Siemens SINUMERIK 840D sl Operating Manual page 511

Contour element "Straight line, e.g. X"
Parameters
Machining
surface
(only for ShopTurn)
X
α1
α2
Transition to next ele‐
ment
Radius
Chamfer
Additional commands
Contour element "straight line, e.g. Y"
Parameters
Machining
surface
(only for ShopTurn)
Y
α1
Transition to next ele‐
ment
Turning
Operating Manual, 05/2017, A5E40868721
6. When entering data for a contour element, you can program the transition
to the preceding element as a tangent.
Press the "Tangent to prec. elem." softkey. The angle to the preceding
element α2 is set to 0°. The "tangential" selection appears in the param‐
eter input field.
7. Repeat the procedure until the contour is complete.
8. Press the "Accept" softkey.
The programmed contour is transferred to the machining plan (program
view).
9. If you want to display further parameters for certain contour elements,
e.g. to enter additional commands, press the "All parameters" softkey.
Description
● Face C
● Face Y
● Face B
● Peripheral surface C
● Peripheral surface Y
End point X (abs or inc)
Starting angle e.g. to the X axis
Angle to the preceding element
Type of transition
● Radius
● Chamfer
R Transition to following element - radius
FS Transition to following element - chamfer
Additional G code commands
Description
● Face C
● Face Y
● Face B
● Peripheral surface C
● Peripheral surface Y
End point Y (abs or inc)
Starting angle to X axis
Type of transition
● Radius
● Chamfer
Programming technology functions (cycles)
10.5 Contour milling
Unit
mm
Degrees
Degrees
mm
mm
Unit
mm
Degrees
511