Stock Removal (Cycle952) - Siemens SINUMERIK 840D SL Operating Manual

Hide thumbs Also See for SINUMERIK 840D SL:

Table of Contents

Programming technological functions (cycles)

8.5 Contour turning - only for G code programs

Labels in the

Stock removal (CYCLE952)

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 Section "Programming (Page 418)").

Rounding the contour

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

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.

PRG: Subprogram

LAB1: Label 1

LAB2: Label 2

Machine manufacturer

Please refer to the machine manufacturer's specifications.

Operating Manual, 02/2012, 6FC5398-7CP40-3BA0

Sinumerik 840de sl Sinumerik 828d