BA_ QUICK_LA-M-STR_EN_V20

INSTRUCTIONS FOR USE LA, MAMMUT & STR KNURLING TOOLS

Contents

CONTENTS 1. General .............................................................. 2 1.1 Introduction................................................ 2 1.2 Tool Construction....................................... 3 2. LA-Tool .............................................................. 5 2.1 Technical Data........................................... 5 2.2 Overview: Main Components..................... 6 2.3 Tool Adjustment LA/KF .............................. 7 2.4 Tool Adjustment LA/FL............................. 11 3. Mammut-Tool .................................................. 15 3.1 Technical Data......................................... 15 3.2 Overview: Main Components................... 16 3.3 Tool Adjustment M/KF.............................. 17 3.4 Tool Adjustment M/FL .............................. 21

5. Wear Parts .......................................................32 6. Knurling of Stepped Workpieces ..................32 7. Knurl Cutters with Bevel ................................34 8. Troubleshooting..............................................35 9. Dimensions and Pitches Available................37 10. Reference Values for Feeds and Cutting Speeds ...........................................................39

4. STR-Tool.......................................................... 25 4.1 Technical Data......................................... 25 4.2 Overview: Main Components................... 27 4.3 Tool Adjustment STR ............................... 28

1

General Introduction

1. General 1.1 Introduction Please read through the Instructions for Use carefully before using the QUICK knurl cutting tools!

The instructions have been written for operators with qualified training in the field of machining and cutting.

Compliance with the Instructions for Use  increases reliability in use,

Symbols in these instructions ATTENTION: This Symbol warns that operating procedures carried out without paying attention to the measures specified may lead to damage to the tool and/or the machine tool.

 increases the service life of the tools,

NOTE:

 and prevents downtimes.

This Symbol refers to further information and provides additional information for using the Quick knurling tools.

We reserve the right to make alterations to the technical details of the tools by comparison with the information and illustrations contained in these Instructions for Use.

Text markups:  This symbol identifies lists  This symbol identifies an action sequence

Swarovski Optik KG

2

General Tool Construction

1.2 Tool Construction QUICK knurl cutting tools are easy to operate and flexible in use due to their design, and may be employed on all lathes from conventional to CNCcontrolled automatic lathes, as a left-hand or righthand tool depending on the type of tool.

The tools have a cutting action, are free-cutting and it is not possible to make them adopt a specific speed ratio to the diameter of the workpiece by means of sustained forcing. As a result the number of teeth of the knurl produced may differ. The difference is approx. +/- 1-3 teeth depending on the pitch.

Type of knurl

DIN 82

Tool

Knurl cutters

Straight knurl

RAA

LA/FL, M/FL STR

30°L / 30°R

Spiral knurl

RBL / RBR

LA/FL, M/FL

As required

Cross knurl

similar to RKE

LA/KF, M/KF STR

15°L + 15°R

RGE

LA/KF, M/KF STR

2 x 90°

Diamond knurl

3

General Tool Construction

Tool definition LA-model range

Perfect results may be achieved with:

LA knurl cutting tools are available in both righthand and left-hand versions. Use only tools marked R (right-hand version) in holders for right-hand cutting tools and tools marked L (left-hand version) in holders for left-hand cutting tools.

 Correct adjustment

left

right

left

right

Tool definition Mammut-model range Knurl cutting tools of the Mammut range are only available in a right-hand version.

4

 Closely following the instructions regarding the start of the knurling process  Appropriate feed and cutting speed  Selection of the correct tool size. QUICK knurl cutter tools with large dimensioned knurl cutters, e.g. Ø 42 mm instead of Ø 32, have a longer service life NOTE: It is imperative to ensure an abundant supply of coolant or cutting oil directly onto the knurl cutters to ensure perfect cooling and lubrication of the knurl cutters.

LA-Tool Technical Data

2. LA-Tool 2.1 Technical Data 8/10/12

20 28

Cross and diamond Ø 1.5-12 mm 8x8, 10x10 or 12x12 mm / L or R Ø 8.9 mm 1 x 15°L and 1 x 15°R 2 x 90° see page 37 0.15 kg

83 105

Straight and spiral Ø 1.5-12 mm 8x8, 10x10 or 12x12 mm / L or R Ø 8.9 mm 1 x 30°L / 30°R

8/10/12

20

20

LA/FL Types of knurl Working range Shank dimension Knurl cutters Straight Spiral Pitches Weight

22

20

LA/KF Types of knurl Working range Shank dimension Knurl cutters Cross Diamond Pitches Weight

as required

see page 37 0.13 kg

88 108

(figure — right-hand tool)

5

LA-Tool Overview: Main Components

2.2 Overview: Main Components Pos. Designation 1

Tool head

1.1

Cutter holder

2

Screw

3

Washer

4

Knurl cutter

5

Bushing

6

Scale ring (diameter adjustment)

7

Index point

8

Clamping screw

9

Shank

10

Adjusting screw — tool correction

LA/KF 2

3

5 1.1

4

1

A

A 10

9

6

7

8

LA/FL 2

3

4

5

1.1

1

A

A 9

10

1 1.1

(figure — right-hand tool)

6

LA-Tool Tool Adjustment LA/KF

2.3 Tool Adjustment LA/KF Preliminary work:

Step 2: Install knurl cutters

 Clamp workpiece and turn Maximum out-of-roundness 0.03 mm

 Clean the contact surface of bushing 5 and cutter holder 1.1.

Step 1: Cutter selection

 Coat bushing 5 and the face ends as well as the hole of knurl cutter 4 with a little Molykote G paste

Cross knurl:  1x 15° left-hand spiral toothed knurl cutter on cutter holder „L“  1x 15° right-hand spiral toothed knurl cutter on cutter holder „R“

 With knurl cutter 4 and washer 3 pushed on, insert bushing 5 into the cutter holder  Screw in screw 2 and only tighten enough to allow knurl cutter 4 to rotate free of play 2

Diamond knurl:

3

4

5

1.1

 2x 90° toothed knurl cutters L

LA/KF R R

7

LA-Tool Tool Adjustment LA/KF

Step 4: Clamp tool in tool holder

Step 3: Set diameter  Measure off workpiece diameter  Unscrew clamping screw 8

Step 5: Pre-adjust turning centre

 Turn scale ring 6 until the required diameter aligns with index point 7

The tool must be centered when used on conventional lathes.

 Clamp clamping screw 8 6

7

8

NOTE: This adjustment does not apply when used on CNC machines as the tools are already centered.

8

LA-Tool Tool Adjustment LA/KF

Step 6: Re-align turning centre  Carefully bring into contact with the workpiece  Both cutters must be in contact simultaneously.

Precision adjustment is carried out using adjusting screw 10  When adjusting by way of screw 10a, first loosen screw 10b and vice versa  Tighten the opposing screw again hand-tight when adjustment is complete 10a

Sequence:  Unscrew clamping screw 8  Adjust scale ring 6 slightly towards the next smaller diameter until the correct cutter setting is reached  Tighten clamping screw 8 6

8

10b

Step 7: Adjust cutter The ideal position of the knurling cutters is when they lie parallel on the workpiece and still cut very slightly, i.e. the cutting edge of the cutters can be pressed in somewhat deeper (approx. 1-2°). In the case of materials which are hard to machine, the knurling cutters may be inclined up to max. 3-4°.

9

LA-Tool Tool Adjustment LA/KF

Step 8: Start of knurl The start of the knurl should be in a width no greater than 1,0 mm. With this width now move the tool to the full depth without interruption. The feed on infeeding should be approx. 0.05-0.1 mm.

The knurling depth corresponds to the pitch of the knurling cutter being used, e.g. 1.0 mm pitch requires 1.0 mm infeed with reference to the diameter. The depth is measured from the knurling cutter's point of contact with the workpiece.

After an idle time of 2-3 seconds, the workpiece is knurled by using the longitudinal feed. The surface deformation of the workpiece cannot be determined exactly as this is different from material to material.

The knurling depth, however, should be sufficient to ensure that the knurl is only just sharp. max 1,0 mm

ATTENTION: Under no circumstances knurl with longitudinal feed into the face edge of the workpiece. Starting the knurl within the workpiece can be done only in certain circumstances.

NOTE: Note that the protective bevel at the beginning of the workpiece may not be applied until knurling is complete.

The coarser the pitch, the smaller the feed. Feed and cutting speed have no effect on the knurl pitch.

Step 9: Knurling NOTE: If the knurl is not accurate or is onesided, then the knurling process may be repeated after correcting the tool.

10

LA-Tool Tool Adjustment LA/FL

2.4 Tool Adjustment LA/FL Preliminary:

Step 2: Install knurl cutters

 Clamp workpiece and turn Maximum out-of-roundness 0.03 mm

 Clean the contact surface of bushing 5 and cutter holder 1.1.

Step 1: Cutter selection

 Coat bushing 5 and the face ends as well as the hole of knurl cutter 4 with a little Molykote G paste

Straight knurl – right-hand tool:  1x 30° right-hand spiral toothed knurl cutter Straight knurl - left-hand tool:  1x 30° left-hand spiral toothed knurl cutter NOTE: Right-hand tool requires the workpiece to rotate in a clockwise direction.

Left-hand tool requires the workpiece to rotate in an anti-clockwise direction.

 With knurl cutter 4 and washer 3 pushed on, insert bushing 5 into the cutter holder  Screw in screw 2 and only tighten enough to allow knurl cutter 4 to rotate free of play 2

3

4

5

1.1

Spiral knurl: Knurl cutters are to be mounted with 15°, 30° or 90° spirals depending on the pitch of the spiral desired on the workpiece. It is advisable due to the large number of possible variations to consult your dealer or the manufacturer.

11

LA-Tool Tool Adjustment LA/FL

Step 3: Clamp tool in tool holder Step 4: Adjust turning centre The tool must be centered when used on conventional lathes.

NOTE: This adjustment does not apply when used on CNC machines as the tools are already centered.

12

Step 5: Adjust cutter The ideal position of the knurling cutters is when they lie parallel on the workpiece and still cut very slightly, i.e. the cutting edge of the cutters can be pressed in somewhat deeper (approx. 1-2°). In the case of materials which are hard to machine, the knurling cutters may be inclined up to max. 3-4°.

Sequence:  Correction is achieved by turning the tool slightly in the tool holder

LA-Tool Tool Adjustment LA/FL

Step 6: Start of knurl The start of the knurl should be in a width no greater than 1,0 mm. With this width now move the tool to the full depth without interruption. The feed on infeeding should be approx. 0.05-0.1 mm.

The knurling depth corresponds to the pitch of the knurling cutter being used, e.g. 1.0 mm pitch requires 1.0 mm infeed with reference to the diameter. The depth is measured from the knurling cutter's point of contact with the workpiece.

After an idle time of 2-3 seconds, the workpiece is knurled by using the longitudinal feed. The surface deformation of the workpiece cannot be determined exactly as this is different from material to material.

The knurling depth, however, should be sufficient to ensure that the knurl is only just sharp.

ATTENTION: Under no circumstances knurl with longitudinal feed into the face edge of the workpiece. Starting the knurl within the workpiece can be done only in certain circumstances.

NOTE: Note that the protective bevel at the beginning of the workpiece may not be applied until knurling is complete.

The coarser the pitch, the smaller the feed. Feed and cutting speed have no effect on the knurl pitch.

max 1,0 mm

13

LA-Tool Tool Adjustment LA/FL

Step 7: Knurling If the track generated does not run paraxially, this may be put right by correcting the two adjusting screws 10. ď‚„ When adjusting by way of screw 10a, first loosen screw 10b and vice versa ď‚„ Tighten the opposing screw again hand-tight when adjustment is complete

10a

10b

Note: If the knurl is not accurate or is onesided, then the knurling process may be repeated after correcting the tool.

14

Mammut-Tool Technical Data

3. Mammut-Tool 3.1 Technical Data

as required

see page 37 1.6 kg

40 (60)

79 (117)

45 (68) 27 104 55

120

35

Straight and spiral Ø 20-3000 mm 35x27 mm Ø 42 mm 1 x 30°R

280 (445)

110 (165)

Cross and diamond Ø 20-1000 mm (30-3000 mm) 45x40 mm (90x60 mm) Ø 32 mm (42 mm) 1 x 15°L and 1 x 15°R 2 x 90° see page 37 6 kg (18 kg)

57

M/FL Types of knurl Working range Shank dimension Knurl cutters Straight Spiral Pitches Weight

160 (275)

(Dimensions in brackets MII/KF)

71

MI-MII/KF Types of knurl Working range Shank dimension Knurl cutters Cross Diamond Pitches Weight

150 195

15

Mammut-Tool Overview: Main Components

3.2 Overview: Main Components Pos. Designation Screw Washer

4

Knurl cutter

5

Bushing

6

Scale ring (diameter adjustment)

7

Index point

8

Clamping screws

9

Shank

10

Adjusting screw — tool correction

11

Locking screw / Clamping screw (M/FL)

12

Hexagonal nut

2

3

4

5

1

9

11 10 11 7

8

A

A

8

M/FL 2

3

4

5

1

9

10

A

12

16

6

80

2 3

M/KF

20 0

Tool head

120

1

11

A

10

1

Mammut-Tool Tool Adjustment M/KF

3.3 Tool Adjustment M/KF Preliminary work:

Step 2: Install knurl cutters

 Clamp workpiece and turn Maximum out-of-roundness: 0.05 mm

 Clean the contact surface of bushing 5 and cutter holder 1.1.

Step 1: Cutter selection

 Coat bushing 5 and the face ends as well as the hole of knurl cutter 4 with a little Molykote G paste

Cross knurl:  1x 15° left-hand spiral toothed knurl cutter on the cutter holder closest to scale ring 6  1x 15° right-hand spiral toothed knurl cutter on the opposing cutter holder Diamond knurl:  2x 90° toothed knurl cutters

 With knurl cutter 4 and washer 3 pushed on, insert bushing 5 into the cutter holder  Screw in screw 2 and only tighten enough to allow knurl cutter 4 to rotate free of play 2

3

4

5

1.1

6

17

Mammut-Tool Tool Adjustment M/KF

Step 3: Set diameter

Step 4: Clamp tool in tool holder

 Measure off workpiece diameter  Unscrew clamping screw 8

Step 5: Pre-adjust turning centre

 Turn scale ring 6 until the required diameter aligns with index point 7

 Clamp tool in carriage so that holder shank is perpendicular to rotary axis

 Clamp clamping screw 8

 Align centering device C at tip height on the swivel axis

6 7 80

0

8

18

0 20

120

8

80

120

20

C

Mammut-Tool Tool Adjustment M/KF

Step 6: Re-align turning centre  Carefully bring into contact with the workpiece  Both cutters must be in contact simultaneously.

Unscrew locking screws 11 and carry out realignment using adjustment screw 10  Once the adjustment has been made, tighten locking screws 11 and screw down hand-tight

11

0 20

120

10

80

11

the knurling cutters may be inclined up to max. 3-4°.

Sequence:  Unscrew clamping screw 8  Adjust scale ring 6 slightly towards the next smaller diameter until the correct cutter setting is reached  Tighten clamping screw 8

The ideal position of the knurling cutters is when they lie parallel on the workpiece and still cut very slightly, i.e. the cutting edge of the cutters can be pressed in somewhat deeper (approx. 1-2°).

In the case of materials which are hard to machine,

0 20

120

Step 7: Adjust cutter

80

6

8 8

19

Mammut-Tool Tool Adjustment M/KF

Step 8: Start of knurl The start of the knurl should be in a width no greater than 3.0 mm. With this width now move the tool to the full depth without interruption. The feed on infeeding should be approx. 0.05-0.1 mm.

The knurling depth corresponds to the pitch of the knurling cutter being used, e.g. 1.0 mm pitch requires 1.0 mm infeed with reference to the diameter. The depth is measured from the knurling cutter's point of contact with the workpiece.

After an idle time of 2-3 seconds, the workpiece is knurled by using the longitudinal feed. The surface deformation of the workpiece cannot be determined exactly as this is different from material to material.

The knurling depth, however, should be sufficient to ensure that the knurl is only just sharp. max 3,0 mm

ATTENTION: Under no circumstances knurl with longitudinal feed into the face edge of the workpiece. Starting the knurl within the workpiece can be done only in certain circumstances.

NOTE: Note that the protective bevel at the beginning of the workpiece may not be applied until knurling is complete.

The coarser the pitch, the smaller the feed. Feed and cutting speed have no effect on the knurl pitch.

Step 9: Knurling NOTE: If the knurl is not accurate or is onesided, then the knurling process may be repeated after correcting the tool.

20

Mammut-Tool Tool Adjustment M/FL

3.4 Tool Adjustment M/FL Preliminary work:

Step 2: Install knurl cutters

 Clamp workpiece and turn Maximum out-of-roundness 0.03 mm

 Clean the contact surface of bushing 5 and cutter holder 1.1.

Step 1: Cutter selection

 Coat bushing 5 and the face ends as well as the hole of knurl cutter 4 with a little Molykote G paste

Straight knurl – right-hand tool:  1x 30° right-hand spiral toothed knurl cutter NOTE: Right-hand tool requires the workpiece to rotate in a clockwise direction.

 With knurl cutter 4 and washer 3 pushed on, insert bushing 5 into the cutter holder  Screw in screw 2 and only tighten enough to allow knurl cutter 4 to rotate free of play 2

3

4

5

1.1

Spiral knurl: Knurl cutters are to be mounted with 15°, 30° or 90° spirals depending on the pitch of the spiral desired on the workpiece. It is advisable due to the large number of possible variations to consult your dealer or the manufacturer.

21

Mammut-Tool Tool Adjustment M/FL

Step 3: Clamp tool in tool holder Step 4: Adjust turning centre  Clamp tool in carriage so that holder shank is perpendicular to rotary axis  Align centering device C at tip height on the swivel axis

Step 5: Adjust cutter The ideal position of the knurling cutters is when they lie parallel on the workpiece and still cut very slightly, i.e. the cutting edge of the cutters can be pressed in somewhat deeper (approx. 1-2°). In the case of materials which are hard to machine, the knurling cutters may be inclined up to max. 3-4°.

C

Sequence:  Correction is achieved by turning the tool slightly in the tool holder

22

Mammut-Tool Tool Adjustment M/FL

Step 6: Start of knurl The start of the knurl should be in a width no greater than 3.0 mm. With this width now move the tool to the full depth without interruption. The feed on infeeding should be approx. 0.05-0.1 mm.

The knurling depth corresponds to the pitch of the knurling cutter being used, e.g. 1.0 mm pitch requires 1.0 mm infeed with reference to the diameter. The depth is measured from the knurling cutter's point of contact with the workpiece.

After an idle time of 2-3 seconds, the workpiece is knurled by using the longitudinal feed. The surface deformation of the workpiece cannot be determined exactly as this is different from material to material.

The knurling depth, however, should be sufficient to ensure that the knurl is only just sharp.

ATTENTION: Under no circumstances knurl with longitudinal feed into the face edge of the workpiece. Starting the knurl within the workpiece can be done only in certain circumstances.

NOTE: Note that the protective bevel at the beginning of the workpiece may not be applied until knurling is complete.

The coarser the pitch, the smaller the feed. Feed and cutting speed have no effect on the knurl pitch.

max 3,0 mm

23

Mammut-Tool Tool Adjustment M/FL

Step 7: Knurling If the track generated does not run paraxially, this may be put right by correcting the two adjusting screws 10.  Unscrew hexagonal nut 12  Unscrew clamping screw 11 and subsequently tighten lightly again to achieve a tolerance-free adjustment  When adjusting by way of screw 10a, first loosen screw 10b and vice versa  Tighten the opposing screw again hand-tight when adjustment is complete  Tighten clamping screw 11 and hexagonal nut 12 12 10a 11 10b

24

NOTE: If the knurl is not accurate or is onesided, then the knurling process may be repeated after correcting the tool.

STR-Tool Technical Data

4. STR-Tool 4.1 Technical Data A

(Dimensions in brackets STR/B)

E D

Cross, diamond and straight Ø 2.8 (core Ø)-25 mm (Ø 5-55 mm) see page 26 Ø 14.5 mm (21.5 mm) 2 x 15°R and 1 x 15°L 3 x 90° 2 x 30°L and 1 x 30°R see page 37 0.5 kg (2.0 kg) 20 mm (35 mm)

B

STR/A-STR/B Types of knurl Working range Shank diameter Knurl cutters Cross Diamond Straight Pitches Weight Bore of knurling head (A) Bore length (B) Knurling head Ø (C) Length of knurling head (D) Length of cutter holder (E)

25.5 mm (37 mm) 54 mm (95 mm) 37 mm (52 mm) 15 mm (30 mm)

C

25

STR-Tool Technical Data

Clamping length (G) 50 mm 50 mm 50 mm 50 mm 50 mm 50 mm 69 mm

Bore Ø (H) 9 mm 10 mm 15 mm 9 mm 9 mm 15 mm 8,5 mm

Shanks STR/B Clamping Ø (F) 20 mm 25 mm 30 mm 1“ 1 ¼“ 1 ½“ MK3

Clamping length (G) 70 mm 70 mm 70 mm 70 mm 70 mm 70 mm 86 mm

Bore Ø (H) 10 mm 15 mm 18 mm 15 mm 18 mm 25 mm 10 mm

26

G

Shanks STR/A Clamping Ø (F) 15 mm 20 mm 25 mm ¾“ ⅝“ 1“ MK2

H

F

STR-Tool Overview: Main Components

4.2 Overview: Main Components Pos. Designation 1

Tool head

2 3

Countersunk screw Washer

4

Knurl cutter

5

Bushing

6

Cutter holder „0“

7

Cutter holder „1“

8

Clamping segment

9

Clamping screw

10

Set spindle

11

Set spindle for opposite spindle

12

Shank

13

Cheese-head screw — to mount shank

6

2

3

4

1

11

8

10

12

5

13

7

9

6

27

STR-Tool Tool Adjustment STR

4.3 Tool Adjustment STR Preliminary work:

Step 1: Install shank

 Clamp workpiece and turn Maximum out-of-roundness 0.03 mm

 Attach shank 12 to tool head 1 using three hexagonal socket head screws 13

 Turn a shoulder or, with smaller pitches up to 0.6 mm, a 30° bevel

13

1

ø-0,5xT

30°

12

1,5xT

1,5xT

T = pitch NOTE: This chamfering means that the knurl cutters only have to remove a small amount of material at the beginning and can therefore centre themselves better.

The shoulder is particularly important for flat knurls.

28

13

STR-Tool Tool Adjustment STR

Step 2: Cutter selection

Step 3: Install knurl cutters

Straight knurl:

 Clean the contact surface of bushing 5 and cutter holder 1.1.

 2x 30°L knurl cutter on cutter holder„0“

 Coat bushing 5 and the face ends as well as the hole of knurl cutter 4 with a little Molykote G paste

 1x 30°R knurl cutter on cutter holder„1“ Cross knurl:  2x 15°R knurl cutter on cutter holder„0“  1x 15°L knurl cutter on cutter holder„1“ Diamond knurl:

 With knurl cutter 4 and washer 3 pushed on, insert bushing 5 into the cutter holder  Screw in countersunk screw 2 and only tighten enough to allow knurl cutter 4 to rotate free of play

 2x 90° knurl cutter on cutter holder„0“  1x 90° knurl cutter on cutter holder„1“

1.1 2

3

4

5

0

0

1

Step 4: Clamp tool in tool holder

29

STR-Tool Tool Adjustment STR

Step 5: Set diameter Version with infeed  Unscrew six clamping screws 9 on the clamping jaws  Open cutter holder 6 by means of positioning spindles 10 and cutter holder 7 via central positioning spindle 11 enough for the tool to be positioned above the workpiece  Position the tool above the workpiece and lightly tighten clamping screws 9  Adjust positioning spindles 10/11 individually until the knurl cutters just touch the workpiece lightly 4

6

10

7

30

9

11

6

10

 Retract the knurl cutting tool for subsequent infeed  The infeed depth is adjusted in the direction of the arrow using the indexing on positioning spindles 10/11 The number of index pitches to be adjusted is calculated as follows: Cutter pitch (T)/2 x 7, results in an adjustment by 3.5 index pitches for a cutter pitch of 1 mm for example  Adjust the cutter holders individually by the value calculated and then screw down clamping screws 9 hand-tight 10

9

11

10

STR-Tool Tool Adjustment STR

Version - Adjustment to core diameter  Turn workpiece to knurl core diameter DK  Unscrew six clamping screws 9 on the clamping jaws  Open cutter holder 6 by means of positioning spindles 10 and cutter holder 7 via central positioning spindle 11 enough for the tool to be positioned above the workpiece  Position tool above shoulder and lightly tighten clamping screws 9 6

10

9

11

10

 Retract knurl milling tool  Screw down clamping screws 9 hand-tight

Step 6: Start of knurl  Feed in quickly to the shoulder and only very little into the full material using a feed rate of 0.10.15 mm/rev  After an idle time of 2-3 seconds, the workpiece is knurled by using the longitudinal feed

DK

4

 Adjust positioning spindles 10/11 individually until the knurl cutters just touch the workpiece lightly on core diameter DK

 After completing the knurl, retract the tool in rapid traverse

7

6

The coarser the pitch, the smaller the feed. Feed and cutting speed have no effect on the knurl pitch.

31

Wear Parts Tool Adjustment STR

5. Wear Parts

6. Knurling of Stepped Workpieces

The fixing elements for the knurl cutters of the QUICK knurl cutting tools are wear parts and must be replaced frequently.

It must be noted that with all QUICK knurl cutting tools it is not possible to knurl right up to a shoulder due to the inclined position of the knurl cutters.

Please refer to the table for dimensions.

1a

1b

1c

2a

2a

2b

3

3

3

a

b

Pos. 1a 1b 1c 2a 2b 3

32

Designation

Typ

Slot screw Cheese-head screw Countersunk screw Washer Washer Bushing

LA M/KF, M/FL STR LA, M/KF, M/FL STR

Knurling of Stepped Workpieces

Distance b corresponds to the Ø of the knurl cutters Ø 8.9

Ø 14.5

Ø 21.5

Ø 32

Ø 42

b 1.0 2.5 3.0

b 1.3 1.8 2.2

b 2 2.6 3.0

b 1.5 2.5 3.1

b 1.8 3.0 4.3

4

2.6

3.8

3.8

5.7

5

2.8

4.5

4.5

6.7

6

3.1

4.7

5.1

7.5

7

5

6.2

8.1

8

5.3

7.6

8.6

9

5.3

a 1 2 3

9.4

9.1

10

9.8

9.5

11

10.4

9.8

12

10.6

10.1

13

10.8

12.2

14

11.1

13.1

15

13.6

16

14.1

18

14.6

33

Knurl Cutters with Bevel

7. Knurl Cutters with Bevel A knurl cutter's teeth may break off when knurling "hard" materials.

Arrangement for KF- tools

It is possible to increase the knurl cutter's service life by cutting a 45° bevel. This is only applicable for the KF and STR models. The drawing beside shows which knurl cutter may have bevel. Ø 32 mm and Ø 42 mm cutters are already produced with bevel.

0,5 x t 45°

34

t

Arrangement for STR- tools

Troubleshooting

8. Troubleshooting KF-Tools

FL-Tools

Knurl trailing spirally

Knurl trailing spirally

   

 Correct position of head using precision adjustment screws  Look at start of knurl  Look at knurling depth  Tool tilted sideways -> check position  Clearance of tool too positive or too negative

Look at start of knurl Look at knurling depth Tool tilted sideways -> check position Clearance of tool too positive or too negative

Overlapping of the knurl (double knurl)  Incorrect adjustment of diameter  Approach to knurl depth too slow as a result of which too little guidance of knurl cutters in track  Look at start of knurl

Teeth of knurl cutters knocked off

Overlapping of the knurl (double knurl)  Approach to knurl depth too slow as a result of which too little guidance of knurl cutters in track  Look at start of knurl

 Bevel knurl cutters with hard materials  Knurl cutter has been overloaded too much feed, cutting depth too great  Incorrect adjustment of diameter  Fixing screws of knurl cutters loose  Look at adjustment of cutters

Teeth of knurl cutters knocked off

Unevenly deep knurl track

Seizing of knurl cutters on bushing

 Re-align position of head using spindle

Seizing of knurl cutters on bushing (see FL)

 Knurl cutter has been overloaded feed too great, cutting depth too great  Fixing screws of knurl cutters loose  Look at direction of rotation  Look at adjustment of cutters  Reduce cutting speed  Use Molykote paste  Coolant jet directly onto the knurl cutter

35

Troubleshooting

STR-Tools Knurl does not come up to the requirements

Seizing of knurl cutters on bushing

 Are the knurl cutters on the right holder?  Tool head and workpiece axis are not aligned  All three knurl cutters do not have the same cutting depth

 Reduce cutting speed  Use Molykote paste  Coolant jet directly onto the knurl cutter

Knurl trailing spirally  Look at start of knurl (turn a centering stepp)  Look at knurling depth  Tool tilted sideways -> check position

Overlapping of the knurl (double knurl)  Approach to knurl depth too slow as a result of which too little guidance of knurl cutters in track  Look at start of knurl  Incorrect adjustment of diameter

Teeth of knurl cutters knocked off  Bevel knurl cutters with hard materials  Knurl cutter has been overloaded too much feed, cutting depth too great  Fixing screws of knurl cutters loose  Incorrect adjustment of diameter

36

Dimensions and Pitches Available

9. Dimensions and Pitches Available Technical Description Material: Powder metallurgy tool steel

Ø

Heat treatment: Hardened to HRC 62-64 Models: Ground or ground + coated with Q-Dur

Tooth pitch angle

21.5 90° toothed 15°L/15°R toothed

Dimensions and pitches

30°L/30°R toothed 90°

t

Pitches (t) 0.4/0.5/0.6/0.8/1.0/ 1.2/1.5/1.6/2.0 0.4/0.5/0.6/0.8/1.0/ 1.2/1.5/1.6/2.0 0.4/0.5/0.6/0.8/1.0/ 1.2/1.5/1.6/2.0

90° toothed

1.0/1.5/2.0/2.5/3.0

15°L/15°R toothed

1.0/1.5/2.0/2.5/3.0

90° toothed

1.0/1.5/2.0/2.5/3.0/4.0

Pitches (t)

15°L/15°R toothed

1.0/1.5/2.0/2.5/3.0/4.0

90° toothed

0.3/0.4/0.5/0.6/0.8/1.0

30°R toothed

1.0/1.5/2.0/2.5/3.0/4.0

15°L/15°R toothed

0.3/0.4/0.5/0.6/0.8/1.0

30°L/30°R toothed

0.3/0.4/0.5/0.6/0.8/1.0

14.5 90° toothed 15°L/15°R toothed 30°L/30°R toothed

0.4/0.5/0.6/0.8/1.0/1.2 0.4/0.5/0.6/0.8/1.0/1.2 0.4/0.5/0.6/0.8/1.0/1.2

90°

30°

15°

32

42 Ø 8.9

Tooth pitch angle

37

Dimensions and Pitches Available

Order numbers and designation Ident. no.

270 271

ØA 8.9 14.5

ØB 4 5

C 2.5 3.0

272

21.5

8

5.0

273

32

14

8.0

274

42

18

12.0 Pos. Description 1 2 3 4 5 6 7 8

38

Production date MM/YY Tooth pitch angle Tooth pitch direction R (right) L (left) Tooth pitch Material Tooth tip angle Production process G (ground) / M (milled) Coated with QDUR / TiCN / TIN

Reference Values for Feeds and Cutting Speeds

10. Reference Values for Feeds and Cutting Speeds Workpiece Material

Cutter Ø

Ø 1.5-12 V s m/min mm/rev

Workpiece Ø 12-40 V m/min

s mm/rev

Workpiece Ø 40-250 V s m/min mm/rev

Workpiece Ø over 250 V s m/min mm/rev

Steel up to

8.9

35

0.05-0.08

600 N/mm²

14.5

45

0.07-0.09

40

0.07-0.09

21.5

60

0.07-0.14

60

0.07-0.15

55

0.07-0.15

90

0.10-0.20

85

0.10-0.20

80

0.10-0.20

100

0.10-0.30

95

0.10-0.20

60

0.08-0.16

32 42

Steel up to

8.9

25

0.04-0.07

900 N/mm²

14.5

35

0.06-0.08

30

0.06-0.08

21.5

50

0.06-0.12

45

0.06-0.12

40

0.06-0.12

70

0.08-0.16

65

0.08-0.16

80

0.09-0.25

32 42

Stainless steels

8.9

22

0.04-0.06

14.5

30

0.06-0.08

28

0.06-0.08

21.5

40

0.06-0.12

35

0.06-0.12

32

0.06-0.12

45

0.08-0.16

42

0.08-0.16

40

0.08-0.16

55

0.09-0.25

50

0.09-0.25

32 42

39

Reference Values for Feeds and Cutting Speeds

Workpiece Material

Cutter Ø

Ms58

8.9

Ø 1.5-12 V s m/min mm/rev

Workpiece Ø 12-40 V m/min

s mm/rev

Workpiece Ø over 250 V s m/min mm/rev

0.06-0.10

14.5

70

0.08-0.12

60

0.08-0.12

21.5

100

0.08-0.20

100

0.08-0.20

90

0.08-0.20

140

0.10-0.30

130

0.10-0.30

115

0.10-0.30

160

0.10-0.30

140

0.10-0.30

42 8.9

50

0.05-0.09

14.5

60

0.06-0.10

60

0.06-0.10

21.5

90

0.07-0.15

90

0.07-0.15

80

0.07-0.15

125

0.10-0.20

120

0.10-0.20

105

0.10-0.20

140

0.10-0.30

120

0.10-0.30

32 42

40

Ø 40-250 V s m/min mm/rev

60

32 Ms60

Workpiece

Reference Values for Feeds and Cutting Speeds

Workpiece Material Bronze

Cutter Ø 8.9

Ø 1.5-12 V s m/min mm/rev

Workpiece Ø 12-40 V s m/min mm/rev

Workpiece Ø over 250 V s m/min mm/rev

0.05-0.08

14.5

45

0.07-0.09

40

0.07-0.09

21.5

60

0.07-0.14

60

0.07-0.14

55

0.07-0.14

90

0.10-0.20

85

0.10-0.20

80

0.10-0.20

100

0.10-0.30

95

0.10-0.30

42 8.9

70

0.06-0.13

14.5

80

0.08-0.18

70

0.08-0.18

21.5

120

0.10-0.25

110

0.10-0.25

100

0.10-0.25

150

0.10-0.35

135

0.10-0.35

125

0.10-0.35

160

0.10-0.50

150

0.10-0.50

32 42

Grey cast iron

Ø 40-250 V s m/min mm/rev

35

32 Aluminium

Workpiece

8.9

22

0.04-0.06

14.5

30

0.06-0.08

28

0.06-0.08

21.5

40

0.06-0.12

35

0.06-0.12

32

0.06-0.12

45

0.08-0.16

42

0.08-0.16

40

0.08-0.16

55

0.09-0.25

50

0.09-0.25

32 42

41

Reference Values for Feeds and Cutting Speeds

Workpiece Material Cast steel

Cutter Ø 8.9

Ø 1.5-12 V s m/min mm/rev

Workpiece Ø 12-40 V s m/min mm/rev

Ø 40-250 V s m/min mm/rev

Workpiece Ø over 250 V s m/min mm/rev

25

0.04-0.06

14.5

35

0.06-0.08

30

0.06-0.12

21.5

50

0.06-0.12

45

0.06-0.12

40

0.06-0.12

90

0.08-0.16

65

0.08-0.16

60

0.08-0.16

80

0.09-0.25

75

0.09-0.25

32 42

NOTE: Generally speaking the values applicable to aluminium are also valid for plastics. Test runs are imperative.

42

Workpiece

Notes

Notes

EN 04/2011 We reserve the right to make changes regarding design and delivery. We accept no liability for printing errors.

SWAROVSKI OPTIK VERTRIEBS GmbH, 6067 Absam, Austria Tel. +43/5223/511- 0, Fax +43/5223/511-6550 info@quick-tools.at, www.quick-tools.at BA-669-31-EN