HEIDENHAIN MANUALplus 620 409
5.6 Linear and Circular Movements in the Y Axis
Milling: Circular movement G2, G3—incremental
center coordinates
G2/G3 moves the tool in a circular arc at the feed rate to the “end
point.”
The execution of G2/G3 varies depending on the working plane:
G17 Interpolation in the XY plane
Infeed in Z direction
Center definition: with I, J
G18 Interpolation in the XZ plane
Infeed in Y direction
Center definition: with I, K
G19 Interpolation in the YZ plane
Infeed in X direction
Center definition: with J, K
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.
Parameters
X Final point (diameter)
Y Final point
Z Final point
I Incremental center point (radius)
J Incremental center point
K Incremental center point
R Radius
Q Point of intersection. End point if the circular arc intersects a
line segment or another circular arc (default: 0):
0: Near point of intersection
1: Far point of intersection
BR Chamfer/rounding. Defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point.
No entry: Tangential transition
BR=0: No tangential transition
BR>0: Rounding radius
BR<0: Width of chamfer
BE Special feed factor for chamfer/rounding arc (default: 1)
Special feed rate = active feed rate * BE (0 < BE <= 1)
Programming X, Y, Z: Absolute, incremental or modal or
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