HEIDENHAIN SW 54843x-02 DIN Programming - Manual (Page 354)

354 DIN programming
4.26 Milling cy
cles
R Radius of approaching/departing arc (default: 0)
 R=0: Contour element is approached directly; infeed to
starting point above the milling plane, then vertical plunge.
 R>0: Tool moves on approaching/departing arc that
connects tangentially to the contour element
 R<0 for inside corners: Tool moves on approaching/
departing arc that connects tangentially to the contour
element
 R<0 for outside corners: Contour element is approached/
departed tangentially on a line
P Milling depth (indicated as a negative value)
XS Milling top edge—lateral surface (replaces the reference plane
from the contour definition)
ZS Milling top edge—face (replaces the reference plane from the
contour definition)
RB Retraction plane (default: back to starting position)
 Front or rear face: Return position in Z direction
 Lateral surface: Return position in X direction (diameter)
B Chamfer width when deburring the edges
J Preparation diameter. For open contours, the contour to be
deburred is calculated from the programmed contour and J.
Remember that:
 J programmed: The cycle deburrs both sides of the slot (see
1 in the illustration).
 J not programmed: The deburring tool is so wide that both
sides of the slot are deburred in one pass (see 2 in the
illustration).
D Starting element number when partial figures are machined.
V End element number when partial figures are machined.
The direction of contour definition for figures is
counterclockwise. The first contour element for figures:
 Circular slot: The larger arc
 Full circle: The upper semicircle
 Rectangles, polygons and linear slots: The orientation angle
points to the first contour element.
A Sequence for "Milling, deburring": A=0 (default=0)
Parameters—Deburring