Programming A Circle With Known Radius - Siemens SINUMERIK 840D sl Turning Operating Manual

Parameters
X
Y
I
J
X
Z
I
K
F
10.7.13

Programming a circle with known radius

To program a circle or arc with a known radius, use the "Circle radius" function.
The tool traverses a circular arc with the programmed radius from its actual position to the
programmed target position at the machining feedrate. To do this, the system calculates the
position of the circle center point.
You can choose to traverse the arc in the clockwise or anticlockwise direction. Depending on
the direction of rotation, there are two options for approaching the target position from the
current position via an arc of the specified radius.
You can select the arc of your choice by entering a positive or a negative sign for the radius.
Figure 10-20
Turning
Operating Manual, 06/2019, A5E44903486B AB
Description
Machining plane face Y
Target position X (abs) or target position X referred to the last programmed position
(inc)
Target position Y (abs) or target position Y referred to the last programmed position
(inc)
Circle center point I (inc).
Circle center point J (inc).
Note:
Incremental dimension: The sign is also evaluated.
Machining plane rotation
Target position X ∅ (abs) or target position Y referred to the last programmed posi‐
tion (inc)
Target position Z (abs) or target position X referred to the last programmed position
(inc)
Circle center point I (ink).
Circle center point K (inc)
Note:
Incremental dimension: The sign is also evaluated.
Machining feedrate
Opening angle
Programming technology functions (cycles)
10.7 Additional cycles and functions in ShopTurn
Unit
mm
mm
mm
mm
mm
mm
mm
mm
mm/rev
mm/min
mm/tooth
643