HEIDENHAIN SW 54843x-02 DIN Programming - Manual (Page 512)

512 DIN programming for the Y axis
6.7 Milling cy
cles f
o
r the Y axis
Pocket milling—finishing G846 (Y axis)
G846 finishes closed contours defined in the XY or YZ plane in the
program sections:
 FACE_Y
 REAR SIDE_Y
 LATERAL_Y
You can change the cutting direction with the "cutting direction H,"
the "machining direction Q" and the direction of tool rotation.
Parameters—finishing
ID
Milling contour—name of the contour to be milled
NS Starting block no. of contour
 Figures: Block number of the figure
 Free closed contour: A contour element (not starting point)
B Milling depth (default: depth from the contour description)
P Maximum infeed (default: milling in one infeed)
XS Milling top edge in YZ plane (replaces the reference diameter
from the contour description)
ZS Milling top edge in XY plane (replaces the reference plane from
the contour description)
R Radius of approaching/departing arc (default: 0)
 R=0: Contour element is approached directly. Feed to the
starting point above the milling plane, then vertical plunge.
 R>0: Tool moves on approaching/departing arc that
connects tangentially to the contour element.
U (Minimum) overlap factor. Defines the overlap of milling paths
(default: 0.5).
Overlap = U*milling diameter
V Overrun factor—no effect with C-axis machining
H Cutting direction (default: 0)
 0: Up-cut milling
 1: Climb milling
F Feed rate for infeed (default: active feed rate)
E Reduced feed rate for circular elements (default: current feed
rate)
RB Retraction plane (default: back to starting position)
 XY plane: Retraction position in Z direction
 YZ plane: Retraction position in X direction (diameter)
Q Machining direction (default: 0)
 0: From the inside out (from the inside towards the outside)
 1: From the outside in (from the outside towards the inside)