Siemens SINUMERIK 808D User Manual page 48

Parameters
Parameter
Reference z0
Thread length l
Diameter Start d1
Diameter End d2
Lead s
Depth t
Infeed angle w
Max. infeed depth m1
Min. infeed depth
Finishing allow- m2
ance
Thread run-out r
path
48
Taper female thread:
Description
Start position for the thread in the longitudinal axis (absolute position of the Z axis).
Enter the length of the thread to be created, taking the start position for the thread ("Refer-
ence z0") as the starting point. The choice of whether to produce a left-hand or a right-hand
thread depends purely on the starting direction for the spindle.
Start position for the thread in the transverse axis (absolute position of the X axis in the
diameter). This value applies in the reference point.
End position for the thread in the transverse axis (absolute position of the X axis in the di-
ameter).
Enter the required pitch in mm/rev.
This parameter is used to set the thread depth.
Note:
If the value of the displayed machine date 1108 equals 1 (requirement for automatically
calculating the thread depth) and the input field "t" equals 0, then the thread depth "t" will be
automatically calculated and entered when you enter the pitch value.
The following applies to all male threads:
a thread pitch of 1 mm results in a thread depth of 0.613 mm
•
The following applies to all female threads:
a thread pitch of 1 mm results in a thread depth of 0.541mm
•
The thread depth is adjusted according to an increase or reduction in the pitch value.
Infeed angle; this specifies the angle of infeed during machining. A negative value causes
an alternating infeed.
Enter here the maximum or minimum infeed depth for roughing. The cycle-internal infeed
calculation ensures that this entry value is not exceeded or falls short during thread cutting.
Finishing allowance
Thread run-out path
Programming and Operating Manual (Manual Machine Plus (MM+), Turning)
01/2017