Programming and Operating Manual (Milling)
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6FC5398-4DP10-0BA1, 01/2014
Sequence
Position reached prior to cycle start:
The starting point is a position in the positive range of the abscissa with the approach semi-circle and the programmed raw
dimension taken into account.
Sequence of motions when roughing (VARI=1):
●
Approach/retraction from contour:
The retraction plane (RTP) is approached at rapid traverse rate to then be able to position at this height to the starting point
in the machining plane. The starting point is defined with reference to 0 degrees of the axis of the abscissa.
The tool is fed to the safety clearance (SDIS) at rapid traverse with subsequent traversing to the machining depth at
feedrate. To approach the spigot contour, the tool is approached along a semi-circular path using the programmed blank
spigot.
The milling direction can be determined either as up-cut milling or down-cut milling with reference to the spindle direction.
If the spigot is bypassed once, the contour is left along a semi-circle in the plane, and the tool is fed to the next machining
depth.
The contour is then reapproached along a semi-circle and the spigot traversed once. This process is repeated until the
programmed spigot depth is reached.
Then, the retraction plane (RTP) is approached at rapid traverse rate.
●
Depth infeed:
–
Feeding to the safety clearance
–
Insertion to machining depth
The first machining depth is calculated from the total depth, finishing allowance, and the maximum possible depth infeed.
Sequence of motions when finishing (VARI=2):
According to the set parameters FAL and FALD, either finishing is carried out at the surface contour or at the base or both
together. The approach strategy corresponds to the motions in the plane as with roughing.
Explanation of the parameters
For an explanation of the parameters RTP, RFP, SDIS, DP, and DPR, refer to Section "Drilling, centering - CYCLE81
(Page 126)".
For an explanation of the parameters MID, FAL, FALD, FFP1, and FFD, refer to Section "Milling a rectangular pocket -
POCKET3 (Page 197)".
PRAD (diameter of spigot)
Enter the diameter without sign.
