HEIDENHAIN 548431-05, User Manual, Page: 317 / 722

Teach-in | Thread and undercut cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
317
Thread cycle (longitudinal)
Select
Thread cutting
Select Thread cycle
Select the type of thread:
On:
Internal thread
Off: External thread
This cycle cuts a single external or internal thread with a thread
angle of 30°. Tool infeed is performed in the X axis only.
Cycle parameters:
X , Z : Start point of thread
Z2
:
End point thread
F1 : Thread pitch (= feed rate)
U : Thread depth (default: no input)
Outside thread:
U
= 0.6134 *
F1
Inside thread: U = –0.5413 * F1
I
:
Max. approach
I < U : First cut with I , all subsequent cuts with cutting-depth
reduction
I = U : One cut
No input:
I
is calculated from
U
and
F1
G47 : Safety clearance
Further information: "Safety clearance G47", Page 180
T : Tool number – turret pocket number
G14
:
Tool change point
Further information: "Tool change point G14", Page 180
ID : ID no.
S : Constant spindle speed
GV : Type of infeed
Further information: "GV parameter: Type of infeed", Page 313
0: Const. mach. X-section
1: Const. infeed
2: EPL with distrib. of cuts
3: EPL w/o distrib. of cuts
4: MANUALplus 4110
5: Constant infeed (4290)
6: Const. w/ distrib. (4290)
GH : Type of offset
0: Without offset
1: From left
2: From right
3: Alternating left/right
A
:
Approach ang.
(range: –60° <
A
< 60°; default: 30°)
A < 0: Infeed on left thread flank
A
> 0: Infeed on right thread flank