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Siemens SINUMERIK 808D User Manual

Siemens SINUMERIK 808D
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Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017
227
Parameter
Data type
Description
_PO REAL Pocket center point, ordinate
_MID REAL Maximum infeed depth (enter without sign)
_FAL
REAL
Finishing allowance at the pocket edge (enter without sign)
_FALD REAL Finishing allowance at the base (enter without sign)
_FFP1 REAL Feedrate for surface machining
_FFD
REAL
Feedrate for depth infeed
_CDIR INT Milling direction: (enter without sign)
Values:
0: Down-cut milling (in the spindle direction)
1: Conventional milling
2: With G2 (independent of spindle direction)
3: With G3
_VARI INT Machining type
UNITS DIGIT
Values:
1: roughing, 2: finishing
TENS DIGIT:
Values:
0: Perpendicular to the pocket center with G0
1: Perpendicular to the pocket center with G1
2: Along a helix
The other parameters can be selected as options. They define the insertion strategy and the overlap for solid machining (to
be entered without sign):
_MIDA
REAL
Maximum infeed width as a value in solid machining in the plane
_AP1
REAL
Pocket radius blank dimension
_AD REAL Blank pocket depth dimension from reference plane
_RAD1
REAL
Radius of the helical path during insertion (relative to the tool center point path)
_DP1
REAL
Insertion depth per 360° revolution on insertion along helical path
Function
Use this cycle to machine circular pockets in the machining plane. For finishing, a face cutter is required.
The depth infeed always starts at the pocket center point and be performed vertically from there; thus it is practical to predrill
at this position.
The milling direction can be determined either using a G command (G2/G3) or from the spindle direction as synchronous
or up-cut milling.
For solid machining, the maximum infeed width in the plane can be programmed.
Finishing allowance also for the pocket base.
Two different insertion strategies:
vertically to the pocket center
along a helical path around the pocket center
Shorter approach paths in the plane for finishing
Consideration of a blank contour in the plane and a blank dimension at the base (optimum machining of preformed
pockets possible).
_MIDA is recalculated during edge machining.

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Siemens SINUMERIK 808D Specifications

General IconGeneral
BrandSiemens
ModelSINUMERIK 808D
CategoryControl Unit
LanguageEnglish

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