Tooling News No.548

Global Support, Global Solutions.

G-Class Positive
3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type Chipbreaker
Chipbreaker series that handles a wide
range of needs in small products machining

1st Recommendation for Small Product Machining

S I type Expanded
For Fine Finishing

New FF type
Sharper Cutting Edge

New SL typeG-Class Positive 3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type Chipbreaker Features
New expanded lineup of chipbreaker series forhigh-accuracy small product machining of steel,stainless steel, and exotic alloys, supporting various
turning needs• Expanded SI type items, well received for their stablehigh chip evacuation performance• FF type now available as a series, focusing on reliablechip control in ﬁne cutting• SL type now available as a series, with excellent
cutting edge sharpness in light to medium cutting

1st recommendation for small product machining. Excellent chip
evacuation performance over a wide range of cutting conditions

SI typeFF type Outstanding chip control in ﬁne ﬁnishing
Exhibits excellent cutting edge sharpness over a wide range ofcutting conditions. Emphasis on high machined surface quality

SL type Chipbreaker Application Range

Depth of Cut ap (mm)3.0

SL type

SI type

1st Recommendation

2.0

SC type
1.0

FF type
00.1

0.2

0.3

Feed Rate f(mm/rev)

 Selecting Chipbreakers

SI type

1st Recommendation

Main Chipbreaker

For long cutting chips
in ﬁne ﬁnishing conditions

For chatter/burrs/machined surface defects

For chipping in
high-feed conditions

FF type

SL typeSC type

Chip Control Emphasised

Sharper Cutting Edge

For High-feed Turning2G-Class Positive 3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type ChipbreakerGood Grade Application Range (Recommended Grades for Small Product Machining)

AC1030U

AC5015S

1st recommendation for small product machining
High-quality cutting edge realises excellent
machined surface quality
Supports various work materials such as steel,stainless steel, and exotic alloys

AC5025S

AC5015S
A grade with high wear resistance that canmaintain the dimensional accuracy of theworkpiece for a long period
Ideal for continuous turning of exotic alloys
or precipitation-hardened stainless steel

Wear Resistance

AC1030U

AC5025S
A grade with an excellent balance of wear
and fracture resistance
Ideal for machining of exotic alloys, includinginterrupted areas

Light Interruption

Continuous
High-precision Machining

FinishingAC1030U
Tooling News

AC5015S/AC5025S
Tooling News Grade Application Range (Small Product Machining)
High-precision

Finishing/Light Cutting Medium CuttingP

AC1030U

Work Material

AC5015S

P

AC5025SP

Exotic Alloy

T1000A

Steel

Finishing/Light Cutting Medium CuttingP

AC1030U

CermetT1500A

T2500Z

AC1030UP

AC5015S

P

AC5025S

P

AC530UP

Stainless Steel

AC630M

CCermetT1000A
T1500A
P: 1st Recommended Grade

AC5015S

P

AC5025S

PP

AC510U
PT1500Z

PP

Coated Carbide

High-precision

Coated Carbide

Coated Carbide

Work Material

T1500Z: 2nd Recommended Grade

C : CVD

3

P : PVD

Blank: UncoatedAC520UG-Class Positive 3D Chipbreaker Series for Swiss Lathe

VIDEO OFCUTTINGSI type/FF type/SL type Chipbreaker

SIThe SI type chipbreaker is the 1st recommendation for small
product machining
Realises excellent chip evacuation and wear resistance over awide range of cutting conditions for outstanding versatility

type

Dimpled shape suppresses
heat generation due tolarge depths of cut

Corner Part(mm)0.8Protrusion breaks chips
over a wide range ofdepths of cut

15°
Cutting Edge

Cutting edge shape aimed at
improving chip control performanceand reduce cutting force in proﬁling

14°

50mm

 SI type Chip Evacuation Performance(Titanium Alloy)
In titanium alloys as well, the range of chip control
is wide enough to enable stable turning
50mm

Depth of Cut ap (mm)Depth of Cut ap (mm)

 SI type Chip Evacuation Performance(Stainless Steel)
Excellent chip evacuation up todepth of cut ap = 3.0mm

3.01.0

0.5

0.1
0.10

0.15

0.200.30

Finishing

SI type
Stable curldiameter

0.1
0.10

0.20

0.30

Work Material: Ti-6Al-4V Insert: DCGT11T304MN-SI (AC520U)
Cutting Conditions: vc = 100m/min, f = 0.05 to 0.30mm/rev, ap = 0.1 to 3.0mm, Wet

 SI type Chip Evacuation Performance (Roughing, Finishing)
Chip curl diameter is stable in both roughing
and ﬁnishing; chip control is good,eliminating chip issues

SI type0.5

Feed Rate f(mm/rev)

Work Material: SUS316 Insert: DCGT11T304MN-SI (AC520U)
Cutting Conditions: vc = 100m/min, f = 0.1 to 0.3mm/rev, ap = 0.1 to 3.0mm, Wet

Good chipcontrol

1.00.05

Feed Rate f(mm/rev)

Roughing

3.0

Roughing

Competitor's
Product A
Holder entangled
FinishingCompetitor's
Product A
Unstable curl diameter

Work Material: S45C
Insert: [Roughing] DCGT11T304MN-SI / [Finishing] DCGT11T302MN-SI (AC520U)
Cutting Conditions: [Roughing] vc = 200m/min, f = 0.08 to 0.15mm/rev, ap = 0.80 to 1.50mm, Wet[Finishing] vc = 250m/min, f = 0.05 to 0.07mm/rev, ap = 0.05mm, Wet

4G-Class Positive 3D Chipbreaker Series for Swiss Lathe

VIDEO OFCUTTING

SI type/FF type/SL type Chipbreaker

FFThe FF type chipbreaker exhibits outstanding chip
control in ﬁne ﬁnishingStable chip control is possible even in turning withvariable depths of cut

type

Centre protrusion with excellent
chip control at depths of cut
ap = 0.1mm or below

Corner Part(mm)0.4515°

Wavy cutting edge and chippocket design prevent chips
from overﬂowing the breaker
wall, controlling chips during
variable turning

Cutting Edge

14° FF type Chip Evacuation Performance (Steel)
Excellent chip breaking performance at
depth of cut ap = 0.5mm and below

 FF type Chip Evacuation Performance (Stainless Steel)
Excellent chip control in ﬁne ﬁnishing ofstainless steel as well
50mm

Depth of Cut ap (mm)Depth of Cut ap (mm)

50mm

0.50

0.20

0.10

0.05
0.03

0.07

0.10

0.13

0.50

0.20

0.10

0.05
0.03

Feed Rate f(mm/rev)
Work Material: SCM415 ø30mm External Turning, Insert: DCGT11T302MN-FF (AC1030U)
Cutting Conditions: vc = 100m/min, f = 0.03 to 0.13mm/rev, ap = 0.05 to 0.50mm, Wet

ø30mm

Depth of Cut ap (mm)Controls chips even in turning with variable depths of cut

1.0mm

0.100.15

Work Material: SUS316 ø30mm External Turning, Insert: DCGT11T302MN-FF (AC1030U)
Cutting Conditions: vc = 100m/min, f = 0.03 to 0.15mm/rev, ap = 0.05 to 0.50mm, Wet

 FF type Chip Evacuation Performance (Variable Depths of Cut)

30°0.07

Feed Rate f(mm/rev)

0.05-1.00(variable)
0.05-0.50(variable)

FF type Competitor's
Product B

Work Material: SUS316 ø30mm Taper 30° Turning, Insert: DCGT11T302MN-FF (AC1030U)
Cutting Conditions: vc = 100m/min, f = 0.07mm/rev
ap = 0.05 to 1.00mm (variable), 0.05 to 0.50mm (variable), Wet

5

G-Class Positive 3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type Chipbreaker

SLWith excellent cutting edge sharpness, the SL typechipbreaker suppresses the burrs, chatter, and machined
surface defects to which small product machining is prone
ne
Ideal for higher-quality turning in a wide range of cutting
conditions

typeProtrusion suppresses cutting
force at large depths of cut
while controlling chips at
small depths of cut

Corner Part

0.515°

Sharp rake shape

Cutting Edge

Slanted cutting edge realises
smooth engagement andexhibits good cutting
performance even in vibratory
cutting20°

 SL type Chip Evacuation Performance
Good chip curls over a wide range ofcutting conditions
50mm

 SL type Cutting Force
Cutting force 30% reduced compared toconventional tools (general-purposechipbreakers)
600

3.0Cutting Force (N)Depth of Cut ap (mm)(mm)

1.00.54002000.10SL type0.030.07

Conventional Tool0.15

Feed Rate f(mm/rev)
Work Material: SCM415 ø22mm External Turning, Insert: DCGT11T302MN-SL (AC1030U)
Cutting Conditions: vc = 100m/min, f = 0.03 to 0.15mm/rev, ap = 0.1 to 3.0mm, Wet (Oil-based) SL type Chatter Resistance (External Turning)Work Material: SUS316 ø30mm Insert: DCGT11T302MN-SL (AC1030U)
Cutting Conditions:vc = 100m/min, f = 0.07mm/rev, ap = 2.0mm Wet (Oil-based) SL type Chatter Resistance (Internal Boring)Excellent cutting edge sharpness suppresses
chatter

Excellent chatter resistance even in internal boring,which is prone to chatter due to long overhang

SL typeNo chattering

SL typeNo chattering

Competitor's Product A
ChatterWork Material: SUS316 ø22mm External Turning, Insert: DCGT11T302MN-SL (AC1030U)
Tool Overhang: 30mm
Cutting Conditions:vc = 50m/min, f = 0.1mm/rev, ap = 1.5mm Wet (Oil-based)ø100mm

ø20mm

ø100mmCompetitor's Product B
ChatterWork Material: SCM415 ø20mm Internal Boring, Insert: DCGT070202MN-SL (AC1030U)
Holder: A16Q-SDQC R0702-20 Tool Overhang: 4.5D
Cutting Conditions:vc = 200m/min, f = 0.05mm/rev, ap = 0.5mm Wet

6

G-Class Positive 3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type Chipbreaker Application Examples

SUS304 Shaft Part

1.5 times the tool life, along withimproved chip control

Chip control improved and cutting edge
adhesion suppressed, eliminating sudden
fractures for a long and stable tool life

No. of Workpieces (pcs.)

Inconel 718 Machine Component External Turning SI type

150

External Facing

SI type100

SI type0SItype

Conventional Tool

Competitor's
Product CTool: DCGT11T302MN-SI(AC510U)
Cutting Conditions: vc=35m/min, f=0.08mm/rev,
ap=0.80mm Wet

Tool: DCGT11T304MN-SI(AC520U)
Cutting Conditions: vc=100m/min, f=0.08mm/rev,
ap=0.50mm Wet

Steel for Mechanical Structures Header Part External Turning FF type

SCM415 Valve Part

Increased productivity through improved
chip control
No. of Workpieces Produced

Drastically improved chip control, productivity 20% improved

No. of Workpieces (pcs.)

Without Chip Entanglement
Out of 100pcs

1005010mm50mm

0FF Competitor's
type Product D

FF type

Competitor's Product E

Power Consumption (kWh)External Turning FF type

After 200 Workpieces
6420Cutting
PowerStandby
PowerCutting
PowerStandby
PowerFF type Competitor's
Product E
Standby Power 15% reduced*Estimate based on electric power
measurement results during
production at Sumitomo facilities

Tool: VCGT110302MN-FF(AC1030U)
Cutting Conditions: vc=60m/min, f=0.03 to 0.05mm/rev,
ap=0.10mm Wet (Oil-based)

Tool: DCGT11T302MN-FF(AC1030U)
Cutting Conditions: vc=80m/min, f=0.050mm/rev,
ap=0.075mm Wet (Oil-based)

SUS431 Valve PartS45C Sleeve PartExternal Turning

SL typeNo. of Workpieces Surface Roughness Rz(pcs/C)( [ m)

Excellent cutting edge sharpness suppresses wear for 1.8 times longer tool life
Machined surface roughness was less than 50% of competitor's

Outward Facing

SL type

Excellent, stable machined surface quality

3210

SL type Competitor's
Product F
150100500

SL type Competitor's
Product F

Tool: DCGT070202MN-SL(AC5025S)
Cutting Conditions: vc=270m/min, f=0.04mm/rev,
ap=0.25mm Wet (Oil-based)

Tool: DCGT11T302MN-SL(AC5025S)
Cutting Conditions: vc=90m/min, f=0.05mm/rev,
ap=0.10mm Wet (Oil-based)

7G-Class Positive 3D Chipbreaker Series for Swiss Lathe

SI type/FF type/SL type Chipbreaker
SI type Chipbreaker Stock Table(Coated Carbide /5°

SI7°

SI
SI

11°

Q
Q
Q
Q
Q
Q
Q
Q
D
D
D
D
D
D
D

D

D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D

D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D

FF type Chipbreaker Stock Table

FF7°
FF
7°
FF7°
FF7°
FF11°
FF
7°
FF
FF

11°

CCGT 060201MN-FF
CCGT 060202MN-FF
CCGT 060204MN-FF
CCGT 09T301MN-FF
CCGT 09T302MN-FF
CCGT 09T304MN-FF
DCGT 070201MN-FF
DCGT 070202MN-FF
DCGT 070204MN-FF
DCGT 11T301MN-FF
DCGT 11T302MN-FF
DCGT 11T304MN-FF
TCGT 110201MN-FF
TCGT 110202MN-FF
TCGT 110204MN-FF
TPGT 080201MN-FF
TPGT 080202MN-FF
TPGT 080204MN-FF
VCGT 110301MN-FF
VCGT 110302MN-FF
VCGT 110304MN-FF
VPGT 110301MN-FF
VPGT 110302MN-FF

AC1030U

7°

Cat. No.

AC530UDDDDDDDDDDDDDDDDQQ
Q
DDDDDDDDDDQ
Q
DQ
Q
Q

Q
Q
Q
Q
DDDDDDDQQ
Q
Q
DDDDDDDQQ
Q
Q
DDDDDDDQQ
Q
Q
DDDDDDDQ
Q

Q
Q

Q
Q

Q
Q

6.35

2.38

2.8

9.525

3.97

4.4

6.35

2.38

2.8

9.525

3.97

4.4

6.35

2.38

2.8

4.76

2.38

2.4

6.35

3.18

2.8

9.525

4.76

4.4

6.35

3.18

2.8

9.525

4.76

4.4

6.35

3.18

2.8

CornerRadius<0.1<0.2<0.4
<0.1
<0.2
<0.4<0.1<0.2<0.4<0.1<0.2
<0.4
<0.8
<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2
<0.4
<0.8
<0.1
<0.2
<0.4
<0.8
<0.1
<0.2
<0.4
<0.8
<0.1
<0.2
<0.4
<0.8<0.1<0.2

SL type Chipbreaker Stock Table

AC5025S

Relief
Shape
Angle

D

Q
Q
Q
D
D
D
D
D
D
D
D
D
D
Q
Q
D
Q
Q
Q

Dimensions (mm)AC5015S

Stock

AC1030U

AC520U

AC510U
D

D
D
D
D
D
D
D
D
D
D
D
D
DDDD
D
D
D
D
D
D
D
DQ
Q
Q
D
D
D
D
D
D
D
D
DDQ
Q
DQ
Q
Q

D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D

D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D

D
D 6.35
DD
D 9.525
DD
D 6.35
DD
D 9.525
DD
D 6.35
DD
D 4.76
DD
D 6.35D
D 6.35D

Inscribed
Hole Corner
Thickness
CircleDia. Radius

2.38

2.8

3.97

4.4

2.38

2.8

3.97

4.4

2.38

2.8

2.38

2.4

3.18

2.8

3.18

2.8<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2<0.4<0.1<0.2

StockRelief
ShapeAngle

7°
SL

7°
SL
7°
SL

Cat. No.
CCGT 060201MN-SL
CCGT 060202MN-SL
CCGT 09T301MN-SL
CCGT 09T302MN-SL
CCGT 09T304MN-SL
DCGT 070201MN-SL
DCGT 070202MN-SL
DCGT 070204MN-SL
DCGT 11T301MN-SL
DCGT 11T302MN-SL
DCGT 11T304MN-SL
VCGT 110301MN-SL
VCGT 110302MN-SLVCGT 110304MN-SL

Dimensions (mm)AC1030U

11°
SI

DDD
D
D
DD
D
D
DDT1500A

SI

D
D
D
D
D
D
D
D
DDQ
Q
Q
D
D
D
D
D
D
D
D
DDQ
Q
DQ
Q
Q

AC5025S

7°

D
D
D
D
D
D
D
D
D
D

D
D
D
D
D
D
D
D
D
D
D
D

Inscribed
HoleThickness
CircleDia.

AC5015S

SI

D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
DT1000A

7°

DDD
D
D
DDD
D
DDD
D
DD
D
D
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDT2500Z

SI

CCGT 060201MN-SI
CCGT 060202MN-SI
CCGT 060204MN-SI
CCGT 09T301MN-SI
CCGT 09T302MN-SI
CCGT 09T304MN-SI
DCGT 070201MN-SI
DCGT 070202MN-SI
DCGT 070204MN-SI
DCGT 11T301MN-SI
DCGT 11T302MN-SI
DCGT 11T304MN-SI
DCGT 11T308MN-SI
TCGT 110201MN-SI
TCGT 110202MN-SI
TCGT 110204MN-SI
TPGT 080201MN-SI
TPGT 080202MN-SI
TPGT 080204MN-SI
VBGT 110301MN-SI
VBGT 110302MN-SI
VBGT 110304MN-SI
VBGT 110308MN-SI
VBGT 160401MN-SI
VBGT 160402MN-SI
VBGT 160404MN-SI
VBGT 160408MN-SI
VCGT 110301MN-SI
VCGT 110302MN-SI
VCGT 110304MN-SI
VCGT 110308MN-SI
VCGT 160401MN-SI
VCGT 160402MN-SI
VCGT 160404MN-SI
VCGT 160408MN-SI
VPGT 110301MN-SI
VPGT 110302MN-SI

Cermet)Dimensions (mm)T1500Z

7°

Cat. No.

AC5025S

ReliefAngle

AC5015S

Shape

AC630M

Stock

DDD
D
D
D
D
D
D
DDD
DDD
D
D
DD
D
DD
DDDD
D
D

D 6.35
DDD 9.525
DDD 6.35
DDD 9.525
DD
D 6.35D

Inscribed
Hole CornerThickness
CircleDia. Radius
2.38

2.8

3.97

4.4

2.38

2.8

3.97

4.4

3.18

2.8

<0.1
<0.2
<0.1
<0.2
<0.4
<0.1
<0.2
<0.4
<0.1
<0.2
<0.4
<0.1
<0.2
<0.4

All inserts with SI, FF, and SL type chipbreakers are produced withnegative corner radius tolerance, speciﬁed ﬁnished corner radius canalso be produced for various workpieces.
(conventional inserts have ± tolerance)
Note: Cat. Nos. for inserts with negative tolerance corner radius differ from those of normal inserts.
Example: DCGT 11T304 M N-SI
Negative tolerance symbol

A "<" next to the corner radius RE indicates a negative tolerance.
Dmark: Standard stocked item Blank: Made-to-order item Dmark: Standard stocked item (new product/expanded item)
Fmark: To be replaced by a new product, made to order, or discontinued (please conﬁrm stock availability) Blank: Made-to-order item

8

MEMO

9

MEMO10MEMO11< SAFETY NOTES >Very hot or lengthy chips may be discharged while themachine is in operation. Therefore, machine guards,
safety goggles or other protective covers must beused. Fire safety precautions must also be considered.

Please handle with care as this product has sharp edges.
Improper cutting conditions or mis-handling of the tool
may result in breakages or projectiles. Therefore, please
use the tool within its recommended conditions.

When using non-water soluble cutting oil,precautions against ﬁre must be taken andplease ensure that a ﬁre extinguisher isplaced near the machine.

Hardmetal Division
Global Marketing Department : 1-1-1, Koyakita, Itami, Hyogo 664-0016, Japan
https://www.sumitool.com/global(2023.6) I SN/AK