Siemens SINUMERIK 828D Operating Manual page 263

Supplementary conditions for plunge cutting
● Roughing
● Maximum radial infeed
● Increment
● Retraction
● Retraction
● Safety clearance
Please note that the milling cutter's cutting edge cannot be checked for the maximum radial
infeed.
HMI sl Milling
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
1/2 slot width W - finishing allowance UXY ≤ milling cutter diameter
The maximum infeed depends on the width of the cutting edge
of the milling cutter.
The lateral increment is calculated on the basis of the required slot width, milling cutter
diameter and finishing allowance.
Retraction involves the milling cutter being retracted at a 45° angle following insertion, if
the wrap angle is less than 180°.
Otherwise, retraction is perpendicular, as is the case with drilling.
Retraction is performed perpendicular to the wrapped surface.
Traverse through the safety clearance beyond the end of the
workpiece in order to avoid rounding-off the
slot walls at the ends.
Programming technological functions (cycles)
8.2 Milling
263