DIN/ISO programming | Milling cycles
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
Linear slot, front face G791
G791 mills a slot from the current tool position to the Final point.
The slot width equals the diameter of the milling cutter. Oversizes are
not taken into account.
Parameters:
X: Diameter – final point of slot in polar coordinates
C: End angle – final point of slot in polar coordinates (for angle
direction, see help graphic)
XK: Final point (Cartesian)
YK: Final point (Cartesian)
K: Length
A: Angle – rotation angle
ZE: Milling floor
ZS: Millg. top edge
J: Milling depth
J > 0: Infeed direction -Z
J < 0: Infeed direction +Z
P: Max. approach (default: Milling in one infeed)
F: Approach feed for plunging (default: active feed rate)
Parameter combinations for definition of the end point: see help
graphic
Parameter combinations for definition of the milling plane:
Milling floor ZE, Millg. top edge ZS
Milling floor ZE, Milling depth J
Millg. top edge ZS, Milling depth J
Milling floor ZE
Rotate the spindle to the desired angle position before
calling G791.
If you use a spindle positioning device (no C axis), an
axial slot is machined centrically to the rotary axis.
If J or ZS is defined, the tool approaches to safety
clearance in Z and then mills the slot. If J and ZS are
not defined, the milling cycle starts from the current
tool position
Example: G791
%791.nc
N1 T7 G197 S1200 G195 F0.2 M104
N2 M14
N3 G110 C0
N4 G0 X100 Z2
N5 G100 XK20 YK5
N6 G791 XK30 YK5 ZE-5 J5 P2
N7 M15
END
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