Siemens SINUMERIK 840D sl Operation/Programming Manual page 217

08/2005
5
Creating a contour
element
...
All
parameters
Tangent to preceding
element
Tangent to
prec. elem.
Selecting a dialog
Select
dialog
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
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Feedrate for transition element
If you have chosen a chamfer or a radius as the transition
element, enter a reduced feedrate in the "FRC" parameter. The
slower machining rate means that the transition element is turned
more accurately.
Select a contour element via softkey.
Enter all the data available from the workpiece drawing in the
input form (e.g. length of straight line, target position, transition to
next element, angle of lead, etc.).
Press the "Accept" softkey.
The contour element is added to the contour.
Repeat the procedure until the contour is complete.
Press the "Accept" softkey.
The programmed contour is transferred to the machining plan.
If you want to display further parameters for certain contour elements,
e.g. to enter additional commands, press the "All parameters" softkey.
When entering data for a contour element you can program the
transition to the preceding element as a tangent.
Press the "Tangent to prec. elem." softkey.
The angle to the preceding element α2 is set to 0°. The "tangential"
selection appears in the parameter input field.
When entering data for a contour element, there may be two different
contour options, one of which you have to select.
Press the "Select dialog" softkey to switch between the two
different contour options.
The selected contour appears in the graphics window as a solid black
line and the alternative contour appears as a dashed green line.
ShopTurn Functions
5.4 Contour turning
5
5-217