BNC8115 BNS8125 Brochure

CBN CAT.BNC8115BNS8125.4/22

Solid CBN

BNC8115 /

BNS8125

CBN - SUMIBORON

CBN - Coated SUMIBORON

For Applications Ranging From Roughing to Finishing of Cast Iron, Exotic Alloy Cast Iron, and Hardened Steel

Ready to Create New Standards

BNC8115

BNS8125

/ Coated CBN - Coated SUMIBORON CBN - SUMIBORON For Appl i cat ions Ranging f rom Roughing to Fini shing of Cast I ron, Exot i c Al loy Cast I ron, and Hardened Stee l (Hard- to-cut mater i a l )

█ Application Range

● Gray Cast Iron

Finishing region

Roughing region

6,600

4,950

BN7000

3,300

BNC8115 BNS8125

1,650

BN500

.16

.04 .12 Depth of Cut a p (Inch) .08

100% Solid CBN Structure

Wet machining is recommended for gray cast iron For dry machining, BNC8115/BNS8125 are recommended for both roughing and finishing

● Hardened Steel

● Ductile Cast Iron

990

1,650

0 165 330 495 660 825

1,320

BNC2010 BNC2020 BNC300

BNC500

990

BNC8115 BNS8125

BNC8115

660

BN7000

.02

.04 .06

.08

.10

.12

.02

.04 .06

.08

.10

.12

Depth of Cut a p (Inch)

█ Choosing Between BNC8115 and BNS8125 (Cast Iron/Hardened Steel)

BNC8115 BNS8125 Coated SUMIBORON SUMIBORON

SUMIBORON BN7000

BNC500 Coated SUMIBORON

Coated SUMIBORON BNC2020

Work Material

Turning

Milling

Turning

Milling

Turning

Milling

Turning

Depth of Cut .10” or less High-speed Finishing Depth of Cut .02” or less Low-speed machining

Most Economical

Grey Cast Iron

Best

Not applicable

Depth of Cut .02” or more Depth of Cut .02” or more

Depth of Cut .02” or less

Interrupted Machining

Ductile Cast Iron

Not applicable

Depth of Cut .02” or less High-speed Machining

Hardened Steel

Not applicable

: Not applicable

: Recommendation

CBN - Coated SUMIBORON BNC8115 Coated CBN - SUMIBORON/ CBN - SUMIBORON BNC8115/BNS8125

PVD coating with excellent wear resistance suppresses ank wear in machining of exotic alloy cast iron and hardened steel Ideal for roughing at depths of .02” to .10” inch, can also be used for roughing and nishing of gray cast iron Gold-colored coating for improved visibility of used corners

●

Adopts a PVD coating with excellent wear resistance in ductile cast iron machining Signicantly suppresses ank wear compared to conventional solid CBN █ Wear Resistance (Ductile Cast Iron Machining)

.0015 .0030 .0060 .0075 .0045

█

Conventional Tool

█

BNC8115 D D

█

D D

█ █ D D

BNC8115 (After Cutting 8:20 (min:sec))

Conventional Tool (Uncoated) (After Cutting 8:20 (min:sec))

1:40 3:20 5:00 6:40 8:20

Cutting Time (min:sec)

Part Material: Ductile Cast Iron - FCD450 (Round Bar) Tool Used: SNG322 Cutting Conditions: v c = 984 SFM, f = .008 IPR, a p = .008” Wet

█ Wear Resistance (Hardened Steel Machining) The use of PVD coating with excellent wear resistance on a high-strength solid CBN substrate realizes high fracture resistance and wear resistance even in hardened steel machining

.016

█

Conventional Tool

.012

█

●

.008

●

█

BNC8115

.004

●

● ●

●

1:40 3:20 5:00 6:40 8:20

BNC8115 (After Cutting 3:20 (min:sec))

Conventional Tool (Uncoated) (After Cutting 3:20 (min:sec) )

Cutting Time (min:sec)

Part Material: 52100 Bearing Steel 58-62 HRC (Round Bar) Tool Used: SNG322 Cutting Conditions: v c = 492 SFM, f = .008 IPR, a p = .12” Wet

Coated CBN - SUMIBORON/ CBN - SUMIBORON BNC8115/BNS8125

CBN - SUMIBORON BNS8125

Optimizing the grain size distribution of the CBN particles has resulted in improved chipping resistance and longer life while maintaining wear resistance during gray cast iron machining

█ Wear Resistance (Gray Cast Iron Machining) Optimized grain size distribution of CBN particles Realizes excellent wear resistance in high-efciency gray cast iron machining

.0060

█

Competitor's Product

█

.0045

●

█

● ●

█ █

● ●

.0030

█ ●

●

BNS8125

█ ●

.0015

●

BNS8125 (After Cutting 5:40 (min:sec))

Competitor's Product (Uncoated) (After Cutting 5:40 (min:sec))

1:15 2:30 3:45 5:00 6:15

Cutting Time (min:sec)

Part Material: Gray Cast Iron - FC300 (Round Bar) Tool Used: SNG322 Cutting Conditions: v c = 2,625 SFM, f = .003 IPR, a p = .008” Wet

█ Fracture Resistance (Ductile Cast Iron Machining) Use of high-strength solid CBN substrate improves fracture resistance Suppresses chipping to realize longer tool life

Improved chipping resistance

BNS8125 (After Cutting 45:00 (min:sec))

Conventional Tool (Uncoated) (After Cutting 45:00 (min:sec))

Part Material: Ductile Cast Iron - FCD450 (Round Bar with 2 V-grooves) Tool Used: SNG432 Cutting Conditions: v c = 656 SFM, f = .008 IPR, a p = .02” Wet

Coated CBN - SUMIBORON/ CBN - SUMIBORON BNC8115/BNS8125

■ Stock Availibilty

(

Coated CBN /

Uncoated CBN)

Negative Inserts

Solid Insert / Negative (With Hole)

Solid Insert/Negative (Without Hole)

Stock Dimensions (inch)

Sumitomo Catalog Number

Shape

ISO Cat. No.

Shape

ISO Cat. No.

Inscribed circle Thickness Hole Nose Radius

CNGA432 CNGA120408 l l CNGA433 CNGA120412 l l SNGA432 SNGA120408   SNGA433 SNGA120412   TNGA332 TNGA160408   TNGA333 TNGA160412  

CNG322 CNG323 CNG432 CNG433 CNG434 DNG322 DNG323 RNG32 RNG42 RNG43

CNGN090308 l l CNGN090312 l l CNGN120408 l l CNGN120412   CNGN120416   DNGN110308   DNGN110312  

.0313 .0469 .0313 .0469 .0313 .0469

.0313 .0469 .0313 .0469 .0625 .0313 .0469 .1875 .2500 .2500

.5000 .1875 .2031

.3750 .1250 —

.5000 .1875 .2031

.5000 .1875 —

.3750 .1875 .1500

.3750 .1250 —

Solid Insert/Negative (Dimple Lock)

RNGN090300 l l .3750

.1250

RNGN120300 l l RNGN120400 l l

—

Stock Dimensions (inch)

.5000

Sumitomo Catalog Number

.1875

Shape

ISO Cat. No.

SNEN090308W*

l l .3750 .1250 — .0313

Inscribed circle Thickness Hole Nose Radius

* for RM Milling Cutter

CNGX433 CNGX120412 l l CNGX434 CNGX120416 l l SNGX433 SNGX120412   SNGX434 SNGX120416  

.0469 .0625 .0469 .0625

Wiper Insert

.5000 .1875 —

SNG322 SNG323 SNG422 SNG423 SNG432 SNG433 SNG434 SNG435 TNG222 TNG223 TNG332 TNG333 TNG334 TNG335

SNGN090308 l l SNGN090312 l l SNGN120308   SNGN120312 l l SNGN120408 l l SNGN120412   SNGN120416   SNGN120420   TNGN110308 l l TNGN110312   TNGN160408   TNGN160412 l l TNGN160416   TNGN160420  

.0313 .0469 .0313 .0469 .0313 .0469 .0625 .0787 .0313 .0469 .0313 .0469 .0625 .0787

.3750 .1250 —

.5000 .1875 —

.5000 .1250 —

For applicable holders, please see Sumitomo General Catalog

l = USA Stocked item

 = World Wide Warehouse Item

█ Cutting Edge Specification ■ Cutting Edge Specification i i i

.5000 .1875 —

BNC8115

Standard/Wiper Insert W type ta ar / i er I sert ty e

mm)

)

.2500 .1250 —

e a.

Nose Radius Nose Radius

le a.

20˚

S02020

1.2 1.6 1.2 1.6 1.2 1.6 1.2 1.6

.3750 .1875 —

- -

.0079”

”

With Honing ith oning

- -

(Dimple Lock). (Dimple Lock).

BNS8125

Standard/Wiper Insert W type ta ar / i er Insert W type

mm)

)

20˚ 2 ˚

e a.

Nose Radius ose Radius

le a.

T02020

.0079”

No Honing ” No oning

0.8 1.2 0.8 1.2 1.6 0.8 1.2 0.8 1.2 0.8 1.2 1.6 0.8 1.2 - - - - - 0.8 - 0.8 0.8 1.2 0.8 1.2 0.8 1.2 1.6 2.0 0.8 1.2 0.8 1.2 1.6 2.0 0.8 1.2 0.8 1.2 0.8 1.2 1.6 2.0 0.8 1.2 0.8 1.2 1.6 2.0

- -

■ Recommended Cutting Conditions BNC8115 & BNS8125 (Turning) █ Recommen ed Cutting Conditions BNC8115 & BNS8125 (Tur ing) Cast Iron Part Material Cutting Conditions Feed Rate f (IPR) Feed ate f (IPR) Depth of Cut a p (inch) epth of ut a p (inch) Grade Grade ( r i ) Cast Iron Part aterial utting onditions █ Rec tti iti

- -

Min. - Optimum - Max. Min. - Optimum - Max.

- - - - - -

Cutting Speed v c (SFM) Cutting Speed v c (SFM)

Gray Cast Iron ray ast Iron

BNC8115 / BNS8125 BNC8115 BNS8125 8115 / 8125 8115 8125

.004 .004 .004 .004 .004 .004

- - - - - -

.020 .012 .012 .020 .012 .012

- - - - - -

.040 .020 .020 .040 .020 .020

- - - - - -

650 260 260 650 260 260

3,300 400 400 3,300 400 400

6,600 650 650 6,600 650 650

≤ .16 ≤ .12 ≤ .12 ≤ .16 ≤ .12 ≤ .12

- -

Ductile Cast Iron Ductile ast Iron

- -

Cutting Conditions Feed Rate f (IPR) Feed ate f (IPR) utting onditions

Hardened Steel Part Material t l art aterial r

- -

Min. - Optimum - Max. Min. - Optimum - Max.

Grade rade

Cutting Speed v c (SFM) Cutting Speed v c (SFM)

Depth of Cut a p (inch) epth of ut a p (inch)

- -

Hardened Steel ardened teel

BNC8115 8115

.004 - .004 -

.010 .010

- -

.016 .016

170 170

- -

330 330

- -

500 500

≤ .12 ≤ .12

Coolant: Dry/Wet Coolant: Dry/Wet

■ Recommended Cutting Conditions BNC8115 & BNS8125 (Milling) █ Recommended Cutting Conditions BNC8115 & BNS8125 (Milling) Cutting Conditions tti iti ( illi ) utting onditions

M type. type.

: Wiper Insert W: iper Insert

Cast Iron Part Material t Ir art aterial

Min. - Optimum - Max. Min. - Optimum - Max.

Grade Grade

Feed Rate f (IPR) Feed ate f (IPR)

Cutting Speed v c (SFM) Cutting Speed v c (SFM)

Depth of Cut a p (inch) epth of ut a p (inch)

Gray Cast Iron ray ast Iron

BNC8115 / BNS8125 8115 / 8125

.004 - .004 -

- .040 .020 .040 .020 -

2,600 2,600

- -

6,600 4,600 - 6,600 4,600 -

≤ .16 ≤ .16

Coolant: Dry Coolant: Dry

Coated CBN - SUMIBORON/ CBN - SUMIBORON BNC8115/BNS8125

█ Application Examples of BNC8115 Gray Cast Iron - FC250 Brake Disc High fracture resistance suppresses flaking, achieving 1.3x or longer tool life compared with competitor’s CBN Turning

Able to Continue

Flaking

800

Able to Continue

600

400

200

BNC8115 After machining 650 pcs

Competitor's CBN A After machining 500 pcs

BNC8115

Competitor's Product A

Tool Used: SNG434 (BNC8115) Cutting Conditions: v c = 755 SFM, f = .016 IPR, a p = .08 to .12” Wet

AISI 4340 (Heat-treated) Large Bearing High-wear resistance coating suppresses flank wear, achieving twice or longer tool life compared with competitor’s CBN Turning

BNC8115 After 2 passes

Competitor's CBN B After 1 pass

Tool Used: RNG43 (BNC8115) Cutting Conditions: v c = 492 SFM, f = .012 IPR, a p = .10” Wet

Coated CBN - SUMIBORON/ CBN - SUMIBORON BNC8115/BNS8125

█ Application Examples of BNS8125 Gray Cast Iron - FC250 Brake Disc 6x tool life with ceramic tools; good wear resistance

Turning

100

90 pcs

15 pcs

BNS8125 After machining 90 pcs

BNS8125

Competitors' Ceramics

Tool Used: TNG333 (BNS8125) Cutting Conditions: v c = 820 SFM, f = .016 IPM, a p = .04”, Wet

Centrifugal Cast Iron Cylinder Bore High fracture resistance suppresses flaking, achieving 1.2x or longer tool life compared with competitor’s CBN Milling

Flaking

BNS8125 After machining 100 pcs

Competitor's CBN After machining 80 pcs

Tool Used: SNG323 (BNS8125) Cutter: Special Boring Cutter Cutting Conditions: v c = 3,117 SFM, v f = 79 IPM, f z = .024 IPT, a p = .002”, Wet

Gray Cast Iron - FC250 Cylinder Block High fracture resistance suppresses flaking, achieving 1.5x or longer tool life compared with competitor’s CBN Milling

Able to Continue

Flaking

BNS8125 After 1.5 hours machining

Competitor's CBN After 1.0 hours machining

Tool Used: SNG433 (BNS8125) Cutter: Diameter ø125mm (10-flute) Cutting Conditions: v c = 3,281 SFM, v f = 100 IPM, f z = .004 IPT, a p = .04”, Wet

BNC8115 & BNS8125 P roduct P age

Sumitomo Electric Carbide, Inc. Headquarters 1001 Business Center Drive Mount Prospect, IL 60056-2181

Phone: (800) 950-5202 Phone: (847) 635-0044 Fax: (847) 635-7866

Sumitomo Electric Carbide, Inc. - Americas Tool EngineeringCenter

Sumitomo Carbide Canada, Inc. 150 Research Lane Unit #210 Guelph, Ontario N1G 4T2 Canada

5637 S. Westridge Drive New Berlin, WI 53151 (800) 950-5202 Phone:

Phone: (519) 265-6050 Phone: (844) 211-6050

Indiana Branch - Greenwood

Detroit Branch

14496 Sheldon Road #230 Plymouth, MI 48170 Phone: (800) 239-5177 Phone: (734) 451-0200 Fax: (734) 451-5338

595 S. Emerson Avenue Suite 100 Greenwood, IN 46143 Phone: (317) 859-1601

Huntsville Branch

West Coast Branch - Torrance

21241 South Western Avenue Suite 120 Torrance, CA 90501 Phone: (800) 950-5202 Fax: (310) 782-0211

6700 Odyssey Drive Suite 211 Huntsville, AL 35806 Phone: (256) 971-1203 Fax: (256) 971-1205

CAT.BNC8115BNS8125.1/21

www.sumicarbide.com

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