Siemens SINUMERIK 840D Programming Manual page 282

4
Turning Cycles
4.3 Grooving cycle – CYCLE93
If the programmed groove width is less than the actual
tool width, the error message
61602 "Tool width incorrectly defined" is output,
the cycle is not started and machining is aborted.
The alarm is also output if the value zero has been
entered for the tool nose width.
STA1 (angle)
The angle of the oblique surface on which the
groove is to be machined is programmed with
parameter STA1. The angle can have any value
between 0 and 180 degrees and always refers to the
longitudinal axis.
ANG1 and ANG2 (flank angle)
Asymmetrical grooves can be described by separate
flank angles. The angles can be assigned any value
between 0 and 89.999 degrees.
RCO1, RCO2 and RCI1, RCI2 (radius/chamfer)
The shape of the groove can be modified by entering
radii/chamfers for the edge or base of the groove.
The values for the radii must always be positive, the
values for the chamfers must always be negative.
You can use the tens setting for the VARI parameter
to determine the type of calculation for programmed
milling.
• With VARI<10 (tens=0) the absolute value of this
parameter is regarded as chamfer length
(chamfering with CHF programming).
• With VARI>10, it is regarded as path length
(chamfering with CHR programming).
4-282
X
SPL
IDEP
ANG2
WIDG
X
ANG2
ANG1
SPL
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
4
03.96
08.97
STA1
ANG1
Z
IDEP
DIAG
STA1
Z
© Siemens AG, 2002. All rights reserved