Siemens SINUMERIK 840D sl Operating Manual page 197

Simulation display
You can choose one of the following types of display:
● Material removal simulation
During simulation or simultaneous recording you can follow stock removal from the defined
blank.
● Path display
You have the option of including the display of the path. The programmed tool path is
displayed.
Note
Tool display in the simulation and for simultaneous recording
In order that workpiece simulation is also possible for tools that have either not been
measured or have been incompletely entered, certain assumptions are made regarding the
tool geometry.
For instance, the length of a miller or drill is set to a value proportional to the tool radius so
that cutting can be simulated.
Note
Inaccurate display for tools with large radii
The display of the tool cutting edge depends on the radius set in the tool parameters. The
greater the radius, the more rounded the cutting edge is displayed in the simulation and
further the traversing path (= center point path) is away from the machined contour.
Because of these inaccuracies in the graphic display, it may appear in the simulation that
no material is removed during the machining.
Note
Thread turns are not displayed
For thread and drill thread milling, the thread turns are not displayed in the simulation and
for simultaneous recording.
Display variants
You can choose between three variants of graphical display:
● Simulation before machining of the workpiece
Before machining the workpiece on the machine, you can perform a quick run-through in
order to graphically display how the program will be executed.
● Simultaneous recording before machining of the workpiece
Before machining the workpiece on the machine, you can graphically display how the
program will be executed during the program test and dry run feedrate. The machine axes
do not move if you have selected "no axis motion".
● Simultaneous recording during machining of the workpiece
You can follow machining of the workpiece on the screen while the program is being
executed on the machine.
Turning
Operating Manual, 05/2017, A5E40868721
Simulating machining
7.1 Overview
197