Turning Grades
▶ Excellent surface roughness (2 times higher) at normal feed▶ Shallow depth of cut, excellent surface roughness and high
productivity at high feed (2 times higher than general) and finishing▶ Wiper cutting edge and suitable for high feed design reduce cutting
force at high feed machining
2step finishing surface roughness 1step finishing surface roughnessGeneral Insert
Roughness
Wiper Insert
General insert
Wiper insert
KORLOY Wiper inserts■ Korloy’s New Wiper System
Cutting performance
Improving productivity
1Step 2Step
Conventional Insert
Wiper Insert
1Step
10B
●LW breaker (Negative)
·Curvilinear cutting edge : reducing cutting force·Cutting edge for deep depth of cut :
Good chip control & lower cutting load·For shallow depth of cut C/B design :
Enough chip-pocket for good chip flow·For medium and roughing :
During machining heat and frictional area reduce.
<Chip Control Range>: Cutting condition- Insert : CNMG120408-LW- Workpiece : S45C- Cutting speed : 200 m/min
Feed(mm/rev)
Dep
th o
f cut
(mm
)
Feed(mm/rev)
Dep
th o
f cut
(mm
)
●VW breaker (Negative)
·For finishing : Excellent chip control·Stable clamping : Close to cutting edge design·Similar cutting edge to C/B for medium :
strong cutting edge·3-dimensional dot design at cutting corner :
Reducing cutting force and good chip control at shallow depth of cut
<Chip Control Range>: Cutting condition- Insert : CNMG120408-VW- Workpiece : S45C- Cutting speed : 200 m/min
Cutting conditionInsert : CNMG120408-LW, VWCutting speed : 200m/min Depth of cut : 1.5mmWorkpiece : SCM440
▶ When you exchange general inserts for wiper insert, please confirm the cutting edge position because wiper insert has different cutting edge position from general insert.
▶ For better surface roughness at high feed machining, please notice that the wiper insert shows better performance at straight machining than at round and taper machining
■ The Features of Korloy’s Wiper Inserts
■ Notice
●The comparison of surface roughness
General Insert
Wiper Insert
Chips from general feedmachining
Chips from high feedmachining
Turn
ing G
rade
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tern
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Borin
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to T
ools
Turn
ing
>>
>
Car
bide
Sha
nkBo
ring
Bar
down up
Wiper insert (5.5 Rmax) General insert (19.6 Rmax)
- Wiper inserts Rmax surface roughness is 4 times better than general inserts.- 1step finishing surface roughness can be obtained to provide higher productivity.
(M/T: SCM440, vc=200m/min , ap=1.0mm, fn=0.5mm/rev)
Ra(compared togeneral chip
breaker)
Cutting force-Back force-
(compared togeneral insert)
Application range Cutting condition Workpiece shape Workpiece- Free
For mediumand finishing
Shallow depthof cut andhigh feed
Short andthick shapecutting force
Cutting steelcast iron
Around 0.05
Around 0.05R max=fz2
×10008r
- Theoretical surface roughness :
Turning Chip Breakers
11B
Applications range of chip breakers
■ Negative inserts
■ Positive inserts
Roughing Roughing
Roughing Roughing
Finishing Finishing
Finishing Finishing
Continuous
Continuous Continuous
Continuous
Interrupted
Interrupted
Interrupted
Interrupted
Mediummachining
Mediummachining
Mediummachining
Mediummachining
P M
K P
Turning GradesTurning C/B
Turning InsertsExternal Holder
Boring BarCartridge
Auto ToolsTurning
>>
>C
arbide ShankBoring Bar
Machining typesContinuous cutting General cutting Interrupted cutting
CT10
Turning Chip Breakers
Recommended chip breaker for workpiece■ Materials : SM10C, SM15C, SM25C, SS400, SCr415, SCM415, etc. Soft steel
Hardness : under 180HB
0.1 ~
0.5
~ 1.5
0.03
0.10
~ 0.25
280
0.05
0.15
~ 0.35
NC3010NC3120
310270
0.10
0.20
~ 0.40
NC3010NC3120
300230
0.08
0.20
~ 0.40
NC3010NC3120
290250
0.10
0.25
~ 0.50
NC3010NC3120NC3030CN2000
270230210220
0.25
0.45
~ 0.65
NC3010NC3120NC3030
150130100
0.3 ~
1.0
~ 3.5
0.8 ~
1.5
~ 3.5
0.8 ~
1.5
~ 3.0
1.0 ~
2.5
~ 5.0
2.5 ~
4.0
~ 7.0
HU
VF
HA
HC
VM
HR
CNG(M)G DNG(M)G TNG(M)GSNG(M)G
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
0.1 ~
0.5
~ 1.5
HFP
0.5 ~1.5
~ 3.5
HMP
1.0 ~
2.0
~ 3.0
C25
0.05
0.15
~ 0.25
NC3010NC3120CC105
280250250
0.08
0.20
~ 0.40
NC3010NC3120CN2000
260230230
0.10
0.25
~ 0.35
NC3010NC3120
250220
CCG(M)T DCG(M)T TCG(M)T VCG(M)TSCG(M)T
CCMT DCMT TCMT VCMTSCMT
CCMT DCMT TCMTSCMT
● : The first recommended cutting condition
12B
Turn
ing G
rade
sTu
rnin
g C/
BTu
rning
Inse
rtsEx
tern
al Ho
lder
Borin
g Ba
rCa
rtrid
geAu
to T
ools
Turn
ing
>>
>
Car
bide
Sha
nkBo
ring
Bar
Workpiece
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
chip breaker(C/B), insert shape & feedGrades &
Cutting speed
Selecting C/B and grades Insert shape
Neg
ativ
eP
osi
tive
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
heavyroughing
roughing
mediummachining
medium tofinishing
finishing
Ultra-finishing
mediummachining
medium tofinishing
medium machining
finishing
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
NC3010NC3020NC3120
Turning Chip Breakers
Recommended chip breaker for workpiece
200180170150
■ Materials : S45C, S55C, SCM430, SCM440, etc. General steelHardness : under 180~260HB
0.05
0.15
~ 0.35
220200190
0.08
0.20
~ 0.40
NC3010NC3020NC3120NC3030
210190180160
0.10
0.25
~ 0.50
NC3010NC3020NC3120NC3030
200180170150
0.25
0.45
~ 0.65
NC3010NC3020NC3120NC3030
170150150130
0.3 ~
1.0
~ 3.5
0.8 ~
1.5
~ 3.0
1.0 ~
2.5
~ 5.0
2.5 ~
4.0
~ 7.0
VF
HC
VM
HR
0.1 ~
0.5
~ 1.5
HFP
0.5 ~1.5~ 3.5
HMP
1.0 ~
2.0
~ 3.0
C25
0.05
0.15
~ 0.25
NC3010NC3020NC3120CC105
220190180200
0.08
0.20
~ 0.40
NC3010NC3020NC3120NC3030CN2000
210190180150170
0.1
0.25
~ 0.35
NC3010NC3020NC3120NC3030
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CCG(M)T DCG(M)T TCG(M)T VCG(M)TSCG(M)T
CCMT DCMT TCMT VCMTSCMT
CCMT DCMT TCMTSCMT
● : The first recommended cutting condition
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
13B
Turning GradesTurning C/B
Turning InsertsExternal Holder
Boring BarCartridge
Auto ToolsTurning
>>
>C
arbide ShankBoring Bar
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
Workpiecechip breaker(C/B), insert shape & feed Grades &
Cutting speed
Selecting C/B and grades Insert shape
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
Neg
ativ
eP
osi
tive
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
roughing
heavyroughing
finishing
medium tofinishing
mediummachining
medium tofinishing
medium machining
finishing
Turning Chip Breakers
■ Materials : SNC415, SNC815, SNCM240, SNCM439, STS12, STS61, etcSCM440, Hardened steel
Hardness : 260~350HB
0.08
0.15
~ 0.30
NC3010NC3020NC3120
130110110
0.10
0.20
~ 0.35
NC3010NC3020NC3120NC3030
150130130110
0.15
0.25
~ 0.50
NC3010NC3020NC3120CN2000
13011010090
0.25
0.35
~ 0.60
NC3010NC3020NC3120NC3030
100909080
0.3 ~
1.0
~ 3.5
0.8 ~
1.5
~ 3.0
1.0 ~
2.5
~ 5.0
2.5 ~
4.0
~ 7.0
VF
HC
VM
HR
0.1 ~
0.5
~ 1.5
HFP
0.5 ~
1.5
~ 3.5
HMP
1.0 ~
2.0
~ 3.0
C25
0.05
0.10
~ 0.20
NC3010NC3020NC3120CC105
130120110120
0.08
0.15
~ 0.25
NC3010NC3020NC3120CN2000
120110110100
0.10
0.20
~ 0.30
NC3010NC3020NC3120NC3030
11010010090
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CCG(M)T DCG(M)T TCG(M)T VCG(M)TSCG(M)T
CCMT DCMT TCMT VCMTSCMT
CCMT DCMT TCMTSCMT
● : The first recommended cutting condition
14B
Turn
ing G
rade
sTu
rnin
g C/
BTu
rning
Inse
rtsEx
tern
al Ho
lder
Borin
g Ba
rCa
rtrid
geAu
to T
ools
Turn
ing
>>
>
Car
bide
Sha
nkBo
ring
Bar
Recommended chip breaker for workpiece
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
Workpiecechip breaker(C/B), insert shape & feed Grades &
Cutting speed
Selecting C/B and grades Insert shape
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
Neg
ativ
eP
osi
tive
CNMG WNMGVNMGDNMG TNMGSNMG
Turning Chip Breakers
■ Materials : STS430, STS444, STS416, SS432, etcFerritic, Martensitic Stainless steel
Hardness : 135~275HB
0.1
0.25
~ 0.40
NC9020PC9030
180160
0.20
0.40
~ 0.60
NC9020PC9030
160120
0.15
0.3
~ 0.50
NC9020PC9030
170140
1.0 ~
2.5
~ 4.0
2.0 ~
4.5
~ 6.5
1.5 ~
3.0
~ 5.5
HS
VM
GS
0.1 ~
0.5
~ 1.5
HFP
0.5 ~
1.5
~ 3.0
HMP
1.0 ~
1.5
~ 3.0
C25
0.05
0.15
~ 0.25
NC9020PC9030
180160
0.10
0.20
~ 0.30
NC9020PC9030
170150
0.15
0.25
~ 0.35
NC9020PC9030
160140
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CCG(M)T DCG(M)T TCG(M)T VCG(M)TSCG(M)T
CCMT DCMT TCMT VCMTSCMT
CCMT DCMT TCMTSCMT
● : The first recommended cutting condition
0.03
0.15
~ 0.30
NC9020PC9030
190170
0.5 ~
1.5
~ 2.5
HA
15B
Turning GradesTurning C/B
Turning InsertsExternal Holder
Boring BarCartridge
Auto ToolsTurning
>>
>C
arbide ShankBoring Bar
Recommended chip breaker for workpiece
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
Workpiecechip breaker(C/B), insert shape & feed Grades &
Cutting speed
Selecting C/B and grades Insert shape
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
Neg
ativ
eP
osi
tive
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
medium tofinishing
medium marchining
Interrupredheavy roughing
continuousheavy roughing
finishing
mediummachining
medium tofinishing
Turning Chip Breakers
■ Materials : STS304, STS316, STS347, STS387, STS202, etcAustenitic Stainless steel
Hardness : 135~185HB
0.1
0.25
~ 0.40
NC9020PC9030
150130
0.20
0.40
~ 0.60
NC9020PC9030
13090
0.15
0.3
~ 0.50
NC9020PC9030
140110
1.0 ~
2.5
~ 4.0
2.0 ~
4.5
~ 6.0
1.5 ~
3.0
~ 5.5
HS
VM
GS
0.1 ~
0.5
~ 1.5
HFP
0.5 ~
1.5
~ 3.0
HMP
1.0 ~
1.5
~ 3.0
C25
0.05
0.15
~ 0.25
NC9020PC9030
150130
0.10
0.20
~ 0.30
NC9020PC9030
140120
0.15
0.25
~ 0.35
NC9020PC9030
130110
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CCG(M)T DCG(M)T TCG(M)T VCG(M)TSCG(M)T
CCMT DCMT TCMT VCMTSCMT
CCMT DCMT TCMTSCMT
● : The first recommended cutting condition
0.03
0.15
~ 0.30
NC9020PC9030
160140
0.5 ~
1.5
~ 2.5
HA CNMG WNMGVNMGDNMG TNMGSNMG
16B
Turn
ing G
rade
sTu
rnin
g C/
BTu
rning
Inse
rtsEx
tern
al Ho
lder
Borin
g Ba
rCa
rtrid
geAu
to T
ools
Turn
ing
>>
>
Car
bide
Sha
nkBo
ring
Bar
Recommended chip breaker for workpiece
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
Workpiecechip breaker(C/B), insert shape & feed Grades &
Cutting speed
Selecting C/B and grades Insert shape
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
Neg
ativ
eP
osi
tive
medium tofinishing
medium machining
Interrupredheavy roughing
continuousheavy roughing
finishing
mediummachining
medium tofinishing
Turning Chip Breakers
■ Materials : GC250, GC300, GCD400, GCD700, etc : Gray cast iron, Ductile cast ironHardness : 135 ~185HBTensile strength : 450N/mm2
0.1 ~
0.4
~ 1.0
0.5 ~
2.0
~ 3.5
0.05
0.10
~ 0.50
0.2
0.35
~ 0.6
DBNX10DBN500DBN700NC305KNC6110NC6010NC315K
150 ~ 200200 ~ 500500 ~ 2000300 ~ 500250 ~ 450200 ~ 350150 ~ 300
C/B None
B25
CNMA DNMA TNG(M)GSNG(M)G
0.20
0.35
~ 0.50
NC305KNC6110NC6010NC315K
0.15
0.30
~ 0.50
NC305KNC6110NC6010NC315K
NC305KNC6110NC6010NC315K
450~550350~450250~300200~250
400~450300~400250~350150~250
450~550350~450250~300200~250
400~450300~400250~350150~250
0.25
0.35
~ 0.60
NC305KNC6110NC6010NC315K
0.30
0.70
~ 1.10
NC6110NC6010NC315K
180150130
1.0 ~
3.0
~ 4.5
1.0 ~
2.5
~ 4.0
2.5 ~
3.5
~ 6.0
4.3 ~
6.5
~ 10.0
GR
VM
HR
GH
0.5 ~
1.5
~ 3.0
HMP
1.0 ~
2.0
~ 3.5
C25
0.08
0.20
~ 0.40
NC305KNC6110NC6010NC315K
250230220200
0.10
0.25
~ 0.40
NC305KNC6110NC6010NC315K
250230220200
CNMG WNMGVNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CNMG WNMGDNMG TNMGSNMG
CCMT DCMT TCMT VCMTSCMT
CNMG DNMG TNMG VNMGSNMG
CCMT DCMT TCMTSCMT
CNMM SNMM
● : The first recommended cutting condition
17B
Turning GradesTurning C/B
Turning InsertsExternal Holder
Boring BarCartridge
Auto ToolsTurning
>>
>C
arbide ShankBoring Bar
Recommended chip breaker for workpiece
finishing
medium tofinishing
medium machining
heavyroughing
roughing
heavyroughing
mediummachining
medium tofinishing
[NEGA]CN G
[NEGA]WN G
[NEGA]DN G
[NEGA]TN G
[NEGA]VN G
[NEGA]SN G
Workpiecechip breaker(C/B), insert shape & feed Grades &
Cutting speed
Selecting C/B and grades Insert shape
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)
Neg
ativ
eP
osi
tive
[POSI]CC T
[POSI]WC T
[POSI]DC T
[POSI]TC T
[POSI]VC T,VB T
[POSI]SC T
Depth of cut(mm) C/B Cutting edge Feed
(mm/rev) GradesCuttingSpeed(m/min)