9.4 Fundamentals
9.4.1 Machining planes
A workpiece can be machined on different planes. Two coordinate axes define a machining
plane. On lathes with X, Z, and C axes, three planes are available:
● Turning
● Face
● Peripheral surface
Machining planes, face and peripheral surface
The face and peripheral machining planes require the CNC-ISO functions "Face surface
machining" (Transmit) and "Cylindrical peripheral transformation" (Tracyl) to be set up.
These functions are a software option.
Additional Y axis
For lathes with an additional Y axis, the machining planes are expanded to include two more
planes:
● Face Y
● Peripheral surface Y
Therefore, the face and peripheral planes are called Face C and Peripheral C.
Inclined axis
If the Y axis is an inclined (oblique) axis (i.e. the axis is not perpendicular to the others), you can
also select the "Face Y" and "Peripheral Y" machining planes and program the traversing
movements in Cartesian coordinates. The control system then automatically transforms the
programmed traversing movements of the Cartesian coordinate system into the traversing
movements of the inclined (oblique) axis.
The CNC-ISO function "Oblique Axis" (Traang) is required for the purpose of transforming the
programmed traversing movements.
This function is a software option.
Selecting the machining plane
The machining plane selection is integrated into the parameter screen forms of the individual
drilling and milling cycles. For turning cycles and for "axial drilling" and "axial threads", the
turning plane is automatically selected. For the "straight" and "circle" functions, you must
specify the machining plane separately.
The settings for the machining plane always act modally, i.e. until you select another plane.
The machining planes are defined as follows:
Turning
The turning machining plane corresponds to the X/Z plane (G18).
Creating a ShopTurn program
9.4 Fundamentals
Turning
Operating Manual, 06/2019, A5E44903486B AB 291
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