Rotate; General; Stock Removal - Cycle951 - Siemens SINUMERIK 840D sl Operating Manual

4.5

Rotate

4.5.1

General

In all turning cycles apart from contour turning (CYCLE95), it is possible in the combined
roughing and finishing mode to reduce the feedrate during finishing for setting data
SD 55500 $SCS_TURN_FIN_FEED_PERCENT
in percent.
4.5.2

Stock removal - CYCLE951

Function
You can use the "Stock removal" cycle for longitudinal or transverse stock removal of
corners at outer or inner contours.
Machining method
● Roughing
If the tool does not round the corner at the end of the cut, it is raised by the safety distance
or a value specified in the machine data at rapid traverse. The cycle always observes the
lower value; otherwise, stock removal at inner contours, for example, could cause the
contour to be damaged.
HMI sl Turning
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
In roughing applications, paraxial cuts are machined to the finishing allowance that has
been programmed. If no finishing allowance has been programmed, the workpiece is
roughed down to the final contour.
During roughing, the cycle reduces the programmed infeed depth D if necessary so that it
is possible for cuts of an equal size to be made. For example, if the overall infeed depth is
10 and you have specified an infeed depth of 3, this would result in cuts of 3, 3, 3 and 1.
The cycle would reduce the infeed depth to 2.5 to create 4 equally sized cuts.
The angle between the contour and the tool cutting edge determines whether the tool
rounds the contour at the end of each cut by the infeed depth D, in order to remove
residual corners, or is raised immediately. The angle beyond which rounding is performed
is stored in a machine data element.
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Programming a cycle
4.5 Rotate
177