CUTTING TOOLS

Chipless fluteless tap
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1
CUTTING TOOLS
Advantages chipless tapping:
• Consistent accuracy of the thread produced. Prevents too
large or too small cutting. All threads are absolutely within the
tolerances over their whole length.
• Higher loading capacity of the thread produced, especially in
thin sheet metals and materials with low tensile strength,
because the material’s grain flow is not cut through.
• Only one fluteless tap is required for through and blind hole
thread.
• Cost cutting due to long tool life of the fluteless tap (no blunting)
and due to shorter cycle time when using higher speed
(whereby the materials generally flow better).
Requirements for the use of fluteless taps:
• Materials with good workability.
This includes almost all non-ferrous metals and aluminium
alloys, including those which are short-chipping with 1 to 3 %
elongation at break only.
AlSi alloys up to max. 12% Si. Very many grades of steel can be
formed, even quenched and tempered steels with 900 N/mm 2 .
However, the application limits can only be determined by way
of practical trials.
• Lubrication
Good anti-friction properties are particularly important for the
thread format. Lubricative, graphite containing cooling lubricant
or oils should be used for fluteless taps/formers, or a suitable
additive added to the existing lubricant. TiN-coated fluteless taps
produce very good results in various materials with emulsion too.
• Larger drilled hole diameter than the tap drill size of a thread
made using cutting methods. The root of the thread formed
may not be fully formed. However, the degree of thread
engagement is 70 to 75 %.
13 077 Fluteless tap
Application: Materials with good workability up to approx. 1000 N/mm 2
Steels and non-ferrous metals with min. 8% elongation
Bright for non-ferrous metals
With oil grooves for deeper thread
13 077 330 - …480
13 077 490 - …510
13 077 Fluteless tap
Application: Materials with good workability up to approx. 1000 N/mm 2
Steels and non-ferrous metals with min. 8% elongation
TiN for higher tapping speeds and longer tool lives
With oil grooves for deeper thread
M3 - M10 DIN 371 / M12 - M16 DIN 376
13 077 530 - …680
13 077 870 - …890
d1
13 077...
bright
13 077...
TiN
Pitch
mm
l1
mm
l2
mm
d2
mm
Square
mm
Tapping
drill size
mm
Taps and dies
M 3 330
530
M 4 360
560
M 5 390
590
M 6 410
610
M 8 440
640
M 10 480
680
M 12 490
870
M 14 500
880
M 16 510
890
P 15 - 20 12 - 25
M - 6 - 10
K - -
NE 12 - 18 15 - 26
H - -
S - -
0.5
0.7
0.8
1.0
1.25
1.5
1.75
2.00
2.00
56
63
70
80
90
100
110
110
110
11
13
16
19
22
24
28
30
32
3.5
4.5
6.0
6.0
8.0
10.0
9.0
11.0
12.0
2.7
3.4
4.9
4.9
6.2
8.0
7.0
9.0
9.0
2.8
3.7
4.65
5.55
7.40
9.20
11.20
13.10
15.10
156
ibemo Kazakhstan - 090301 Republic of Kazakhstan, West Kazakhstan Oblast, Aksai, Pramzone, BKKS office complex
Phone: +7 71133 93077 ; Fax: +7 71133 93074 ; E-Mail: info@ibemo-kz.com
“TOOLS”