Handbook Parting Off 2009 En

8/16/2019 Handbook Parting Off 2009 En

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Product handbook

Parting off

_Walter Cut

Parting off experts


2/44


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CONTENTS

Walter Cut parting off range

2 Tiger·tec® grades

4 Walter Cut tools

Walter Cut tools for parting off

8 System overview

10 Tools up to 1.260 inch parting off diameter



Geometries

19 GX geometries

24 FX geometries

Technical information

28 Grade application chart

30 Cutting data

32 User guide

38 Failure analysis

39 Wear analysis

40 Hardness comparison table

41 Calculation Formulas

Parting off


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2

Walter Cut:

Tiger·tec® cutting materials for grooving

and parting off

Tiger·tec® for Walter Cut

Completely innovative coatings and

geometries achieve peak performances

when grooving and parting off.

With this innovative development, it is

possible for the first time to apply an

aluminum oxide coating in a PVD

process to carbide indexable inserts.

This PVD Tiger offers a previously

unknown degree of toughness and wear

resistance – which is particularly

important in parting off.In addition to this patented PVD

Tiger·tec® coating and the proven CVD

Tiger·tec® coating, there is a complete

Tiger·tec® cutting tool material

package available for the Walter Cut

parting off system.


5/44

Walter Cut – Parting off 3

WSM / WSP PVD Al

20

3

THE INSERT GRADES

WSP43 – Tiger·tec® PVD Al2O

3

Maximum toughness and process–

reliability for difficult to machine

materials, including heat resistant

alloys, steel and stainless steel

The cutting material for unfavorable–

conditions, e.g., heavily interrupted

cuts, very unstable clamping,

unstable machines and low cutting

speeds

WSM33 – Tiger·tec®

PVD Al2O3Maximum resistance to wear and–

temperature for difficult to machine

materials including heat resistant

alloys, steel and stainless steel

The universal cutting material covers–

the majority of all applications

WPP23 – Tiger·tec® CVD

Maximum hot hardness and wear–

resistance for steel

For use in stable conditions in–

conjunction with high cutting speeds

THE APPLICATION

For grooving and parting off–

From unfavorable to stable conditions–

The Walter– Tiger·tec® grades cover

the complete range of grooving

YOUR ADVANTAGES

High productivity due to a reliable–machining process

High temperature resistance–

in conjunction with high

toughness – especially when

parting off to center

High cutting edge stability due to–

low coating temperature and at

the same time offering high wear

resistance

Smooth surface to reduce–

built-up cutting edges

Toughness

Wear resistance

Current PVD grades


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4

Walter Cut XLDE

The little guy who packs quite a punch

Walter Cut monoblock toolholder XLDE

THE TOOL

Walter Cut monoblock tools have–

been specially designed for parting

offClamping screw with double–

inclination of 20° in axial and radial

directions allowing for easy access to

the insert clamping screw

For 2-edge GX16 grooving inserts–

Insert widths: 2, 2.5, 3 mm–

Shank sizes:–

10x 10, 12 x 12, 16 x 16, 20x20 mm

Tiger·tec®

cutting tool

materials

Stable

support face

Locking screw inclined:

20° in axial direction

20° in radial direction

THE APPLICATION

Parting off of diameters up to–

32 mm

Can be used on all types of lathes,–in particular

• Automatic lathes

• Swiss type machines

• Multi-spindle machines

• Lathes with bar feed

Ideally suited for small parts–

production as well as for general

mechanical engineering


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500 1,000 2,000 2,500 3,000 3,500 4,0001,500

THE TOOL STYLES

CUTTING DATA

vc 280 SFM

f 0.002 inch

s 0.079 inch

T 0.197 inch

Parting off of pistons

[M2 ISO P]

Tool: XLDE R 1212K–GX16–1

Insert: GX16-1E200 N020-CF6

Insert grade: WSP 43

Machine: Star SB16

[pieces]

Competition

Walter

+ 25%

Comparison of number of components

Inserts can be changed without

removing the tool from machines

with linear slides

XLDE L … C XLDE L

XLDE R … CXLDE R


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6

Walter Cut G1011:

One for all

Walter Cut monoblock toolholder G1011:

Reduced tool head height

Locking screw can be

accessed from above

and below

New insert seat design

Optimal screw position

THE TOOL

Walter Cut monoblock tools for–

grooving, groove-turning and

parting offLocking screw can be accessed from–

above and below

Reduced head height – eases chip–

evacuation

For 2-cutting edge GX24 grooving–

insert

Insert widths 0.118, 0.157, 0.197, 0.236–

inch

Cutting depths 0.472, 0.827 inch–

Shank sizes 0.750 x 0.750 inch,–

1.000 x 1.000 inch

THE APPLICATION

First choice for all OD grooving–

operations

Parting off of diameters up to 1.654 in–Grooving and groove-turning–

operations up to a depth of 0.827 in

For use on lathes of all types–


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100 200 400 500 600300

THE BENEFITS TO YOU AT A GLANCE

Simple chip evacuation due to reduced

tool head height [h]

Optimum stability due to two cutting

depths

Greatest clamping force due to optimum

screw position.

CUTTING DATA

vc 350 SFM

f 0.004 inch

s 0.118 inch

T 0.532 inch

[pieces]

Parting off operation of a guide pin

[O1, ISO P]

Tool: G1011.2020R-3T21GX24

Insert: GX24-2E300 N030-UF4

Insert grade: WSM 33

Machine: TAE 30N

Competition

Walter

+150%

Comparison of number of components

Simple handling in inverted use

h

0.827 in

f

0.472 in


10/44

8

Max. diameter 1.260 inch

Shank

size

NCAE G 1011 XLCE / XLCF

XLDE /

XLDE … C

Page 10 Page 11 Page 12 Page 13

s Tmax s Tmax s Tmax s Tmax

0.375 x 0.3750.087 0.591 2.0 mm 10 mm

2.5 mm 10 mm

0.500 x 0.500

0.077-0.098 0.276 0.087 0.591 2.0 mm 12 mm

0.118-0.178 0.276 2.5 mm 12 mm

3.0 mm 12 mm

0.625 x 0.625

0.077-0.098 0.276 0.087 0.591 2.0 mm 16 mm

0.118-0.178 0.276 0.122 0.690 2.5 mm 16 mm

3.0 mm 16 mm

0.750 x 0.750

0.077-0.098 0.472 0.118 0.472 2.0 mm 16 mm

0.118-0.178 0.472 0.156 0.472 2.5 mm 16 mm

0.157-0.197 0.472 0.197 0.472 3.0 mm 16 mm

0.236 0.472

1.000 x 1.000

0.077-0.098 0.472 0.118 0.472

0.118-0.178 0.472 0.156 0.472

0.157-0.197 0.472 0.197 0.472

0.236 0.472 0.236 0.472

1.250 x 1.000

0.118-0.178 0.472

0.157-0.197 0.472

0.236 0.472

System overview

Walter Cut parting off tools

1 s t C H O

I C E

s = cutting width

Tmax = max. grooving depth

1 s t C H O

I C E

f o r m e t

r i c


11/44


Max. diameter 1.654 inch Max. diam. 6.300 in

G 1011 NCBE XLCF NCDE

XLCEN /

XLCFN NCDE

Page 14 Page 15 Page 14 Page 15 Page 16 Page 17

s Tmax s Tmax s Tmax s Tmax s Tmax s Tmax

0.118 0.827 0.118 0.827 0.122 0.787 0.087 0.787 0.087 0.980

0.156 0.827 0.161 0.984 0.122 0.787 0.122 1.380

0.197 0.827 0.161 0.787 0.161 1.570

0.236 0.827

0.118 0.827 0.118 0.827 0.087 0.787 0.087 1.180

0.156 0.827 0.157 0.827 0.122 1.970 0.122 0.984/1.378

0.197 0.827 0.197 0.827 0.161 1.970 0.161 0.984/1.378

0.236 0.827 0.236 0.827 0.201 2.160 0.201 0.984/1.378

0.315 0.827 0.256 2.160 0.256 0.984/1.378

0.157 0.827 0.087 1.180

0.197 0.827 0.122 1.970 0.122 1.260/1.772

0.236 0.827 0.161 1.970 0.161 1.260/1.772

0.201 2.160 0.201 1.260/1.772

0.256 2.160 0.256 1.260/1.772

0.323 3.150

0.323 3.150

0.382 3.150

1 s t C H O

I C E

1 s t C H O

I C E


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10

Walter Cut

Tools for parting off up to 1.250 inch

sin

Tmaxin

h = h1in

bin Designation Type

0.077–0.0980.276 0.500 0.500 NCAE 12–0808 R/L–GX 09–1

GX 09–1 …0.276 0.625 0.625 NCAE 16–1010 R/L–GX 09–1

0.118–0.1780.276 0.500 0.500 NCAE 12–0808 R/L–GX 09–2

GX 09–2 …0.276 0.625 0.625 NCAE 16–1010 R/L–GX 09–2

0.077–0.098

0.472 0.750 0.750 NCAE 20–1212 R/L–GX 16–1

GX 16–1 …0.472 1.000 1.000 NCAE 25–1616 R/L–GX 16–1

0.118–0.178

0.472 0.750 0.750 NCAE 20–1212 R/L–GX 16–2

GX 16–2 …0.472 1.000 1.000 NCAE 25–1616 R/L–GX 16–2

0.472 1.250 1.250 NCAE 32–8585 R/L–GX 16–2

0.157–0.197

0.472 0.750 0.750 NCAE 20–1212 R/L–GX 16–3

GX 16–3 …0.472 1.000 1.000 NCAE 25–1616 R/L–GX 16–3

0.472 1.250 1.250 NCAE 32–8585 R/L–GX 16–3

0.236 0.472 1.000 1.000 NCAE 25–1616 R/L–GX 16–4 GX 16–4 …0.472 1.250 1.250 NCAE 32–8585 R/L–GX 16–4

For inserts see page 19.

NCAE

These tools are also available in Walter Capto™ version.

See the Walter general catalog.


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sin

Tmaxin

h = h1in


0.1180.472 0.750 0.750 G1011.12 R/L-3T12GX24

GX 24–2E3 . .0.472 1.000 1.000 G1011.16 R/L-3T12GX24

0.1560.472 0.750 0.750 G1011.12 R/L-4T12GX24

GX 24–3E4 . .0.472 1.000 1.000 G1011.16 R/L-4T12GX24

0.197

0.472 0.750 0.750 G1011.12 R/L-5T12GX24

GX 24–3E5 . .0.472 1.000 1.000 G1011.16 R/L-5T12GX24

0.2360.472 0.750 0.750 G1011.12 R/L-6T12GX24

GX 24–4E6 . .0.472 1.000 1.000 G1011.16 R/L-6T12GX24


G1011


14/44

12

s

b

hh1

Walter Cut


sin

Tmaxin

Dmaxin

h = h1in


0.087

0.591 1.181 0.375 0.375 XLCE R/L 06 M22–FX-E

FX 2.2 . . .

0.591 1.181 0.500 0.500 XLCE R/L 08 F22–FX-E

0.591 1.181 0.500 0.500 XLCE R/L 08 M22–FX-E

0.591 1.181 0.562 0.563 XLCE R/L 09 M22–FX-E

0.591 1.181 0.625 0.625 XLCE R/L 10 H22–FX-E

0.122 0.690 1.380 0.625 0.625 XLCF R/L 10 H31–FX-E FX 3.1 . . .


XLCE / XLCF


15/44


smm

Tmaxmm

Dmaxmm

h = h1mm

bmm Designation Type

2.0–2.5

10 20 10 10 XLDE R/L 1010 K–GX16–1

GX 16–1E2 . .12 24 12 12 XLDE R/L 1212 K–GX16–1

16 32 16 16 XLDE R/L 1616 K–GX16–1

16 32 20 20 XLDE R/L 2020 K–GX16–1

3.0

12 24 12 12 XLDE R/L 1212 K–GX16–2

GX 16–2E3 . .16 32 16 16 XLDE R/L 1616 K–GX16–2

16 32 20 20 XLDE R/L 2020 K–GX16–2

2.0–2.5

10 20 10 10 XLDE R/L 1010 K–GX16–1C

GX 16–1E2 . .12 24 12 12 XLDE R/L 1212 K–GX16–1C

16 32 16 16 XLDE R/L 1616 K–GX16–1C

3.012 24 12 12 XLDE R/L 1212 K–GX16–2C

GX 16–2E3 . .16 32 16 16 XLDE R/L 1616 K–GX16–2C


XLDE / XLDE … C

Tool styles

Normal version and contra version ( … C)

XLDE L … C XLDE LXLDE R … CXLDE R

Walter Cut

Tools for parting off up to 32 mm


16/44

14

s

b

hh1

sin

Tmaxin

h = h1in


0.1180.827 0.750 0.750 G1011.12 R/L–3T21GX24

GX 24–2E3 . .0.827 1.000 1.000 G1011.16 R/L–3T21GX24

0.1560.827 0.750 0.750 G1011.12 R/L–4T21GX24

GX 24–3E4 . .0.827 1.000 1.000 G1011.16 R/L–4T21GX24

0.197

0.827 0.750 0.750 G1011.12 R/L–5T21GX24

GX 24–3E5 . .0.827 1.000 1.000 G1011.16 R/L–5T21GX24

0.2360.827 0.750 0.750 G1011.12 R/L–6T21GX24

GX 24–4E6 . .0.827 1.000 1.000 G1011.16 R/L–6T21GX24


G1011

Walter Cut


sin

Tmaxin

Dmaxin

h = h1in


0.122 0.787 1.575 0.750 0.750 XLCF R/L 12 K31–FX-E FX 3.1 . . .

0.161 0.984 1.969 0.750 0.750 XLCF R/L 12 K41–FX-E FX 4.1 . . .


XLCF


17/44


s

b

hh1

sin

Tmaxin

h = h1in


0.1180.827 0.750 0.750 NCBE 20–1212 R/L–GX 24–2–21

GX 24–2 …0.827 1.000 1.000 NCBE 25–1616 R/L–GX 24–2–21

0.157–0.1970.827 1.000 1.000 NCBE 25–1616 R/L–GX 24–3–21

GX 24–3 …0.827 1.250 1.000 NCBE 32–8585 R/L–GX 24–3–21

0.236

0.827 1.000 1.000 NCBE 25–1616 R/L–GX 24–4–21

GX 24–4 …0.827 1.250 1.000 NCBE 32–8585 R/L–GX 24–4–21

0.315 0.827 1.000 1.000 NCBE 25–1616 R/L–GX 24–5–21 GX 24–5 …


sin

Tmaxin

h = h1in


0.0870.787 0.750 0.750 NCDE 20–1212 R/L–FX 22–20

FX 2.2 …0.787 1.000 1.000 NCDE 25–1616 R/L–FX 22–20

0.122 0.787 0.750 0.750 NCDE 20–1212 R/L–FX 31–20 FX 3.1 …

0.161 0.787 0.750 0.750 NCDE 20–1212 R/L–FX 41–20 FX 4.1 …


NCBE

NCDE




18/44

16

h4 h3

s

sin

Tmaxin

h3 =h4in


0.0870.980 1.024 XLCEN 2602 J22–FX

FX 2.2 . . .1.180 1.260 XLCEN 3202 M22–FX

0.1221.380 1.024 XLCFN 2603 J31–FX

FX 3.1 . . .1.970 1.260 XLCFN 3203 M31–FX

0.161

1.570 1.024 XLCFN 2604 J41–FX

FX 4.1 . . .1.970 1.260 XLCFN 3204 M41–FX

0.201 2.160 1.260 XLCFN 3205 M51–FX FX 5.1 . . .

0.256 2.160 1.260 XLCFN 3206 M65–FX FX 6.5 . . .

0.323 3.150 1.811 XLCEN 4608 S82–FX FX 8.2 . . .

0.382 3.150 1.811 XLCFN 4609 S97–FX FX 9.7 . . .


XLCEN / XLCFN

Walter Cut



19/44


s

b

hh1

sin

Tmaxin

h = h1in


0.122

0.984 1.000 1.000 NCDE 25–1616 R/L–FX 31–25

FX 3.1 …1.260 1.250 1.000 NCDE 32–8585 R/L–FX 31–32

1.378 1.000 1.000 NCDE 25–1616 R/L–FX 31–35

1.772 1.250 1.000 NCDE 32–8585 R/L–FX 31–45

0.161

0.984 1.000 1.000 NCDE 25–1616 R/L–FX 41–25

FX 4.1 …1.260 1.250 1.000 NCDE 32–8585 R/L–FX 41–32

1.378 1.000 1.000 NCDE 25–1616 R/L–FX 41–35

1.772 1.250 1.000 NCDE 32–8585 R/L–FX 41–45

0.201

0.984 1.000 1.000 NCDE 25–1616 R/L–FX 51–25

FX 5.1 …1.260 1.250 1.000 NCDE 32–8585 R/L–FX 51–32

1.378 1.000 1.000 NCDE 25–1616 R/L–FX 51–35

1.772 1.250 1.000 NCDE 32–8585 R/L–FX 51–45

0.256

0.984 1.000 1.000 NCDE 25–1616 R/L–FX 65–25

FX 6.5 …1.260 1.250 1.000 NCDE 32–8585 R/L–FX 65–32

1.378 1.000 1.000 NCDE 25–1616 R/L–FX 65–35

1.772 1.250 1.000 NCDE 32–8585 R/L–FX 65–45


NCDE




20/44

18

IT’S STRONGER.IT’S TOUGHER.IT GROOVES!

The new generation of Walter Cut tools.

Because compromise is not an option

when it comes to grooving.

Expect more.

Engineer what you envision.

Experience the new Walter.


21/44


GX inserts for parting off

Geometry selection

Low High

S h a

r p

S t a b l e

Cutting edge

Feed

ISO P

Steel

Low High

S h a r p

S t a b l e

Cutting edge

Feed

CF6

(see p. 21)

ISO M

Stainlesssteel

ISO K

Cast iron

Low High

S h a r p

S t a b l e

Cutting edge

Feed

GD3

(see p. 22)

GD6

(see p. 23)

GD3

(see p. 22)

CE4

(see p. 20)

CE4

(see p. 20)

CE4

(see p. 20)

CF6

(see p. 21)

1 s t C H O I C E

1 s t C H O

I C E

1 s t C H O

I C E


22/44

20

20° 12°

6°

0.002 0.0100.004 0.006 0.008

0.079

0.098

0.118

0.157

0.197

0.236

0.0180.012 0.014 0.016

CE4 – the universal one

THE RIGHT CUTTING EDGE FOR

Grooving and parting off operations–

Moderate to high feeds–

Good chip formation–

Cutting edge design

GX–CE4

coated grades

P M K S

Designationl

insin

rin c W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

GX16–1E250 N020–CE4 0.654 0.098 0.008 — b c a c b c

GX16–2E300 N020–CE4 0.654 0.118 0.008 — b c a c b c

GX24–2E300 N020–CE4 0.945 0.118 0.008 — a b c a c b b c

GX24–3E400 N030–CE4 0.945 0.157 0.012 — a b c a c b b c

GX24–3E500 N030–CE4 0.945 0.197 0.012 — a b c a c b b cGX24–4E600 N030–CE4 0.945 0.236 0.012 — a b c a c b b c

GX16–1E250 R6–CE4 0.654 0.098 0.008 6° b c a c b c

GX16–2E300 R6–CE4 0.654 0.118 0.008 6° b c a c b c

GX16–1E250 L6–CE4 0.654 0.098 0.008 6° b c a c b c

GX16–2E300 L6–CE4 0.654 0.118 0.008 6° b c a c b c

Optimum indexable insert for:

machining conditions

good moderate poor

Insert width

Feed

l = overall length

For cutting speed recommendations see page 30.


23/44


19°

6°

0.002 0.0100.004 0.006 0.008

0.079

0.098

0.118

0.157

0.197

0.236

0.0180.012 0.014 0.016

GX–CF6

coated grades

P M K S

Designationl

insin

rin c W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

GX16–1E200 N020–CF6 0.654 0.079 0.008 — b c a c b c

GX16–1E250 N020–CF6 0.654 0.098 0.008 — b c a c b c

GX16–2E300 N020–CF6 0.654 0.118 0.008 — b c a c b c

GX16–1E200 R6–CF6 0.654 0.079 0.008 6° b c a c b c

GX16–1E250 R6–CF6 0.654 0.098 0.008 6° b c a c b cGX16–2E300 R6–CF6 0.654 0.118 0.008 6° b c a c b c

GX16–1E200 L6–CF6 0.654 0.079 0.008 6° b c a c b c

GX16–1E250 L6–CF6 0.654 0.098 0.008 6° b c a c b c

GX16–2E300 L6–CF6 0.654 0.118 0.008 6° b c a c b c

CF6 – the sharp one


Low feeds–

Stainless Steels–

Minimal burr/nib at center–

Low cutting force–

Cutting edge design

Insert width

Feed



good moderate poor

l = overall length



24/44

22

9°

6°

0.079

0.098

0.118

0.157

0.197

0.236

0.002 0.0100.004 0.006 0.008 0.0180.012 0.014 0.016

GD3 – the soft cutting one


very soft cutting action–

light to moderate feeds–

general parting off and grooving operations–

Cutting edge design

GX–GD3

Designation

coated grades

P M K S

lin

sin

rin W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

GX16–1E200 N020–GD3 0.630 0.079 0.008 a b c a c b b c

GX16–1E250 N020–GD3 0.630 0.098 0.008 a b c a c b b c

GX16–2E300 N030–GD3 0.630 0.118 0.012 a b c a c b b c

GX16–3E400 N040–GD3 0.630 0.157 0.016 a b c a c b b c

GX16–3E500 N040–GD3 0.630 0.197 0.016 a b c a c b b cGX16–4E600 N050–GD3 0.630 0.236 0.020 a b c a c b b c

GX24–2E300 N030–GD3 0.945 0.118 0.012 a b c a c b b c

GX24–3E400 N040–GD3 0.945 0.157 0.016 a b c a c b b c

GX24–3E500 N040–GD3 0.945 0.197 0.016 a b c a c b b c

GX24–4E600 N050–GD3 0.945 0.236 0.020 a b c a c b b c

Insert width

Feed

l = overall length




good moderate poor


25/44


6°

24° 15°

0.079

0.098

0.118

0.157

0.197

0.236

0.002 0.0100.004 0.006 0.008 0.0180.012 0.014 0.016

GD6 – the reliable one


medium feed rates–

long-chipping materials–

medium machining conditions–

Insert width

Feed

GX–GD6

Designation

coated grades

P M K S

lin

sin

rin W

X M

3 3

W A M

2 0

W X M

3 3

W A M

2 0

GX16–1E200 N020–GD6 0.630 0.079 0.008 c a b a

GX16–1E250 N020–GD6 0.630 0.098 0.008 c a b a

GX16–2E300 N030–GD6 0.630 0.118 0.012 c a b a

GX16–3E400 N040–GD6 0.630 0.157 0.016 c a b a

GX16–3E500 N040–GD6 0.630 0.197 0.016 c a b aGX16–4E600 N050–GD6 0.630 0.236 0.020 c a b a

GX24–2E300 N030–GD6 0.945 0.118 0.012 c a b a

GX24–3E400 N040–GD6 0.945 0.157 0.016 c a b a

GX24–3E500 N040–GD6 0.945 0.197 0.016 c a b a

GX24–4E600 N050–GD6 0.945 0.236 0.020 c a b a

Cutting edge designOptimum indexable insert for:


good moderate poor

l = overall length



26/44

24

FX inserts for parting off

Geometry selection

Low High

S h

a r p

S t a b l e

Cutting edge

Feed

ISO P

Steel

Low High

S h a r p

S t a b l e

Cutting edge

Feed

CE6

(see p. 26)

ISO MStainless

steel

ISO K

Cast iron

Low High

S h a r p

S t a b l e

Cutting edge

Feed

CD3(see p. 27)

CD3

(see p. 27)

CE6(see p. 26)

CE4

(see p. 25)

CE4

(see p. 25)

CE4

(see p. 25)CD3

(see p. 27)

CE6(see p. 26)

1 s t C H O

I C E

1 s t C H O I C E

1 s t C H O

I C E


27/44


7°

12°20°

0.087

0.122

0.161

0.201

0.256

0.323

0.382

0.002 0.0100.004 0.006 0.008 0.0180.012 0.014 0.016

FX-CE4 – the universal one


Grooving and parting off operations–

Moderate to high feeds–

Good chip formation–

Cutting edge design

FX–CE4

Designation

coated grades

P M K S

sin

rin c W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

FX2.2-E220N010-CE4 0.087 0.004 0° a b c a c b b c

FX3.1-E310N015-CE4 0.122 0.006 0° a b c a c b b c

FX4.1-E410N020-CE4 0.161 0.008 0° a b c a c b b c

FX5.1-E510N025-CE4 0.201 0.010 0° a b c a c b b c

FX6.5-E650N030-CE4 0.256 0.012 0° a b c a c b b cFX8.2-E820N040-CE4 0.323 0.016 0° a b c a c b b c

FX9.7-E970N040-CE4 0.382 0.016 0° a b c a c b b c

FX2.2-E220R/L4-CE4* 0.087 0.004 4° a b c a c b b c



Insert width

Feed

* for R/L version, see page 34.




good moderate poor


28/44

26

7°

20°

0.087

0.122

0.161

0.200

0.256

0.323

0.002 0.0100.004 0.006 0.008 0.0180.012 0.014 0.016

FX-CE6 – the free cutting one


light to moderate feeds–

long-chipping materials–

minimal nib left at center–

Cutting edge design

FX–CE6

Designation

coated grades

P M K S

sin

rin c W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

FX2.2-E220N015-CE6 0.087 0.006 0° a b c a c b b c

FX3.1-E310N020-CE6 0.122 0.008 0° a b c a c b b c

FX3.1-E310N040-CE6 0.122 0.016 0° a b c a c b b c

FX4.1-E410N020-CE6 0.161 0.008 0° a b c a c b b c

FX4.1-E410N050-CE6 0.161 0.020 0° a b c a c b b cFX2.2-E220R/L5-CE6* 0.087 0.006 5° a b c a c b b c





good moderate poor

Insert width

Feed

* for R/L version, see page 34.



29/44


7°

24° 12°

0.087

0.122

0.161

0.200

0.256

0.323

0.002 0.0100.004 0.006 0.008 0.0180.012 0.014 0.016

FX-CD3 – the stable one


unfavorable machining conditions–

medium feed range–

machining steel–

Cutting edge design

FX–CD3

Designation

coated grades

P M K S

sin

rin c W

P P 2 3

W S M

3 3

W S P 4 3

W S M

3 3

W S P 4 3

W P P 2 3

W S M

3 3

W S P 4 3

FX3.1-E310N040-CD3 0.122 0.016 0° a c c b c

FX4.1-E410N020-CD3 0.161 0.008 0° a c c b c

FX4.1-E410N050-CD3 0.161 0.020 0° a c c b c



good moderate poor

Insert width

Feed



30/44

28

Insert grades for parting off

Walter grade

designation

Standard

designation

Workpiece material group

P M K N S H

S t e e l

S t a i n l e s s s t e e l

C a s t i r o n

N o n - f e r r o u s m e t a l s

H e a t r e s i s t a n t a l l o y s

H a r d m a t e r

i a l s

WPP 23HC – P 20 ••

HC – K 30 •

HC – S 30 ••

WSM 33 HC – M 30 ••

HC – P 35 ••

HC – S 45 ••

WSP 43 HC – P 45 ••

HC – M 45 ••

WAM 20HC – M 20 ••

HC – S 20 •

WXM 33HC – M 35 ••

HC – P 40 •

HC = Coated carbide

Grade application chart

Primary application Additional application


31/44


Application area

Coating process Coating composition

01 10 20 30 40

05 15 25 35 45

CVDTiCN + Al2O3

(+TiN)

PVDTiAlN + Al2O3

(ZrCN)

PVDTiAlN + Al2O3

(ZrCN)

CVDTiCN + Al2O3

+ HfN

PVD

Multilayer

TiAlN / TiN

+ZrCN


32/44

30

Cutting data for Walter Cut – parting off

coated carbide grades

Classification of the main material groups and code letters

B r i n e l l h a r d n e s s H B

M a c h i n i n g g r o u p

4

M a t e r i a l

g r o u p

Workpiece material

P

Unalloyed steel¹

approx. 0.15% C annealed 125 1


approx. 0.45% C tempered 250 3


approx. 0.75% C tempered 300 5

Low-alloyed steel¹

annealed 180 6

tempered 275 7

tempered 300 8

tempered 350 9

High-alloyed steel andhigh-alloyed tool steel¹

annealed 200 10

hardened by tempering 325 11

Stainless steel¹annealed ferritic/martensitic 200 12

martensitic, tempered 240 13

M Stainless steel¹ austenitic2, retained 180 14

K

Grey cast ironpearlitic/ferritic 180 15

pearlitic (martensitic) 260 16

Cast iron withspheroidal graphite

ferritic 160 17

pearlitic 250 18

Malleable cast ironferritic 130 19

pearlitic 230 20

S

Heat resistant alloys

Fe basedannealed 200 31

hardened 280 32

Ni orCo based

annealed 250 33

hardened 350 34

cast 320 35

Titanium alloys Alpha + Beta alloys, hardened 10503 37

1 and cast steel

2 and austenitic / ferritic

3 Rm: tensile strength in MPa = N/mm2

4 The machining group categories can be found in the Walter general catalog.


33/44


Cutting speed vc [ft/min]

WPP 23 WSM 33 WSP 43 WAM 20 WXM 33

590 590

590 430 390 490

520 430 390 430

390 390 360 330

360 390 360 260

460 430 390 460

390 390 360 390

390 330 300 390

360 300 260 260

390 300 260 300

300 260 260

520 490 520 520 520

330 260 260 300 230

430 390 490 390

660

520

590

460

590

490

160 160

130 130

100 100

100 100

70 70

130 100


34/44

32

S

User Guide – parting off

Tool selection

General

It is essential to note that the most rigid tool possible should be selected.

This can reduce vibrations and increase the tool edge life.

Insert width

The insert width should be as narrow as

possible, but as wide as necessary.

By reducing the insert width, the

cutting force is reduced and saves

material.

Grooving depth

The max. grooving depth [Tmax] of the tool

or the max. overhang length of the

steel blade should not exceed

8 x insert width s.

The tool selected should always havethe minimal amount of overhang possible.


35/44


=

=

S

S S

S

1. Use a neutral edge where possible

Improved chip formation–

Lower axial forces–

Longer tool life–

2. Use the smallest insert width possible

Lower cutting force–

Reduced material consumption–

3. Use the largest tool possible (in relation to the height of the body)

Greater tool rigidity–

Reduced risk of vibration–Longer tool life–

1 s t C H O

I C E


36/44

34


Effect of a lead angle on machining

neutral right-hand left-hand

The insert is viewed from above in order

to determine the hand of the cutting

edge (right/left).

The following rule applies:

Direction of rotation of the machine

spindle:

clockwise ‡ right cutting edge

counter-clockwise ‡ left cutting edge

When solid material is parted

off, the use of inserts withlead angles reduces the size

of 'nib' remaining on the

component that has been

parted off.

When hollow material is parted off, the

use of inserts with lead angles prevents

stock remaining, which could, in some

circumstances, interfere with the rest

of the production process. It also leads

to lower burr formation.

The use of inserts with lead angles always has a negative effect on the

tool life. If possible, neutral inserts should be used.


37/44


FP

A

FN

B C

FP

Stability and tool life good poor

Radial cutting forces (positive) high low

Axial cutting forces (negative) low high

Remaining nib / burr large small

Risk of vibration low high

Surface finish and flatness good poor

Chip flow good poor

The feed values must be

reduced by approximately

30%, because the tool is

affected by the resultant

axial force (Fn), which can

lead to vibration and convex

machined surfaces.

Effects on machining

When inserts with lead angles are

used for parting off, the angle is likely

to cause poor chip formation.

The chip revolves at 90° to the main

cutting edge thereby not taking

on a clockspring shape (as with

a neutral insert), but instead that

of a spiral coil.

One possibility for guiding the chip is to interrupt cutting briefly once a grooving

depth of 1–2 x insert width s is reached. Once cutting resumes, the chip will flow in

the existing groove.


38/44

36

0.004"/4.0"

CH +0.002" +0.002"

CH


Tool set up

3. Set the tool in the machine as short as possible

Better machined face flatness–

Reduced risk of vibration–

Improved tool life–

1. Tool must be aligned 90° to the axis of rotation

Better machined face flatness–

Reduced risk of vibration–

2. Check center height

Improved tool life–

Reduced nib/burr formation–

If the tool is positioned over or under center, the effective rake and front

clearance angles change during machining.

Clamp the workpiece as short as possible


39/44



Machining

Chamfering and parting off

Chamfering internally before parting off

Parting off to a bore

1. Pre-groove 2. Chamfer 3. Part off

The hole must be pre-bored deep

enough that the entire insert width of

the parting off tool engages in the

cylindrical section of the hole.

The corner cutting edge of the chamfering

tool and parting off tool must be precisely

aligned to achieve as burr-free a result as

possible.


40/44

38


Fault analysis

Large residual nib / burr

Reduce the feed value by 50–70% at diameter‡

1.5 x s (s = insert width)

Use an insert with lead angle‡

Use a narrower insert (reduce the cutting force)‡

Use a smaller corner radius‡

Use a more positive geometry‡

Check the center height‡

Poor surface / vibration

Use a more rigid tool‡

Clamp the tool with a shorter overhang‡

Check whether the insert seat is damaged‡

Increase the cutting speed‡

Use a more positive geometry‡Increase the feed‡

Damage caused by chips

Use a geometry with greater chip forming‡

Lower the cutting speed‡

Use neutral inserts‡

Optimize coolant‡

Poor chip formation

Lower the cutting speed‡

Improve coolant‡

Use a geometry with greater chip forming‡

capability

Poor face flatness

Use an insert without, or with a small, lead angle‡

Use a tool with the shortest possible cutting depth for the application‡

Reduce the feed for inserts with a lead angle‡

Use a smaller corner radius‡

Use a more positive geometry‡Check for proper tool alignment‡


41/44



Wear analysis

Flank face wear

Use a more wear-resistant grade‡

Reduce the cutting speed‡

Improve coolant conditions‡

Plastic deformation

Use a more wear-resistant grade‡

Reduce feed‡


Reduce the cutting speed‡

Chipping

Use tougher grades of carbide‡

Use a more rigid tool‡

Use stronger geometries‡

Use a wider insert if necessary‡

Check the center height‡

Built-up cutting edge

Increase the cutting speed‡

Use a more positive geometry‡



42/44

40

Hardness comparison table

Tensile strength, Brinell, Vickers and Rockwell hardness (extract from DIN 50150)

Tensile

strength

[N/mm2]

Rm

Vickers

hardness

HV

HV

Brinell

hardness

HB

HB

Rockwell

hardness

HRC

HRC

255 80 76.0

270 85 80.7

285 90 85.5

305 95 90.2320 100 95.0

335 105 99.8

350 110 105

370 115 109

385 120 114

400 125 119

415 130 124

430 135 128

450 140 133465 145 138

480 150 143

495 155 147

510 160 152

530 165 156

545 170 162

560 175 166

575 180 171

595 185 176

610 190 181

625 195 185

640 200 190

660 205 195

675 210 199

690 215 204

705 220 209

720 225 214

740 230 219

755 235 223

770 240 228 20.3

785 245 233 21.3

800 250 238 22.2

820 255 242 23.1

835 260 247 24.0

850 265 252 24.8

865 270 257 25.6

880 275 261 26.4

Tensile

strength

[N/mm2]

Rm

Vickers

hardness

HV

HV

Brinell

hardness

HB

HB

Rockwell

hardness

HRC

HRC

900 280 266 27.1

915 285 271 27.8

930 290 276 28.5

950 295 280 29.2

965 300 285 29.8

995 310 295 31.0

1,030 320 304 32.2

1,060 330 314 33.3

1,095 340 323 34.4

1,125 350 333 35.5

1,155 360 342 36.61,190 370 352 37.7

1,220 380 361 38.8

1,255 390 371 39.8

1,290 400 380 40.8

1,320 410 390 41.8

1,350 420 399 42.7

1,385 430 409 43.6

1,420 440 418 44.5

1,455 450 428 45.3

1,485 460 437 46.1

1,520 470 447 46.9

1,555 480 (456) 47.7

1,595 490 (466) 48.4

1,630 500 (475) 49.1

1,665 510 (485) 49.81,700 520 (494) 50.5

1,740 530 (504) 51.1

1,775 540 (513) 51.7

1,810 550 (523) 52.3

1,845 560 (532) 53.0

1,880 570 (542) 53.6

1,920 580 (551) 54.1

1,955 590 (561) 54.7

1,995 600 (570) 55.2


43/44


Turning calculation formulas

Tensile

strength

[N/mm2]

Rm

Vickers

hardness

HV

HV

Brinell

hardness

HB

HB

Rockwell

hardness

HRC

HRC

2,030 610 (580) 55.7

2,070 620 (589) 56.3

2,105 630 (599) 56.8

2,145 640 (608) 57.3

2,180 650 (618) 57.8

660 58.3

670 58.8

680 59.2

690 59.7

700 60.1

720 61.0740 61.8

760 62.5

780 63.3

800 64.0

820 64.7

840 65.3

860 65.9

880 66.4

900 67.0

920 67.5

940 68.0

The hardness values converted i.a.w. these

tables are approximate only. See DIN 50150.

Tensile strength N/mm2 Rm

Vickers hardness HV Diamond pyramid 136°

Testing force F ≥ 98 N

HV

Brinell hardness HB

Calculated from:

HB = 0.95 x HV

0.102 x F/D2 = 30 N/mm2

F = testing force in N

D = sphere diameter in mm

HB

Rockwell hardness C Diamond cone 120°

Overall testing force 1471 ± 9 N

HRC

Number of revolutions

[rpm]vc x 12

Engagement time

Feed rate

[in/min]

Cutting speed

12[ft/min]

n Number of revolutions rpm

Dc Drill diameter in

vc Cutting speed ft/min

vf Feed rate in/min

f Feed per revolution in

th Engagement time min

lm Length of cut in


44/44

Documents

Handbook Parting Off 2009 En