integi M2 User manual

M2 INSTRUCTION MANUAL

INTEGI, S.A.
Autonomia Kalea, 5 - 48250 Zaldibar, Bizkaia – España / [phone] - ✉[email protected] / www.integi.com
Page 1
M2 Instruction manual
1. TOOLS PARTS
2. FEASIBLE PATTERNS
The M2 form knurling tool is conceived for knurling on pieces with diameters between 8 and 200 mm.
The obtained pattern depends on the knurls used as shown below.
KNURLING
PROFILE
DESCRIPTION
KNURLING WHEEL
FEED
AXIS L
AXIS R
AXIAL FEED
RADIAL FEED
RAA
Right
AA Knurl
AA Knurl


RGE 30º
30º Cross-knurl
Diamond pattern male
BL30° Knurl
BL30° Knurl


RGE 45º
45° Cross-knurl
Diamond pattern male
BL45° Knurl
BL45° Knurl


Table 2
ITEM
CODE
REFERENCE
DESCRIPTION
ITEMS INCLUDED
SET.01
01990201
EM2-SET
Set with 6 HSS pins
P.01 (6x)
C.01
01900011
TAV M8-30
Screw DIN 7991 M8x30
C.01 + C.02
*C.02
-
TUER M8
Nut M8 DIN934
-
*P.01
-
EM2
HSS pins *
-
P.02
01982900
MM2
Shank M2
P.02+C.01+C.02
P.03
01993400
CM2
Knurl bearing reel
P.03 + C.01 + C.02
Drawing 1
*This item is not sold individually Table 1

INTEGI, S.A.
Autonomia Kalea, 5 - 48250 Zaldibar, Bizkaia – España / [phone] - ✉[email protected] / www.integi.com
Page 2
M2 Instruction manual
3. ASSEMBLING THE KNURLING WHEELS
First, loosen the C.01 screw and take out the reel. Place the knurls taking into account they need to be
paired (BL+BR) according to Drawing 2.
When you introduce the pins, the beveled side comes first. Once the knurling wheels are installed and the
pins inserted, the reel needs to be placed in the tool and the screw C.01 screwed, neither so tight the reel
gets blocked nor so loose the reel rolls too easily. It needs to be tight in a way it can easily be turned with
the hand.
4. CLAMPING AND SETTING THE TOOL TO THE MACHINE
First, we need to make sure that the knurl rotates freely around the pin.
Spread graphite grease if necessary.
Clamp the tool to the turret of the lathe.
While the chuck rotates very slowly, approach the tool to the workpiece until
the knurl makes contact with the workpiece.
Approach the knurl to the workpiece following the 'F' direction up until the
teeth plunge a little into it. Check out the resulted print. The printed width (h)
must be equal to the width of the teeth on the knurl. If the width isn´t correct,
change the clearance angle.
The tool and the workpiece need to be aligned as shown on the Drawing 2.
5. KNURLING ON STEPPED WORKPIECES
When knurling stepped workpieces, it is not possible to knurl up to a shoulder. Using this tool, no knurling
should be performed closer to 8 mm from the shoulder itself.
6. BEGINNING TO KNURL
While the chuck is rotating at the speed recommended at point 9, feed the
tool so that 1/3 of the width of the knurling wheel gets in contact with the
workpiece.
Press the wheels against the workpiece. The value of the radial feed must
be according to the conditions recommended on the table 4 (next page).
After that, you will be able to feed longitudinally.
To calculate up to what diameter we must deepen with the knurl, we must
take into account the height of the tooth (in the case of standard knurls is
always equal to half the step) and the increase in diameter that suffers the
material.
That information is available at www.integi.com and in our catalog.
Drawing 2
Drawing 3

INTEGI, S.A.
Autonomia Kalea, 5 - 48250 Zaldibar, Bizkaia – España / [phone] - ✉[email protected] / www.integi.com
Page 3
M2 Instruction manual
7. BEFORE AND DURING THE WORKING PROCESS
Make sure that the knurl pins are firmly fastened.
Check that the knurls run free and lubricate them with graphite grease.
Always apply plenty of coolant, lubricant or cutting oil flowing in order to sweep the swarf away.
The working direction, longitudinal advance, will always be against the tool.
8. TROUBLE SHOOTING
PROBLEM
CAUSE
SOLUTION
Double knurling
Too slow radial feed at the beginning
of the knurling
Increase radial feed at the beginning of the
knurling*
The perimeter of the workpiece is not
an exact multiple of the pitch
Turn a diameter that makes the perimeter
to be knurled is an exact multiple of the
pitch*
Knurling wheels
easily breakable
Knurling too deep
Reduce the depth to values according to
the pitch
Knurling wheels wear out
too fast
Knurling too deep
Reduce the depth to values according to
the pitch
Working conditions are not adequate
Check cutting speed and traverse feeding
speeds
Different knurling depth
Knurling wheels are not equally
plunged into the workpiece.
Center the tool in relation to the workpiece
Table 3
* Sometimes, it is not possible to increase radial feed or it just cannot be radially feed if the workpiece is too
weak.
9. RECOMMENDED SETTINGS
MATERIAL
Ø workpiece
(mm)
ØKNURL (mm)
Cutting
speed
(m/min)
RADIAL FEED (mm/rev)
TRAVERSE FEED (mm/rev)
FOR PITCHES (mm)
0.3÷0.6
0.6÷1.2
1.2÷1.6
1.6÷2.0
Steel 600
N/mm2
10÷50
20
25÷55
0.05÷0.10
0.20
0.15
0.13
0.10
50÷100
30÷60
0.25
0.20
0.15
0.13
100÷200
Steel 900
N/mm2
10÷50
20
20÷45
0.04÷0.08
0.15
0.10
0.08
0.06
50÷100
25÷50
0.20
0.15
0.10
0.08
100÷200
Stainlees
steel
10÷50
20
20÷45
0.04÷0.08
0.15
0.10
0.08
0.06
50÷100
25÷50
0.20
0.15
0.10
0.08
100÷200
Cast steel
10÷50
20
25÷45
0.05÷0.10
0.20
0.15
0.13
0.10
50÷100
30÷50
0.25
0.20
0.15
0.13
100÷200
Aluminium
10÷50
20
30÷50
0.05÷0.10
0.20
0.15
0.10
0.06
50÷100
35÷60
0.25
0.20
0.15
0.13
100÷200
Brass
10÷50
20
35÷55
0.05÷0.10
0.25
0.20
0.18
0.15
50÷100
40÷65
0.30
0.25
0.20
0.18
100÷200
Table 4

www.integi.com
www.integi.com
INTEGI, S.A.
Autonomía Kalea, 5 - 48250 Zaldibar Bizkaia - Spain
[phone] ✉integ[email protected]m www.integi.com