Programming technology functions (cycles)
9.3 Contour turning
Turning
404 Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Stock removal (CYCLE952)
Function
For stock removal, the cycle takes into account a blank that can comprise a cylinder, an
allowance on the finished-part contour or any blank contour. You must define a blank
contour as a separate closed contour in advance of the finished-part contour.
For a G code program, at least one CYCLE62 is required before CYCLE952.
If CYCLE62 is only present once, then this involves the finished part contour.
If CYCLE62 is present twice, then the first call is the blank contour and the second call is the
finished-part contour (also see Chapter "Programming (Page 390)").
Note
Execution from external media
If you execute programs from an external drive (e.g. local drive or network drive), then you
require the execution from external storage functi
on (EES).
For additional information, please refer to the following documentation:
Commissioning Manual SINUMERIK Operate (IM9) / SINUMERIK 840D sl
Using the execution from external storage function (EES) you have the
option of accessing any logical drive with part programs and
directly executing these the same as via the NC program memory
In order to avoid residual corners during roughing, you can enable the "Always round the
contour" function. This will remove the protrusions that are always left at the end with each
cut (due to the cut geometry). The "Round to the previous intersection" setting accelerates
machining of the contour. However, any resulting residual corners will not be recognized or
machined. Thus, it is imperative that you check the behavior before machining using the
simulation.
When set to "automatic", rounding is always performed if the angle between the cutting edge
and the contour exceeds a certain value. The angle is set in a machine data element.
Please refer to the machine manufacturer's specifications.
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