Siemens SINUMERIK 840D sl Operation/Programming Manual page 199

08/2005
5
Parameters
T, D, F, S, V See Sec. "Creating program blocks".
Machining
type
Position Groove position:
Reference Reference point:
point
Reference point ¬ (abs)
X0
Z0 Reference point (abs)
B1 Recess width, bottom (incr.)
B2 Recess width, top (inc) alternative to B1 – (only for recess with oblique lines and
radii)
T1 Recess depth at reference point (abs or inc)
T2 Recess depth opposite reference point (abs or inc) alternative to T1 –
(only for inclined recess with oblique lines, radii and chamfers)
α0
Angle of the incline on which the recess should be machined – (only for inclined
recess with oblique lines, radii and chamfers)
The angles can be between -180 and +180°
Longitudinal recess:
Face recess:
A positive angle indicates rotation from the X axis to the Z axis
α1, α2
Flank angle (not for simple recess cycle)
Asymmetrical recesses can be described by separate flank angles. The angles can
be between 0 and < 90°.
FS Chamfer (n = 1 ... 4) alternative to R (not for simple recess cycle)
R Radius (n = 1 ... 4) alternative to FS (not for simple recess cycle)
D Infeed depth for 1st cut (inc) – (for roughing only)
D=0:
D>0:
All further cuts are made directly to final depth T1.
The lateral infeed for the alternate cuts is determined automatically in the cycle.
Alternate cutting is not possible if the tool can only reach the recess base at one
position.
U Contour-parallel finishing allowance in X and Z direction (inc) – (roughing only) –
(alternative to UX and UZ)
UX Finishing allowance in X direction (inc) – (roughing only) – (alternative to U)
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
Roughing
Finishing
+ Complete machining
α = 0° ⇒ Parallel to the Z axis
0
α = 0° ⇒ Parallel to the X axis
0
1. 1st cut is made directly to final depth T1
The 1st and 2nd cuts are made alternately to infeed depth D
for improved chip clearance and avoidance of tool breakage.
5
Description
1 2
3
4
ShopTurn Functions
5.3 Turning
D
D
T1
5
Unit
mm
mm
mm
mm
mm
mm
Degrees
Degrees
mm
mm
mm
mm
mm
5-199