SCI 21-22 General Catalog

SUMIBORON CBN Insert D

Indexable Insert

55° Diamond

: 1st Recommended : 2nd Recommended

: 1st Recommended : 2nd Recommended

: 1st Recommended : 2nd Recommended

(Legend) Continuous Cutting

General Cutting

Interrupted Cutting

K Cast Iron S Exotic Alloy H Hardened Steel Sintered Components

DCG ¢ 21.5 ˜ Uncoated

Recommended Application

Inscribed Circle .2500 Hole Dia.

.1102

Dimensions (inch)

Thickness

.0937

L

C35 , D14 , D18 , D19 , D24 , D25

E38 to E41

Applicable External Holders

Applicable Internal Holders

Uncoated CBN

Single-Use / 7° Positive (With Hole)

Effective Cutting Edge Length LE

Nose Radius RE

No. of Cutting Edges

Pcs/ Pack

Cutting Edge Specification

Shape

Sumitomo Cat. No.

ISO Cat. No.

NUDCGA21.50.5 NU-DCGW070202

Q

« D D « D D

.0078 .1063

NUDCGA21.51 NUDCGA21.52

NU-DCGW070204 NU-DCGW070208

Q «

««

.0156 .0984

1 1

Q Q Q

D

.0313 .0827

Standard

T-NUDCGA21.50.5 T-NU-DCGW070202 T-NUDCGA21.51 T-NU-DCGW070204

« «

.0078 .1063

10 1

.0156 .0984

NUDCGA21.50.5LT NU-DCGW070202LT NUDCGA21.51LT NU-DCGW070204LT NUDCGA21.52LT NU-DCGW070208LT NUDCGA21.50.5HS NU-DCGW070202HS NUDCGA21.51HS NU-DCGW070204HS

Q Q Q Q Q Q

D

.0078 .1063

C

D

T01215

1 1

.0156 .0984

D

.0313 .0827

Sharper Edge

Q Q

D

.0078 .1063

D

S01235

1 1

.0156 .0984

D

Strong Edge

*Use NS (NS-DCGW) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.

R

Multi-Cornered Single-Use / 7° Positive (With Hole)

Effective Cutting Edge Length LE

Nose Radius RE

No. of Cutting Edges

Pcs/ Pack

Cutting Edge Specification

Sumitomo Cat. No.

ISO Cat. No.

Shape

S

2NUDCGA21.50.5 2NUDCGA21.51 2NUDCGA21.52

2NU-DCGW070202 2NU-DCGW070204 2NU-DCGW070208

Q

D

.0078 .1063

D F D Q D D Q

D

Standard

1 2

.0156 .0984

D

.0313 .0827

T

2NUDCGA21.50.5WG 2NU-DCGW070202WG 2NUDCGA21.51WG 2NU-DCGW070204WG 2NUDCGA21.52WG 2NU-DCGW070208WG 2NUDCGT21.50.5FV 2NU-DCGT070202N-FV 2NUDCGT21.51FV 2NU-DCGT070204N-FV

D Q D Q D Q

D

.0078 .1024

D

S01215

1 2

.0156 .0984

D

Wiper Insert

.0313 .0787

Q Q

D

V

.0078 .1063

«

Honing

1 2

.0156 .0945

Break Master

*Use 2NS (2NS-DCGW) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.

W

CBN Application Range Map

(C) Gray Cast Iron

(D) Ductile Cast Iron

(E) General Powdered Metal

(F) High-density Powdered Metal

(G) Titanium Alloy

2,000

500

300

300

300

1,500

400

200

200

BNC500

200

BN7000

1,000

300

BN7500

( m/min ) v c

( m/min ) v c

( m/min ) v c

( m/min ) v c

BN7500

( m/min ) v c

BNS800

BN7000

NCB100

100

100

100

BN7000

200

500

BN500

BN7000

0

0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)

Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )

Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )

0 0.1 0.3 0.5

0 1.0 2.0 3.0 4.0

0 0.1

0.15 0.05 0.1 0.2 0.25 0.3 0.2 0.3 0.4 0.5

0 0.1

0.05 0.1 0.15 0.2 0.25 0.3 0.2 0.3 0.4 0.5

p (mm)

Depth of Cut a

Depth of Cut a

p (mm)

L55

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