SCI 21-22 General Catalog

SUMIBORON / Coated SUMIBORON CBN Grade Guidance

Cast Iron

Recommended Cutting Conditions

● Turning

Part Material

Recommended Cutting Conditions

Recommended Grade

Cutting Speed v

c (SFM)

Feed Rate (IPR)

Depth of Cut a p (Inch)

f

Material

Standard (Hardness)

330

3,300

6,600

≤ .039

.0039 - .0197

BN7000

1,650

6,600

FC200 to FC300 (HB ≤ 230)

.0039 - .0157 ≤ .0197 .0039 - .0394 ≤ .157 .0039 - .0197 ≤ .039 .0039 - .0314≤ .0787 .0039 - .0157 .0039 - .0157 ≤ .0197 ≤ .0236

Gray Cast Iron

BNS800

650

6,600

BN500

650

2,310

BN7000

650

2,650

Alloy Cast Iron

(HB ≥ 200)

L

BNS800

650

3,300

BN7000

FCD450

260 650

Up to FCD550

BNC500

500

1,650

Ductile Cast Iron

FCD600

.0039 - .0157 ≤ .0197

BNC500

Up to FCD700

650 400

Vermicular Cast Iron FCV(CGI)

Q

.0039 - .0157≤ .0157

BNC500

650

1,650

Cutting Oil: Use wet. (BNS800 can also be used dry) ● Milling

Part Material

Recommended Cutting Conditions

Recommended Grade

Cutting Speed v

c (SFM)

Feed Rate (IPR)

Depth of Cut a p (inch)

f

Material

Standard (Hardness)

330

3,300

6,600

.0039 - .0197

≤ .0197

BN7000

2,650

6,600

FC200 to FC300 (HB ≤ 200)

Gray Cast Iron

.0039 - .0394≤ .1575

BNS800

2,650

6,600

Cutting Oil: Use dry.

Performance

BN7000 / BNS800 / BN500 Gray Cast Iron Cutting Recommended Grade

● High Speed Continuous Cutting

● Interrupted Cutting

● Continuous Cutting

Breakage

.0040

.0118

.0039

Conventional CBN

.0032

Ceramics

D

BN7000

Competitor's solid product CBN

.0079

D D

D

D

.0024

BN500

D

BNS800

D

.0019

.0016

D

Able to Continue

.0039

D

D

.0008

D

D

D

0

40 80 120 160 200 Time in Cut (minutes)

0

25

50

75 100

0

1.66 3.33 5 6.67 8.33 10

11.67

Time in Cut (minutes)

Time in Cut (minutes)

Part Material: Cast Iron (Pearlite) Tool Cat. No.: 2NU-CNGA432 Cutting Conditions: v c =2,650 SFM,

Part Material: Cast Iron (Pearlite) Tool Cat. No.: SNG322 Cutting Conditions: v c =2,000 SFM,

Part Material: FC300 (Pearlite) Tool Cat. No.: SNG433 Cutting Conditions: v

f = .0059 IPR

f = .0118 IPR

c =1,650 SFM, a p = .0059" Wet

f =.0117 IPR

a p = .0079" Wet

a p = .0197" Dry

Recommended Grade

Recommended Grade

BNC500

BNS800 / BN7000

Turning Ductile Cast Iron

Milling Gray Cast Iron

● Cast Iron Milling

● FCD450

● FCD700

.0040

3,300

3,300

BNC500

D

D

D

.0032

BN7000

BNC500

D

D BN7000 Conventional CBN

D

D

D

D

D

D

D

D

D

D

D

D

D

D

.0024

D

D

D

D

D

D

D

D

.0016

D

D

D

D

D

D

BN7000

BN500

.0008

BN500

D

330

330

0

132

264

396

526 658

0

33

66

100

.3

3

30

300

Tool Life (ft. x 1000) Life Criterion v B max. = .0079”

Time in Cut (minutes) Life Criterion v B max. = .0079”

Cutting Length (inches)

Part Material: FCD450 (Continuous Cutting) Cutting Conditions: f = .0079 IPR, a

Part Material: FCD700 (Continuous Cutting) Cutting Conditions: f = .0079 IPR, a

Part Material: FC250 (Pearlite) Tool Cat. No.: FMU4100R SNEW1203ADTR Cutting Conditions: v c = 5,000 SFM,

p = .0079 IPR" Wet

p = .0079 IPR" Wet

f = .0079 IPR, a

p = .0118" Dry

L8

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