Stock Removal (Cycle952) - Siemens sinumerik 840D sl Operating Manual

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Programming technology functions (cycles)

8.3 Contour turning

Contour selection

Contour name

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 unmachined-part contour. You must define an

unmachined-part contour as a separate closed contour in advance of the finished-part

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

The part program to be executed has been created and you are in the

Press the "Contour turning" softkey.

Press the "Contour" and "Contour call" softkeys.

The "Contour Call" input window opens.

Assign parameters to the contour selection.

Contour name

Labels in the subprogram

CON: Contour name

LAB1: Label 1

LAB2: Label 2

PRG: Subprogram

LAB1: Label 1

LAB2: Label 2

Operating Manual, 07/2010, 6FC5398-8CP40-0BA0

Sinumerik 828d