Entering The Master Dimension - Siemens SINUMERIK 840D sl Operating Manual

Programming technology functions (cycles)
8.3 Contour turning
Parameters
X
K
I
α1
β1
β2
Transition to next
element
Radius
Chamfer
CA
Additional commands
Contour element "End"
The data for the transition at the contour end of the previous contour element is displayed in
the "End" parameter screen.
The values cannot be edited.
8.3.5

Entering the master dimension

If you would like to finish your workpiece to an exact fit, you can input the master dimension
directly into the parameter screen form during programming.
Specify the master dimension as follows:
F<Diameter/Length> <Tolerance class> <Tolerance quality>
"F" identifies that a master dimension follows, i.e. in this case, a hole.
Example: F20h7
Possible tolerance classes:
A, B, C, D, E, F, G, H, J, T, U, V, X, Y, Z
Upper-case characters: Holes
Lower case letters: Shafts
Possible tolerance qualities:
1 to 18, if they are not restricted by DIN standard 7150.
352
Description
End point X ∅ (abs) or end point X (inc)
Circle center point K (abs or inc)
Circle center point I ∅ (abs or circle center point I (inc)
Starting angle to Z axis
End angle to Z axis
Opening angle
Type of transition
Radius
•
Chamfer
•
R Transition to following element - radius
FS Transition to following element - chamfer
Grinding allowance
Grinding allowance to right of contour
•
Grinding allowance to left of contour
•
Additional G code commands
Operating Manual, 03/2013, 6FC5398-8CP40-3BA1
Unit
mm
mm
mm
Degrees
Degrees
Degrees
mm
mm
mm
Turning