KUB Centron

KU

B C

entr

on

®

®

Solid drilling up to 9 × D

2

4 × D 6 × D 8 × D

The new KUB Centron®

Advantages

✔ Short process times from high performance parameters

✔ Long tool life means low operating costs

✔ Modular design gives high flexibility

✔ High production reliability for boring depths up to 9×D

✔ Reliable machining in almost any materials

✔ Suitable for rotating and stationary and for vertical andhorizontal applications

✔ Combination options reduce tool costs

✔ Service-friendly

Possible combination

Ø 20 up to Ø 25

Drilling depth Drilling depth Drilling depth

Example:

3

KUB

Cent

ron

®

Design Features

InsertsNew cutting materials and geometriesguarantee maximum tool life andreliable machining.The internal and external insertsare identical. This preventsconfusion.

Central drill bitThe central drill bit guides the solid drill preciselyin the bore axis. This meansdimensional stability even at bore depths ofup to 9 × D.Optimised concentricity properties for the wholesystem mean the central drill bit and for theinserts have a noticeably longer life.

Basic elementThe newly designed chip channels improve chipremoval and at the same time increase the rigidityof the tool body. The modular designis service-friendly and increases flexibility becauseof the bore diameters which are available.With the tried and tested ABS connection,the KUB Centron® has no connection problems.

Guide padsThe carbide guide pads prevent thedrill from deflecting at the bore exitand reduce narrowing to a minimum(see "Setting the guide pads...").The screw connection allows easy changing andsetting on site by the user over the wholediameter range. Optimal guide control and highwear resistance through top quality coatings.

Connection pointThe new-style connection pointallows high torques to be transferred.Central positioning is produced bymeans of an accurately fitting centering spigot.Two tapered screws which act in the direction ofthe torque pull the drill head onto large drivepins, producing a precise and stable connectionbetween the drill head and the basic element.

4

A R F N S HDABS

d N L

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

V46 50200

V46 50210

V46 50220

V46 50230

V46 50240

V46 50250

V46 50260

V46 50270

V46 50280

V46 50290

V46 50300

V46 50310

V46 50320

V46 50330

V46 50340

V46 50350

V46 50360

V46 50370

V46 50380

V46 50390

V46 50400

V46 50410

V46 50420

V46 50430

V46 50440

V46 50450

50

50

50

145

185

235

113

150

200

0,52

0,55

0,63

��

W29 10010.0484

W29 10010.0479

W29 10010.0461

W29 10110.0477

WOEX030204-01 BK84

WOEX030204-01 BK79

WOEX030204-01 BK61

WOEX030204-11 BK77

V95 10012.0088V95 10012.0089V95 10310.008445

Ø 5

d1

19

19

19

V47 20201

V47 40201

V47 60201

L/D

4xD

6xD

8xD

63

63

63

235

310

390

185

260

340

1,68

2,08

2,50

38,5

38,5

38,5

V47 20401

V47 40401

V47 60401

4xD

6xD

8xD

50

50

50

160

210

260

130

175

230

0,66

0,77

0,90

25

25

25

V47 20261

V47 40261

V47 60261

4xD

6xD

8xD

50

50

50

195

255

330

160

215

290

0,93

1,13

1,40

32

32

32

V47 20331

V47 40331

V47 60331

4xD

6xD

8xD

W29 18010.0484

W29 18010.0479

W29 18010.0461

W29 18110.0477

WOEX 040304-01 BK84

WOEX 040304-01 BK79

WOEX 040304-01 BK61

WOEX 040304-11 BK77

W29 24010.0484

W29 24010.0479

W29 24010.0461

W29 24110.0477

WOEX 05T304-01 BK84

WOEX 05T304-01 BK79

WOEX 05T304-01 BK61

WOEX 05T304-11 BK77

L

N

ABS50ABS63

d1

D±0,1

0,031

0,035

0,038

0,042

0,045

0,048

0,052

0,065

0,065

0,065

0,069

0,073

0,077

0,092

0,092

0,092

0,097

0,102

0,107

0,111

0,130

0,156

0,156

0,156

0,156

0,162

W29 24010.0484

W29 24010.0479

W29 24010.0461

W29 24110.0477

WOEX 05T304-01 BK84

WOEX 05T304-01 BK79

WOEX 05T304-01 BK61

WOEX 05T304-11 BK77

V95 10032.0088V95 10032.0089V95 10330.008445

Ø 8

V95 10022.0088V95 10022.0089V95 10320.008445

Ø 6

V95 10022.0088V95 10022.0089V95 10320.008445

Ø 6

d2

� = Recommended� = Alternative

EP 0 547 049 and other patents (ABS®) and patent applications (KUB Centron®)

Order No.

forworkpiece material

Basic recommendation

Order No. ISO-Codesize

Drill head and basic element with ABS® connectiondrilling depth from 4 × D up to 9 × D – R.H. cutting

KUB Centron® Ø 20 – 45 mm

Order No. Order No.

Basic element

approx.*

Supply includes:Basic element complete.Drill head complete with clamping screw, adjusting screw,guide pads, screwdriver and allen key.

See page 8 for spares and accessories.Assembly instructions see page 12

Further diameters on request.

* The precise diameter to length ratio (L:D) is produced fromrelationship of the relevant basic element to the diameterof the drill head selected.

Insert (2)Drill Head Central drill bitØ d2

Basicelement

� 88 HSS TiCN coated (for GG, GGG)89 HSS TiN coated (for steel, aluminium andnon-ferrous metals)8445 HM TiCN/TiN coated

5

KUB

Cent

ron

®

St37-2 / 1.0037,

9SMn28 /1.0715,

St44-2 / 1.0044

St52-2 / 1.0050,

C55 / 1.0525,

16MnCr5 / 1.7131

9SMnPb28 / 1.0718

42CrMo4 / 1.7225,

CK60 / 1.1221

X6CrMo4 / 1.2341,

X165CrMoV12/1.2601

Inconel 718/2.4668,

Nimonic 80A/2.4631

TiAl5Sn2 / 3.7114

X2CrNi189 / 1.4306,

X5CrNiMo1810/

1.4401

X8CrNb17/1.4511,

X10CrNiMoTi1810/

1.4571

X20Cr13 / 1.4021,

X40Cr13 / 1.4034

GG-25/0.6025,

GG-35/0.6035

GG-NiCr202 / 0.6660

GGG-40 / 0.7040

GGG-50 / 0.7050

GGG-55 / 0.7055

GTW-55 / 0.8055

GGG-60 / 0.7060

GTS-65 / 0.8165

GGG-NiCr20-2 /

0.7661

GGV Ti < 0,2

GGV Ti > 0,2

CuZn36Pb3 / 2.1182,

G-CuPb15Sn /

2.1182

CuZn40Al1 / 2.0550,

E-Cu57 / 2.0060

AlMg1 / 3.3315,

AlMnCu / 3.0517

G-AlMg5 / 3.3561,

G-AlSi9Mg / 3.2373

G-AlSi10Mg / 3.2381

AF

NH

RS

1.0

�50

0

2.0

500-

900

2.1

<50

0

3.0

>90

0

4.0

>90

0

4.1

5.0

250

5.1

400

6.0

�60

0

6.1

<90

0

7.0

>90

0

8.0

180

8.1

250

9.0

130

�60

0

9.1

230

10.0

250

>60

0

10.1

200

10.2

300

12.0

90

12.1

100

13.0

60

13.1 75

14.0

100

15.0

1400

16.0

1800

Ø 2

0-25

0,12

0,10

0,08

0,12

0,08

0,07

––

0,07

0,10

0,08

0,14

0,12

0,12

0,12

0,12

0,10

0,10

0,14

0,08

0,07

0,10

0,12

––

Ø 3

3-45

0,14

0,12

0,10

0,14

0,10

0,07

––

0,10

0,12

0,10

0,16

0,14

0,14

0,14

0,14

0,12

0,12

0,16

0,10

0,07

0,14

0,14

––

250

200

250

180

160

80–

–18

016

012

020

016

016

014

012

010

080

200

250

350

250

200

––

Ø 2

6-32

0,14

0,12

0,08

0,14

0,10

0,07

––

0,10

0,12

0,10

0,16

0,14

0,14

0,14

0,14

0,12

0,12

0,16

0,08

0,07

0,12

0,14

––

W29 10030.0484

W29 10030.0463

W29 24130.0484

W29 24130.0479

W29 24030.046320

- 25

26 -

3233

- 45

WOEX030204-03 BK84

WOEX030204-03 BK 3

WOEX05T304-13 BK84

WOEX05T304-13 BK79

WOEX05T304-03 BK 3

D A R F N S H

W29 10010.0479

W29 10010.0404

W29 10010.0421

W29 10110.0421

20 -

2526

- 32

33 -

45

WOEX030204-01 BK79

WOEX030204-01 P40

WOEX030204-01 K10

WOEX030204-01 K10

D A R F N S H

��

��

W29 18010.0479

W29 18010.0404

W29 18010.0421

W29 18110.0421

WOEX040304-01 BK79

WOEX040304-01 P40

WOEX040304-01 K10

WOEX040304-01 K10

W29 24010.0479

W29 24010.0404

W29 24010.0421

W29 24110.0421

WOEX 05T304-01 BK79

WOEX 05T304-01 P40

WOEX 05T304-01 K10

WOEX 05T304-01 K10

W29 10010.0472

W29 10110.0450

W29 10130.0473

W29 18010.0472

W29 18110.0450

W29 18130.0473

W29 24010.0472

W29 24110.0450

W29 24130.0473

20 -

2526

- 32

33 -

45

WOEX030204-01 BK72

WOEX030204-11 BK50

WOEX030204-13 BK73

WOEX040304-01 BK72

WOEX040304-11 BK50

WOEX040304-11 BK73

WOEX05T304-01 BK72

WOEX05T304-11 BK50

WOEX05T304-13 BK73

D A R F N S H��

W29 18030.0484

W29 18030.0463

WOEX040304-03 BK84

WOEX040304-03 BK 3

Alternative Inserts

Important: See page 12 for application details and safety notes !

Technical Notes

Cutt

ing

spee

dv c m

/min

Mat

eria

l gro

up

Max. feedf (mm/rev)

Hard

ness

HB

Mat

eria

l

Mat

eria

l exa

mpl

em

ater

ial c

ode/

DIN

Stre

ngth

Rm

N/m

m2

non-alloy steels

non-alloy /

low alloy steels

lead alloys

non alloy / low alloy

steels: heat resostant

structural, heat treated,

nitride and tools steels

high alloy steels

high alloy steels

special alloys: Inconel,

Hastelloy, Nimonic,etc.

titanium,

titanium alloys

stainless steels

stainless steels

stainless /

fireproof steels

gray cast iron

alloy gray cast iron

spheroidal, graphite

cast iron, ferritic

spheroidal graphite

cast iron, ferritic/

perlitic

spheroidal graph. cast iron,

perlitic, malleable iron

alloyed spheroidal

graphite cast iron

vermicular cast iron

copper alloy, brass,

lead-alloy

bronze, lead bronze:

good cut

copper alloy, brass,

bronze:

average cut

wrought aluminium

alloys

cast alum. alloy:

Si-content <10%

magnesium alloy

cast alum.alloy:

Si-content >10%

hardened steels

< 45 HRC

hardened steels

> 45 HRC

Guideline values for solid drilling withKUB Centron® 4×D – 9×D

Insert forworkpiece material

for better chip control

ISO-Code

forworkpiece material

for greater strength

ISO-Code

Insert

Order No.size

Order No.size

for better wear resistanceInsert for

workpiece material

ISO-CodeOrder No.size

6

A R F N S HD N L

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

V46 50460

V46 50470

V46 50480

V46 50490

V46 50500

V46 50510

V46 50520

V46 50530

V46 50540

V46 50550

V46 50560

V46 50570

V46 50580

V46 50590

V46 50600

V46 50610

V46 50620

V46 50630

V46 50640

80

80

80

280

375

480

215

310

415

3,31

3,97

4,82

��

W29 34010.0484

W29 34010.0479

W29 34010.0461

W29 34110.0477

WOEX06T304-01 BK84

WOEX06T304-01 BK79

WOEX06T304-01 BK61

WOEX06T304-11 BK77

d1

44,5

44,5

44,5

V47 20460

V47 40460

V47 60460

L/D

4xD

6xD

8xD

W29 42010.0484

W29 42010.0479

W29 42010.0461

W29 42110.0477

WOEX 080404-01 BK84

WOEX 080404-01 BK79

WOEX 080404-01 BK61

WOEX 080404-11 BK77

0,18

0,18

0,19

0,20

0,21

0,22

0,22

0,23

0,24

0,29

0,30

0,31

0,31

0,32

0,33

0,34

0,35

0,36

0,37

80

80

80

325

435

560

260

370

495

4,3

5,42

6,68

53,5

53,5

53,5

V47 20550

V47 40550

V47 60550

4xD

6xD

8xD

V95 10042.0088V95 10042.0089V95 10340.008445

Ø 10

V95 10042.0088V95 10042.0089V95 10340.008445

Ø 10

L

N

ABS80

d1

D±0,1

d2

ABSd

� = Recommended� = Alternative

EP 0 547 049 and other patents (ABS®) and patent applications (KUB Centron®)

Order No.

forworkpiece material

Basic recommendation

Order No. ISO-Codesize

Drill head and basic element with ABS® connectiondrilling depth from 4 × D up to 9 × D – R.H. cutting

KUB Centron® Ø 46 – 64 mm

Order No. Order No.

Basic element

approx.*

Supply includes:Basic element complete.Drill head complete with clamping screw, adjusting screw,guide pads, screwdriver and allen key.

See page 8 for spares and accessories.Assembly instructions see page 12

Further diameters on request.

* The precise diameter to length ratio (L:D) is produced fromrelationship of the relevant basic element to the diameterof the drill head selected.

Insert (2)Drill Head Central drill bitØ d2

Basicelement

� 88 HSS TiCN coated (for GG, GGG)89 HSS TiN coated (for steel, aluminium andnon-ferrous metals)8445 HM TiCN/TiN coated

7

KUB

Cent

ron

®

St37-2 / 1.0037,

9SMn28 /1.0715,

St44-2 / 1.0044

St52-2 / 1.0050,

C55 / 1.0525,

16MnCr5 / 1.7131

9SMnPb28 / 1.0718

42CrMo4 / 1.7225,

CK60 / 1.1221

X6CrMo4 / 1.2341,

X165CrMoV12/1.2601

Inconel 718/2.4668,

Nimonic 80A/2.4631

TiAl5Sn2 / 3.7114

X2CrNi189 / 1.4306,

X5CrNiMo1810/

1.4401

X8CrNb17/1.4511,

X10CrNiMoTi1810/

1.4571

X20Cr13 / 1.4021,

X40Cr13 / 1.4034

GG-25/0.6025,

GG-35/0.6035

GG-NiCr202 / 0.6660

GGG-40 / 0.7040

GGG-50 / 0.7050

GGG-55 / 0.7055

GTW-55 / 0.8055

GGG-60 / 0.7060

GTS-65 / 0.8165

GGG-NiCr20-2 /

0.7661

GGV Ti < 0,2

GGV Ti > 0,2

CuZn36Pb3 / 2.1182,

G-CuPb15Sn /

2.1182

CuZn40Al1 / 2.0550,

E-Cu57 / 2.0060

AlMg1 / 3.3315,

AlMnCu / 3.0517

G-AlMg5 / 3.3561,

G-AlSi9Mg / 3.2373

G-AlSi10Mg / 3.2381

AF

NH

RS

1.0

�50

0

2.0

500-

900

2.1

<50

0

3.0

>90

0

4.0

>90

0

4.1

5.0

250

5.1

400

6.0

�60

0

6.1

<90

0

7.0

>90

0

8.0

180

8.1

250

9.0

130

�60

0

9.1

230

10.0

250

>60

0

10.1

200

10.2

300

12.0

90

12.1

100

13.0

60

13.1 75

14.0

100

15.0

1400

16.0

1800

Ø 4

6-54

250

200

250

180

160

80–

–18

016

012

020

016

016

014

012

010

080

200

250

350

250

200

––

Ø 5

5-64

W29 42130.0484

W29 42130.0479

W29 42030.0463

46 -

5455

- 64

WOEX 080404-13 BK84

WOEX 080404-13 BK79

WOEX 080404-03 BK 3

D A R F N S H

W29 34010.0479

W29 34010.0404

W29 34010.0421

W29 34110.0421

46 -

5455

- 64

WOEX06T304-01 BK79

WOEX06T304-01 P40

WOEX06T304-01 K10

WOEX06T304-01 K10

D A R F N S H

��

��

W29 42010.0479

W29 42010.0404

W29 42010.0421

W29 42110.0421

WOEX 080404-01 BK79

WOEX 080404-01 P40

WOEX 080404-01 K10

WOEX 080404-01 K10

W29 34010.0472

W29 34110.0450

W29 34130.0473

W29 42010.0472

W29 42110.0450

W29 42130.0473

46 -

5455

- 64

WOEX06T304-01 BK72

WOEX06T304-11 BK50

WOEX06T304-13 BK73

WOEX 080404-01 BK72

WOEX 080404-11 BK50

WOEX 080404-13 BK73

D A R F N S H��

W29 34130.0484

W29 34130.0479

W29 34030.0463

WOEX06T304-13 BK84

WOEX06T304-13 BK79

WOEX06T304-03 BK 3

0,16

0,16

0,14

0,16

0,14

0,10

––

0,12

0,14

0,12

0,25

0,20

0,25

0,25

0,25

0,20

0,20

0,25

0,15

0,12

0,25

0,20

––

0,14

0,14

0,12

0,14

0,14

0,08

––

0,10

0,12

0,10

0,18

0,15

0,18

0,18

0,18

0,15

0,15

0,20

0,12

0,10

0,18

0,15

––

Alternative Inserts

Important: See page 12 for application details and safety notes !

Technical Notes

Cutt

ing

spee

dv c m

/min

Mat

eria

l gro

up

Max. feedf (mm/rev)

Hard

ness

HB

Mat

eria

l

Mat

eria

l exa

mpl

em

ater

ial c

ode/

DIN

Stre

ngth

Rm

N/m

m2

non-alloy steels

non-alloy /

low alloy steels

lead alloys

non alloy / low alloy

steels: heat resostant

structural, heat treated,

nitride and tools steels

high alloy steels

high alloy steels

special alloys: Inconel,

Hastelloy, Nimonic,etc.

titanium,

titanium alloys

stainless steels

stainless steels

stainless /

fireproof steels

gray cast iron

alloy gray cast iron

spheroidal, graphite

cast iron, ferritic

spheroidal graphite

cast iron, ferritic/

perlitic

spheroidal graph. cast iron,

perlitic, malleable iron

alloyed spheroidal

graphite cast iron

vermicular cast iron

copper alloy, brass,

lead-alloy

bronze, lead bronze:

good cut

copper alloy, brass,

bronze:

average cut

wrought aluminium

alloys

cast alum. alloy:

Si-content <10%

magnesium alloy

cast alum.alloy:

Si-content >10%

hardened steels

< 45 HRC

hardened steels

> 45 HRC

Guideline values for solid drilling withKUB Centron® 4×D – 9×D

Insert forworkpiece material

for better chip control

ISO-Code

forworkpiece material

for greater strength

ISO-Code

Insert

Order No.size

Order No.size

for better wear resistanceInsert for

workpiece material

ISO-CodeOrder No.size

8

D

20-25

26-32

33-39

40-45

46-54

55-64

6IP

6IP

8IP

8IP

10IP

15IP

L05 00810

L05 00810

L05 00830

L05 00830

L05 00850

L05 00860

S/M2×3,5-6IP

S/M2,2×5,5-6IP

S/M2,5×7,4-8IP

S/M2,5×7,4-8IP

S/M3,5×7,3-10IP

S/M4,5-9-15IP

N00 56041

N00 57553

N00 57511

N00 57511

N00 57521

N00 57531

D

8IP

8IP

15IP

20IP

20IP

20IP

L05 00830

L05 00830

L05 00860

L05 00870

L05 00870

L05 00870

N00 56651

N00 57241

N00 57440

N00 57301

N00 57450

N00 57460

20

21-25

26-32

33-39

40-45

46-54

55-64

V95 10012.0088

V95 10012.0088

V95 10022.0088

V95 10022.0088

V95 10032.0088

V95 10042.0088

V95 10042.0088

M4×6

M4×8

M5×10

M5×12

M6×12

M8×16

M8×16

5505104006

5505104008

5505105010

5505105012

5505106012

5505108016

5505108016

M3×8

M3×8

M4×10

M4×10

M5×10

M5×10

M5×8

5505103008

5505103008

5505104010

5505104010

5505105010

5505105010

5505105008

L01 03990

L01 04000

L01 04010

L01 04020

L01 04150

L01 04160

N00 57211

N00 55581

N00 55581

N00 55581

N00 55701

N00 55701

8IP

S2560-8IP

S3070-8IP

S4085-15IP

S45100-20IP

S/M5×11,5-20IP

S/M5,5×14-20IP

D

20-22

23-29

30-36

37-45

46-54

55-64

S2542-8IP

M2,5×4,5-8IP

M2,5×4,5-8IP

M2,5×4,5-8IP

M3,5×5-10IP

M3,5×5-10IP

1,5 Nm

1,5 Nm

2,5 Nm

2,5 Nm

5,0 Nm

8,0 Nm

8,0 Nm

�

�

�

�

�

�

�

�

V95 10012.0089

V95 10012.0089

V95 10022.0089

V95 10022.0089

V95 10032.0089

V95 10042.0089

V95 10042.0089

V95 10310.008445

V95 10320.008445

V95 10320.008445

V95 10330.008445

V95 10330.008445

V95 10340.008445

V95 10340.008445

5

5

6

6

8

10

10

Ø

10IP

0,025

0,050

0,075

0,100

0,025

0,050

0,075

0,100

L01 04190

L01 04240

4

2

2

2

4

2

2

2

L05 00830

L05 00850

t(mm)

Spares / Accessories

Article Order No.

Adjusting screw �for centre

Article Order No.

Centre Order No.

Clamping screw �for centre

Article Order No. Article Order No.

Clamping screw �for inserts

Order No.

Clamping screw �for basic element

Order No.

Inserts ����� Basic element �����

Article Article

Guide pads �

Order No.

Clamping screw �for guide pads

Guide pads �����

Article Order No.

Centre �����

Clamping screwCentre

Inserts

Centre

Guide pads

Clamping screwfor guide pads

Clamping screw forbasic element

Basic element

Drill head

Clamping screwInserts

Adjusting screwCentre

Shimfor tuning ofguide pads

Torque

Screwdriver

ScrewdriverScrewdriver

The new KUB Centron®

Order No.Order No.HSS TiCN coated(for GG, GGG)

HSS TiN coated(for steel, aluminium

and non-ferrous metals)

HM TiCN/TiN coated

Article Order No. Order No. Qty.

Shim for tuning of guide pads

9

KUB

Cent

ron

®

� �

�

1

2

2.1

3

4

5

6

7

8

9

�

�

�

� �

�

Important: See page 12 for application details and safety notes !

for KUB Centron®

Technical Notesup to 9 × D

• Possible in principle• Reduce feed rate when starting bore

• Possible under certain conditions• Reduce feed rate if necessary• Face beforehand where centre is particularly large

• Surface for starting bore must be spot facedbeforehand

• Avoid chip jams on drill shank

• Surface for starting bore must be spot facedbeforehand

• Centered boring can be started with reduced feedrate

• Spot facing is required if the point for starting thebore is outside the radius centre

• Reduce feed rate when starting bore• Face beforehand if necessary

• Halve feed rate at interruption• Cross bore max. 1/3 of bore diameter• Off-centre cross bore not possible

• Possible under certain conditions• Reduce feed rate if necessary• Drilling angle max. 3°

• not possible• First bore Nos. � + �, then bore No. �,feed 50%

• Ensure division is symmetrical• Avoid chips jams• Offset max. 0.8×D

Starting on angled surfaces

Starting on uneven surfaces (castsurfaces)

Starting on cambered surfaces

Drilling through a cross bore

Drilling a chamber

Starting on an edge

Starting on a groove or large centeringbore

Starting on a welded seam

Angled bore exit

Drilling through stacked plates

10

3

1

2

Application examples

The new KUB Centron®

Workpiece: Housing for fuel pumpMaterial: GGG 60Machine: Mikron machining centreTool: KUB Centron®; Ø 20 mm, 6 × DInsert: W29 10010.0484 (2×)Centre: V95 10012.0088

Performance data:vc = 160 m/minf bore 1 = 0.18 mmf bore 2 = 0.08 mm

Parallelism of bores 0.03 mmIntermediate machining can be dispensed with.Tool life: 40 parts / cutting edge

Workpiece: ContainerMaterial: St52-2Machine: Heller machining centreTool: KUB Centron®; Ø 22 mm, 8 × DInsert: W29 10010.0484 (2×)Centre: V95 10012.0089

Workpiece: Drill flangeMaterial: 42CrMoV4Machine: Drilling millTool: KUB Centron®; Ø 45 mm, 8 × DInsert: W29 24010.0484 (2×)Centre: V95 10032.0089

Performance data:vc = 160 m/minf = 0.2 mmth/bore = 1.5 min

Saving of approx. 6.5 hours / part as machiningcan be carried out from one side.

✔ Machining possible from one side

✔ 3.5 × higher feed rate✔ No re-machining required

✔ Drilling with interrupted cut

Comparison of performance data:

KUB Centron® Competitor:vc = 180 m/min 25 m/minf = 0.12 mm 0.25 mmvf = 312 mm 90 mmBore Ø = 22.0 +0.05 22.0 ±0.2Surface = Ra 0.8 µm Ra 2.5 µm

Important: See page 12 for application details and safety notes !

11

KUB

Cent

ron

®6

5

4

Workpiece: Heat exchanger plateMaterial: X5CrNiMo1810 (V2A)Machine: Gantry boring millTool: KUB Centron®; Ø 24 mm, 6 × DInsert: W29 10130.0479 (2×)Centre: V95 10012.0089

Performance data:vc = 180 m/minf = 0.12 mm

Reduction in production time compared toconventional machining: approx. 70 hours/part!

Good chip control from perfectinsert geometry = production reliability!

✔ With torsion vibration damper• to reduce noise• increase tool life up to 50%

✔ Uniform insertinternal and external

✔ Time saving of morethan 50 %

✔ Concentricity andcylindrical formbetter than 0.03 mm

✔ 1.800 bores / part

Workpiece: Bearing ringMaterial: Heat treated steel 1200 N/mm²Machine: Waldrich, gantry milling machineTool: KUB Centron®; Ø 37 mm, 6 × DInsert: W29 24010.0484 (2×)Centre: V95 10032.0089

Comparison of performance data:

KUB Centron® Competitor:vc = 140 m/min 60 m/minf = 0.12 mm 0.16 mmvf = 144 mm 82 mmTool life: approx. approx.

80 bores 20 boresper insert per regrinding

Workpiece: Valve blockMaterial: 16Cr5Machine: Vertical CNC milling machineTool: KUB Centron®; Ø 42 mm, 8 × DInsert: W29 24030.0463 (2×)Centre: V95 10022.0089

Comparison of performance data:

KUB Centron® Competitor:vc = 220 m/min 140 m/minf = 0.14 mm 0.10 mmth/bore = 1 min. 10 secs. 2 min. 46 secs.

Geometry 13

Important: See page 12 for application details and safety notes !

12

1

� �� �� �� �� �� �� �� ��

�

�

��

��

��

��

�� �

�

2

max 0,1 mm

Assembly instructions

The new KUB Centron®

Insert the drill head with thespigot into the location hole.Ensure the head is rotatedagainst the drive flaps.Then apply the two clampingscrews lightly and tighten asrequired.

Assembling thedrill head

When assembling, check theclamping surface is correctlyaligned.Insert the central drill bit intothe location hole until there iscontact with the length settingscrew. This is adjusted at theworks. Apply the locking screw,using the specified torque.

Fitting thecentral drill bit

Fitting the insert Lengthadjustment

Check the insert seating isclean.Insert the insert into theseating and secure withlocking screw.Use TORX Plus® screwdriver.

In principle there is no need toadjust the length of the centraldrill bit. However,if an alternative length settingis required, this can beachieved by applying theadjusting screw.

Changing theguide pads

The guide pads can be changedif worn or damaged.When using new guide padscheck these are correctlyaligned.See Setting Guide Pads below.

Safety notes

• Important note: On exit of the drill a disc as shown isejected . With rotating components this can causeaccidents. Please arrange suitable guarding.

• The technical notes provided in the application detailsdepend on the environmental and application conditions(such as machine, environmental temperature, lubrication/coolant used and desired machining results): these arebased on proper application conditions, use andcompliance with the spindle speed limits given for thetools.

• To prevent damage to machine and tool, we recommendthat the drive power be calculated in advance (seeperformance calculation on page 11). The drive powerwhich is actually available will be found in the machinemanufacturer's spindle speed/performance diagram.

• Safety equipment should be provided to protect personnelfrom flying chips.

• To ensure the best possible tool life, the insert should bechanged promptly.

Setting the guide pads for through holes 8×D

Bore Ø

Coolant flow / Coolant pressure

� up to 22,9 mmØ� up to 37,0 mmØ� up to 69,9 mmØ� from 70,0 mmØ

minimumcoolant pressure

Water (litres/minutes)

Pres

sure

(bar

)

recommendedcoolant pressure

Acceptable width of flank wear marks on inserts:W29 10... to W29 18... VB max = 0,20 mmW29 24... to W29 34... VB max = 0,25 mmW29 42... to W29 58... VB max = 0,30 mm

The bore diameters for the drill heads are produced for an insert corner radius of R = 0.4 mm.The guide pads are not set when delivered and are a minimum of 0.25 mm below the borediameter.For through holes 8×D KOMET recommends the use of our shim sets to adjust the guide pads.

Procedure:• Loosen locking screw• Remove guide pad and reset with shims• Guide pad setting dimension (D1) is 0.15-0.20 mm below the bore diameter (see Bild 1).• Secure guide pads with locking screw

Shims:Set 1: for Ø 20-45 · Order No. L01 04190 Set 2: for Ø 46-64 · Order No. L01 04240consisting of: 4x t = 0,025 mm consisting of: 4x t = 0,025 mm

2x t = 0,050 mm 2x t = 0,050 mm2x t = 0,075 mm 2x t = 0,075 mm2x t = 0,100 mm 2x t = 0,100 mm

13

KUB

Cent

ron

®

St37-2 / 1.0037,

9SMn28 /1.0715,

St44-2 / 1.0044

St52-2 / 1.0050,

C55 / 1.0525,

16MnCr5 / 1.7131

9SMnPb28 / 1.0718

42CrMo4 / 1.7225,

CK60 / 1.1221

X6CrMo4 / 1.2341,

X165CrMoV12/1.2601

Inconel 718/2.4668,

Nimonic 80A/2.4631

TiAl5Sn2 / 3.7114

X2CrNi189 / 1.4306,

X5CrNiMo1810/

1.4401

X8CrNb17/1.4511,

X10CrNiMoTi1810/

1.4571

X20Cr13 / 1.4021,

X40Cr13 / 1.4034

GG-25/0.6025,

GG-35/0.6035

GG-NiCr202 / 0.6660

GGG-40 / 0.7040

GGG-50 / 0.7050

GGG-55 / 0.7055

GTW-55 / 0.8055

GGG-60 / 0.7060

GTS-65 / 0.8165

GGG-NiCr20-2 /

0.7661

GGV Ti < 0,2

GGV Ti > 0,2

CuZn36Pb3 / 2.1182,

G-CuPb15Sn /

2.1182

CuZn40Al1 / 2.0550,

E-Cu57 / 2.0060

AlMg1 / 3.3315,

AlMnCu / 3.0517

G-AlMg5 / 3.3561,

G-AlSi9Mg / 3.2373

G-AlSi10Mg / 3.2381

AF

NH

RS

1.0

�50

0

2.0

500-

900

2.1

<50

0

3.0

>90

0

4.0

>90

0

4.1

5.0

250

5.1

400

6.0

�60

0

6.1

<90

0

7.0

>90

0

8.0

180

8.1

250

9.0

130

�60

0

9.1

230

10.0

250

>60

0

10.1

200

10.2

300

12.0

90

12.1

100

13.0

60

13.1 75

14.0

100

15.0

1400

16.0

1800

1740

1250

2060

2450

1820

1860

2090

1370

2400

2530

2580

1140

1280

1080

1135

1050

1180

1050

780

780

650

780

830

2880

3300

DP =vc × f × D × kc

1000 × 60 × 4 × �

P =180 × 0,15 × 40 × 2450

1000 × 60 × 4 × 0,8= 13,8 kW

Ff � 0,7 ×D

2× f × kc

Ff � 0,7 ×40

2× 0,15 × 2450 = 5145 N

Important: See page 12 for application details and safety notes !

f = Feed in mm/rev.kc = Special cutting force in N/mm²D = Diameter in mmvc = Cutting speed in m/min� = Machine output 0.7 - 0.85 (0.8)

f = 0.15 mm/rev.kc = 2450 N/mm²D = 40 mm

The feed Ff required is approx.:

Note! The kc values depend on the feed and its upper limiting valuesare shown in the table. Due to this it is possible that the calculatedproduction performance is somewhat higher (� 10 - 20%) than theactual production required. This is intended, due to the fluctuatingefficiency as a safeguard against failure.

The machine power in kWfor the KUB Centron® drill:

Example:Material 42CrMo4Bore 40 mm diameterf = 0.15 mm/revkc = 2450 N/mm²D = 40 mmvc = 180 m/min� = 0.8

Performance CalculationM

ater

ial g

roup

Spec

ific

cutt

ing

forc

ek c

(N/m

m²)

Hard

ness

HB

Mat

eria

l

Mat

eria

l exa

mpl

em

ater

ial c

ode/

DIN

Stre

ngth

Rm

N/m

m2

non-alloy steels

non-alloy /

low alloy steels

lead alloys

non alloy / low alloy

steels: heat resostant

structural, heat treated,

nitride and tools steels

high alloy steels

high alloy steels

special alloys: Inconel,

Hastelloy, Nimonic,etc.

titanium,

titanium alloys

stainless steels

stainless steels

stainless /

fireproof steels

gray cast iron

alloy gray cast iron

spheroidal, graphite

cast iron, ferritic

spheroidal graphite

cast iron, ferritic/

perlitic

spheroidal graph. cast iron,

perlitic, malleable iron

alloyed spheroidal

graphite cast iron

vermicular cast iron

copper alloy, brass,

lead-alloy

bronze, lead bronze:

good cut

copper alloy, brass,

bronze:

average cut

wrought aluminium

alloys

cast alum. alloy:

Si-content <10%

magnesium alloy

cast alum.alloy:

Si-content >10%

hardened steels

< 45 HRC

hardened steels

> 45 HRC

Specific cutting force kcfor workpiece material

14

Fax to ++44-17 88-57 97 90

KOMET (UK) Ltd.

Unit 4 Triton ParkBrownsover RoadSwift ValleyRugby CV21 1SGTel. ++44-17 88-57 97 89Fax ++44-17 88-57 97 90sales@komet.co.ukwww.kometgroup.com

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KOMET-COMTOC®

CD-RomElectronictool catalogue

15

KUB

Cent

ron

®

15

Processoptimisation

Customer services(CAD/CAM...)

Comprehensiveprojects

Ready-to-usesystems

Pilot seriesproduction

Toollogistics

Productionconsultation

X3 Solutions

X3 Solutions is project management to

perfection, incorporating forward looking

services for our customers which are based on

quality, competence and the time factor. With

the unique symbiosis of development, technical

knowledge and experience and service

structure, the KOMET GROUP has an

interdisciplonary potential for finding solutions

which is used by well-known companies and

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Production solutionsin new dimensions

KOMET Precision ToolsGmbH & Co. KGZeppelinstraße 3D-74354 BesigheimTel.+49(0)7143.373-0Fax+49(0)7143.373-233info@komet.de

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