HEIDENHAIN SW 548328-05 - Manual (Page 259)

HEIDENHAIN MANUALplus 620 259
4.6 Thr
ead and under
c
ut cy
cles
Thread cycle (longitudinal)—expanded
Call the thread-cutting menu
Select thread cycle
Press the Expanded soft key
 On: Internal thread
 Off: External thread
This cycle cuts a single or multi-start external or internal thread. The
thread starts at the starting point and ends at the end point of
thread
(without a thread run-in or run-out).
Cycle parameters
X, Z
Starting point of thread
Z2 End point of thread
F1 Thread pitch (= feed rate)
D Number of thread starts (default: 1 single-start thread)
U Thread depth – No input:
 External thread: U=0.6134*F1
 Internal thread: U=–0.5413*F1
I Maximum infeed
 Ireduction of cutting depth
 I=U: One cut
 No input: I is calculated from U and F1
GK Run-out length
G47 Safety clearance (see page 124)
G14 Tool change point (see page 124)
T Turret pocket number
ID Tool ID number
S Spindle speed/cutting speed
GV Type of infeed
 0: Constant mach. X-section
 1: Constant infeed
 2: W/ remaining cutting (with distribution of remaining
cuts)
 3: W/o remaining cutting (without distribution of
remaining cuts)
 4: Same as MANUALplus 4110