HEIDENHAIN 548431-05 User Manual page 636

9
Finishing – Machining analysis
Machining analysis
Parameter
Minimum finishing transverse
length FMPL
Maximum finishing cut depth
FMST
Number of revolutions for
chamfer or rounding FMUR
The following applies to FMPL:
The additional transverse cut is executed from the
outside toward the inside
The Transverse angle variation PWA has no effect
on the analysis of the transverse elements
636
Meaning
TURN PLUS checks the front-
most element of the outside
contour to be finished.
The following applies:
Without inside contour:
Always with additional
transverse cut
With inside contour – FMPL
>= l1: Without additional
transverse cut
With inside contour –
FMPL < l1: With additional
transverse cut
FMST defines the permissible
infeed depth for non-machined
undercuts. The finishing cycle
(G890) uses this parameter to
determine whether undercuts
(form E, F, G) will be machined
with a contour-finishing opera-
tion.
The following applies:
FMST > ft: With undercut
machining (ft: undercut
depth)
FMST <= ft: Without
undercut machining
The feed rate is reduced such
that at least FMUR revolutions
can be executed (evaluation:
finishing cycle G890).
Organization mode of operation | Parameters
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017