HEIDENHAIN TNC 640 - Page 675

Turning | Basic functions (option 50)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
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16.2 Basic functions (option 50)
Switching between milling/turning mode of operation
Refer to your machine manual.
The machine tool builder configures and enables turning
and switchover of the machining modes.
To switch between milling and turning operations you must switch
to the specific mode.
You can switch these operating modes with the NC functions
FUNCTIONMODETURN and FUNCTIONMODEMILL.
The control shows a symbol in the status display when the turning
mode is active
Icon Mode of operation
Turning mode active: FUNCTION MODE TURN
No symbol
Milling mode active: FUNCTION MODE MILL
When the operating modes are toggled the control executes a
macro that defines the machine-specific settings for the specific
operating mode. With the NC functions FUNCTIONMODETURN
and FUNCTIONMODEMILL you can activate a machine kinematic
model that the machine manufacturer has defined and saved in the
macro.
NOTICE
Caution: Significant property damage!
Very high physical forces are generated during turning, for
example by high rotational speeds and heavy or unbalanced
workpieces. Incorrect machining parameters, neglected
unbalances or improper fixtures lead to an increased risk of
accidents during machining!
Clamp the workpiece in the spindle center
Clamp workpiece securely
Program low spindle speeds (increase as required)
Limit the spindle speed (increase as required)
Eliminate unbalance (calibrate)