PMC7125 & BN7000 Brochure 2024

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,

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