HEIDENHAIN NC 124 - Manual (Page 116)

14 Tables, Overviews and Diagrams
116 TNC 124
Diagram for machining
The TNC calculates the spindle speed S and feed rate F
with the INFO function Cutting Data (see Chapter 12).
Feed rate F for tapping
F = p • S [mm/min]
F: Feed rate in [mm/min]
p: Thread pitch [mm]
S: Spindle speed in [rpm]
Example: Calculating the feed rate F for tapping
p = 1 mm/rev
S = 500 rpm
F = 100 mm/min (F = 100 mm/min as read from the diagram)
0.1
1
10
10
0.2
20 25 12 15
0.012
0.15
F 1
.2
F 1
.5
F 2
F 2.5 [m
m
/m
in]
30
0.25
0.3
0.4
0.5
0.6
0.7
0.8
0.9
40 50 60 70 80 90
10
0
F 1
0 [m
m
/m
in]
F 3
F 4
F 6
F 7
F 8
F 9
F 5 [m
m
/m
in]
12
0
15
0
20
0
1.2
1.5
2
F 1
2
F 1
5
F 20
250 30
0
40
0
50
0
2.5
3
4
5
F 30
F 40
F 25 [m
m
/m
in]
F 50 [m
m/m
in]
60
0
70
0
80
0
90
0
1
000
6
7
8
9
12
0
0
15
0
0
20
0
0
250
0
30
0
0
40
0
0
50
0
0
60
0
0
70
0
0
80
0
0
90
0
0
10
0
0
0
F 1
00 [m
m/m
in]
F 60
F 70
F 80
F 90
F 1
20
F 1
50
F 20
0
F 250 [mm
/m
in]
F 30
0
F 40
0
F 50
0 [m
m/min]
F 60
0
F 70
0
F 80
0
F 90
0
F 1
00
0 [mm
/m
in]
F 1
20
0
F 1
50
0
F 20
00
F 250
0 [m
m
/min]
F 30
00
F 40
00
F 50
00
F 60
00
F 70
00
F 80
00
F 90
00
F 1
0 0
00 [mm
/m
in]
F 1
2 0
00
F 1
5 0
00
F 20 0
00
F 30 0
00 [m
m
/m
in]
F 25 0
00
Spindle speed S [rpm]
Thread pitch p [mm/rev]