Siemens SINUMERIK 840Di sl Operating Manual page 291

6
01/2008
Contour transition elements A transition element can be used whenever there is a point of
Abort
Delete
value
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition
Sequence of operations
intersection between two neighboring elements; this can be calculated
from the input values.
You can choose to insert either a radius RD or a chamfer FS as the
transition element between any two contour elements. The transition
is always appended to the end of a contour element. You select
transition elements in the parameter input screen for the relevant
contour element.
The undercut transition element is only offered in turning technology,
see Chapter "Undercuts in turning technology".
When you select "Abort", the contour element values are discarded
and you return to the main screen. The input focus switches back to
the contour chain.
The values for the element are deleted.
Radius or chamfer at the start or end of a turning contour.
In simple turning contours a chamfer or radius should generally be
appended at the start and end of the contour.
These form a closure to the axially parallel blank:
You select the direction of transition for the contour start in the starting
point screen. You can choose between chamfer and radius. The value
is defined in the same manner as for the transition elements.
In addition, four directions can be selected in a single selection field.
You select the direction of the transition element for the contour end in
the end screen. This selection is always listed, also if no transition was
entered in the preceding elements.
"Program" operating area
6.7 Free contour programming
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