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Siemens SINUMERIK 804D sl Programming Manual

Siemens SINUMERIK 804D sl
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2.3 Creating an NC program
2.3.1 Basic procedure
The programming of the individual operation steps in the NC language generally represents
only a small proportion of the work in the development of an NC program.
Programming of the actual instructions should be preceded by the planning and preparation of
the operation steps. The more accurately you plan in advance how the NC program is to be
structured and organized, the faster and easier it will be to produce a complete program, which
is clear and free of errors. Clearly structured programs are especially advantageous when
changes have to be made later.
As every part is not identical, it does not make sense to create every program in the same way.
However, the following procedure has shown itself to be suitable in the most cases.
Procedure
1. Prepare the workpiece drawing
– Define the workpiece zero
– Draw the coordinate system
– Calculate any missing coordinates
2. Define the machining sequence
– Which tools are used when and for the machining of which contours?
– In which order will the individual elements of the workpiece be machined?
– Which individual elements are repeated (possibly also rotated) and should be stored in
a subroutine?
– Are there contour sections in other part programs or subroutines that could be used for
the current workpiece?
– Where are zero offsets, rotating, mirroring and scaling useful or necessary (frame
concept)?
Fundamentals
2.3 Creating an NC program
NC programming
50 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0

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Siemens SINUMERIK 804D sl Specifications

General IconGeneral
BrandSiemens
ModelSINUMERIK 804D sl
CategoryControl Systems
LanguageEnglish

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