Heidenhain MANUALplus 4110 Manuel d'utilisateur Page 362

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362 6 DIN Programming
6.20 Face Machining
Circular arc, face G102/G103
Geometry command: G102/G103 defines a circular arc in a contour
on the face.
Machining command: The tool moves on a circular arc at feed rate to
the end point.
The direction of rotation is shown in the graphic support window.
Parameters
X end point (diameter value)
C end angle—for angle direction, see graphic support window
XK end point (Cartesian coordinates)
YK end point (Cartesian coordinates)
R radius
I center point (Cartesian coordinates)
K center point (Cartesian coordinates)
Q point of intersection (default: Q=0): If entered data permit two
possible solutions for the end point, "Q" defines the end point.
B chamfer/rounding arc: Transition to the next contour element
When entering a chamfer/rounding, program the theoretical end
point of the contour element.
B no input: Tangential transition
B=0: No tangential transition
B>0: Radius of rounding
B<0: Width of chamfer
Z end point
Example: G102, G103
%100.nc
[G100, G101, G102, G103, G793]
N1 T70 G197 S1200 G195 F0.2 M104
N2 M14
N3 G110 C0
N4 G0 X100 Z2
N5 G793 Z2 ZE-5 P2 U0.5 R0 I0.5 F0.15 H0 Q0
N6 G100 XK20 YK5
N7 G101 XK50 B5
N8 G103 XK5 YK50 R50 Q1 B5
N9 G101 XK5 YK20 B5
N10 G102 XK20 YK5 R20 B5
N11 G80
N12 M15
END
Define the end point either in polar or Cartesian
coordinates.
End point in the coordinate origin: Program XK=0,
YK=0.
Program either center or radius.
If you do not program the center, MANUALplus
automatically calculates the possible solutions for the
center and chooses that point as the center which
results in the shortest arc.
Permitted as geometry command only for G102/G103:
Parameters Q, B
Permitted as machining command only for G102/G103:
Parameter Z
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