11 .1 under cut and thr ead p a ra met ers – HEIDENHAIN CNC Pilot 4290 User Manual
Page 439
HEIDENHAIN CNC PILOT 4290
427
Internal thread (continued)
Thr.pitch
I
K
R
W
1
0.5
5.2
0.6
30°
1.25
0.5
6.7
0.6
30°
1.5
0.5
7.8
0.8
30°
1.75
0.5
9.1
1
30°
2
0.5
10.3
1
30°
2.5
0.5
13
1.2
30°
3
0.5
15.2
1.6
30°
3.5
0.5
17.7
1.6
30°
4
0.5
20
2
30°
4.5
0.5
23
2
30°
5
0.5
26
2.5
30°
55
0.5
28
3.2
30°
6
0.5
30
3.2
30°
11.1.2 Undercut DIN 509 E, Parameters
The undercut parameters are determined from the
cylinder diameter;
Where:
I = undercut depth
K = undercut length
R = undercut radius
W = undercut angle
diameter
I
K
R
W
P
A
<= 1.6
0.1
0.5
0.1
15°
0.1
8°
> 1.6 – 3
0.1
1
0.2
15°
0.1
8°
> 3 – 10
0.2
2
0,4
15°
0.1
8°
> 10 – 18
0.2
2
0.6
15°
0.1
8°
> 18 – 80
0.3
2.5
0.6
15°
0.2
8°
> 80
0,4
4
1
15°
0.3
8°
diameter
I
K
R
W
<= 1.6
0.1
0.5
0.1
15°
> 1.6 – 3
0.1
1
0.2
15°
> 3 – 10
0.2
2
0.2
15°
> 10 – 18
0.2
2
0.6
15°
> 18 – 80
0.3
2.5
0.6
15°
> 80
0,4
4
1
15°
11.1.3 Undercut DIN 509 F, Parameters
The undercut parameters are determined from the
cylinder diameter;
Where:
I = undercut depth
K = undercut length
R = undercut radius
W = undercut angle
P = transverse depth
A = transverse angle
11
.1 Under
cut and
Thr
ead P
a
ra
met
ers