5
ShopTurn Functions 08/2005
5.6 Contour millin
5
♥ Siemens AG, 2005. All rights reserved
5-284 SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
Approach/Retract mode
You can approach or retract from the contour in a quadrant,
semicircle or along a straight line.
In the case of a quadrant or semicircle, you have to specify the
radius of the cutter center path and for a straight line, the distance
from the outer edge of the cutter to the start point or end point of
the contour.
You can also specify different modes for approach and retraction,
for example, approach in quadrant mode and retract in semicircle
mode.
Approaching on a straight line, in a quadrant and in a semicircle
Approach/Retract strategy
Approaching in the plane is performed first in the Z direction in the
depth and then in the XY plane. Retraction is performed in reverse
order.
In the case of three-dimensional approach/retraction, traversing is
performed simultaneously in the depth and in the plane.
You can also specify different strategies for approach and
retraction, for example, approach in the plane and retract three-
dimensionally.
Center path
If you do not want to use cutter radius compensation, the programmed
contour is milled on the center path.
In this case, approaching and retraction is only possible along a
straight line or vertical. Vertical approach/retraction can be used for
closed contours, for example.
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