” Wet 6,600 8,250
660
BN7125
4,950
BN7115
BN7125 BN7000
PMC7125
BN7000
BNC8115 BNS8125
3,300
330
,
,
1,650
BN500
n
n
Depth of Cut ap (Inch) Feed Rate f (IPR)
0 .004 .008 .012 .016 .020
.040
0
.039
.118
.157
.079
.012 .010
.002 .004 .006 .008
Depth of Cut ap (Inch)
Recommended Cutting Edge Treatment
PMC71215
BN7125
BN7115
Type E W (mm) Honing
Type E W (mm) Honing
LF No R Honing LE
LE LS HS Yes Yes Yes Type E W (mm) Honing - 15° 25° - 0.07 0.05
LF No R Honing
Burr Control Emphasised
Burr Control Emphasised
15° -
0.12
15° - - 15° 25° 25°
0.12 - - 0.07 0.05 0.12
Standard LF LE LS
Standard LF LE HS
No No
No No
- -
LE R Honing
-
Yes Yes
Yes Yes Yes Yes
R Honing LS R Honing
25°
0.12
Negative Land Width W
Rake Face
Negative Land Width W
HS US
Standard No R Honing
Rake Face
Standard No R Honing
Surface Roughness Emphasised
Negative Land Angle
Surface Roughness Emphasised
R
HS R Honing
CBN
Negative Land Width W
Negative Land Angle
R
Rake Face
Honing
CBN
Insert : 2NUCNGA431US-BN7115 Cutting Conditions: v c = 560 SFM f = .003 IPR a p = .004” Wet Fracture Control Emphasised HS R Honing
Insert : 2NUCNGA432LF-BN7115 Cutting Conditions: v c = 660 SFM f = .004 IPR a p = .008” Wet Fracture Control Emphasised Flank Honing
Flank
US R Honing
Honing R
CBN
Flank
Frequency of Interruption
Heavy
Frequency of Interruption
Heavy
Cutting Edge Specification BN7115
Recommended Cutting Conditions
Work Material Sintered Alloy Material General Sintered Alloy High-density Sintered Alloy
Cast Iron Material
D Sintered Alloy
Grade Cutting Speed SFMFeed Rate IPR Depth of Cut (Inch)
Burr Control Emphasised Grade Cutting Speed SFMFeed Rate IPR Depth of Cut (Inch) Cast Iron BN7125 330 - 8,250 .0020 - .0236 .002 - .039 15° .12 Type E W (mm) Honing
Recommended Cutting Conditions Cutting Speed v c (SFM) Feed Rate f (IPR) 30 - 1000
LF No R Honing LE R Honing
Min. - Optimum - Max.
Standard LF LE LS
No No
Grade
BN7115 BN7125
Depth of Cut a p (Inch) .0004 - .006 .002 - .010 .0004 - .012 .002 - .020 .0004 - .012 .002 -.040 .0004 - .005 .002 - .008 - - - - .0059 .0118 .0047 .0118 .0031 .0059 .0024 .0059 .002 .002 .002 .002 - - - - - - - - .010 .020 .008 .020 .005 .010 .004 .010 .0004 - .008 .002 - .020 - - - -
General Sintered Alloy High Density Sintered Alloy
Sharp Edge Sharp Edge
30 - 1000
Yes Yes Yes Yes
BN7115 BN7000 BN7115 BN7000
500 500 330 330
- - - -
- - - -
LS R Honing
30 30 30 30
1,000 1,000
.0004 .0004 .0004 .0004
15° 25° 25°
.07 .05 .12
PMC7125 30 - 1500
HS US
Standard No R Honing
BN7115 BN7125
30 - 650 30 - 650 30 - 850
660 660
Good Surface Roughness
HS R Honing
Negative Land Width W
Rake Face
PMC7125
.0004 - .008
.002 - .020
US R Honing
Breakage Control Emphasised
R Negative Land Angle
CBN
2
Honing
Flank
Frequency of Interruption
Heavy
New US Chipbreaker emphasizes fracture resistance,
Made with FlippingBook flipbook maker