Heidenhain MANUALplus 4110 User Manual Page 319

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HEIDENHAIN MANUALplus 4110 319
6.12 Simple Turning Cycles
6.12 Simple Turning Cycles
Roughing longitudinal G81
G81 machines the contour area defined by the current tool position
and "X, Z" in longitudinal direction.
Parameters
X starting point of contour section (diameter value)
Z end point of contour section
I maximum infeed in X: The proportioning of cuts is calculated so that
an "abrasive cut" is avoided and the calculated infeed distance is <=
I.
I>0: With machining contour outline
I<0: Without machining contour outline
K offset: Infeed in Z (default: 0)
Q G function infeed: Infeed is executed through G function
Q=0: Infeed with G0
Q=1: Infeed with G1
V type of retraction (default: 0)
V=0: Return to cycle starting point in Z and last retraction diameter
in X
V=1: Return to starting point of cycle
Note on the execution of the cycle:
If you wish to machine an oblique cut, you can define the angle with
I and K.
MANUALplus automatically determines the cutting and infeed
directions from the current tool position relative to the starting
point / end point of the contour area.
Example: G81
%81.nc
[G81]
N1 T3 G95 F0.25 G96 S200 M3
N2 G0 X120 Z2
N3 G81 X100 Z-70 I4 K4 V0
N4 G0 X100 Z2
N5 G81 X80 Z-60 I-4 K2 V1
N6 G0 X80 Z2
N7 G81 X50 Z-45 I4 Q1
END
Cutter radius compensation: is not carried out.
Oversizes: Oversizes programmed with G57 are taken
into account. The oversizes remain in effect after
execution of the cycle.
Oversizes for inside contours: Program negative
oversizes with G57 (possible only with "Free entry").
Safety clearance after a pass is 1 mm.
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