HEIDENHAIN CNC PILOT 640 - Circular Arc in Lateral Surface Contour G112-;G113-Geo

DIN/ISO programming | Lateral surface contours
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HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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Circular arc in lateral surface contour G112-/G113-Geo
G112 and G113 define a circular arc in a lateral-surface contour.
Direction of rotation:
G112: In clockwise direction
G113: In counterclockwise direction
Parameters:
Z: Final point
C: End angle (polar)
CY: Final point as linear value (reference: unrolled Reference
diameter)
R: Radius
K: Center (in Z)
J: Center – angle of the center point as a linear value
Q: Intersect. pt. or Final 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: Chamf./round. – defines the transition to the next contour
element
When entering a Chamf./round., program the theoretical end
point.
No entry: Tangential transition
BR = 0: No tangential transition
BR > 0: Rounding radius
BR < 0: Width of chamfer
PZ: Final point (polar radius; reference: workpiece datum)
W: Center (polar angle; reference: workpiece datum)
PM: Center (polar radius; reference: workpiece datum)
AR: Start angle – tangential angle to rotary axis
AN: Final angle – tangential angle to rotary axis
Programming:
Z, CY: Absolute, incremental, modal or ?
C: Absolute, incremental or modal
K, J: Absolute or incremental
PZ, W, PM: Absolute or incremental
ARi: Angle to the previous element
ANi: Angle to the subsequent element