Siemens SINUMERIK 802D sl Programming And Operating Manual page 92

Manual machining
5.4 Manual machining using cycles (functions)
Input fields
The input fields in the "Roughing C" screen form have the following meanings:
Parameter
Length l1
Length l2
Length l3
Diameter d1
Diameter d2
Radius r
Convex/concave
Max. infeed depth m1
Finishing m2
allowance
The following possibilities exist for the position of the geometry:
Figure 5-52
92
Description
Enter the end point of the contour in the axial axis here, taking the contour start position
("Reference z0") in the axial axis (Z axis) as the starting point.
End point of filleting in the longitudinal axis (Z axis).
Start point of filleting in the longitudinal axis (Z axis).
Outside diameter of the "step" to be machined in the radial axis (absolute position of the X
axis in the diameter).
Inside diameter of the "step" to be machined in the radial axis (absolute position of the X
axis in the diameter).
This entry value determines the size of the filleting, the center of the circle being calculated
internally. It is located on the imaginary line that is central and "normal" (90
imaginary connecting line between points "l2/d1" and "l3/d2". The choice of whether the
center point is on the side of the contour facing towards or away from the turning center is
determined by the "convex/concave" function key setting. If the radius entered is too small,
an error message will be displayed during machining (after NC start) since the contour
cannot be produced in this case.
This toggle key is used to specify on which side of the contour the circle center point should
be located. The circular machining direction, and hence the appearance of the finished
contour, is adjusted accordingly.
Enter the maximum infeed depth for roughing. The internal infeed calculation ensures that
the infeed is as uniform as possible throughout the roughing operation. This entry value
represents the maximum value possible and is therefore not exceeded.
Finishing allowance in the X axis (m2x)
Finishing allowance in the Z axis (m2z)
Roughing cycle C, position "Inside right"
Programming and Operating Manual, 06/2009, 6FC5398-6CP10-1BA0
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Manual Machine Plus Turning