HEIDENHAIN MANUALplus 4110 - Manual (Page 377)

HEIDENHAIN MANUALplus 4110 377
6.21 Lat
er
al Surf
ace Mac
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ining
Contour and figure milling cycle, lateral surface
G794
G794 mills figures or (open or closed) "independent" contours on the
lateral surface. G794 is followed by:
„ The figure to be milled with:
„ Circle (G314), rectangle (G315) or polygon (G317)
„ Conclusion of contour definition (G80)
„ The independent contour with:
„ Starting point (G110)
„ Contour definition (G111, G112, G113)
„ Conclusion of contour definition (G80)
Parameters
 X milling top edge
 XE milling floor
 P maximum infeed (default: Total depth in one infeed)
 U overlap factor: Machining of contour or pocket (default: 0)
„ U=0: Contour milling
„ U>0: Pocket milling—minimum overlap of milling paths =
U*milling diameter
 R approaching radius: (Radius of approaching/departing arc)—
(default: 0)
„ R=0: Contour element is approached directly; feed 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: Length of linear approaching/departing
element; contour element is approached/departed tangentially.
 K oversize contour-parallel
 I oversize X (in infeed direction)
 F feed rate for infeed (default: Active feed rate)
 E reduced feed rate for circular elements (default: Active feed rate)
 H cutting direction (default: 0): The cutting direction (see
graphic support window) can be changed with H and the direction
of tool rotation.
„ H=0: Up-cut milling
„ H=1: Climb milling
Example: G794
%110.nc
[G110, G111, G113, G794]
N1 T71 G197 S1200 G195 F0.2 M104
N2 M14
N3 G120 X100
N4 G110 C0
N5 G0 X110 Z5
N6 G794 X100 XE97 P2 U0.5 R0 K0.5 F0.15 H0
Q0
N7 G110 Z-20 CY0
N8 G111 Z-40
N9 G113 CY39.2699 K-40 J19.635
N10 G111 Z-20
N11 G113 CY0 K-20 J19.635 B0
N12 G80
N13 M15
END