Siemens SINUMERIK 840D sl Operating Manual page 417

Computerized numerical controllers

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Table of Contents

Approach/retraction

1. At the height of the retraction plane, the tool approaches the center point of the semicircle

2. It is then inserted into the workpiece at the machining feedrate, allowing for the maximum

3. When the first circumferential groove is finished, the tool moves to the retraction plane at

4. The next circumferential groove is approached along a straight line or circular path and

5. The rapid traverse feedrate for positioning on a circular path is specified in a machine

Machining type

You can select the machining mode for milling the circumferential slot as follows:

● Finishing of edge

Operating Manual, 02/2012, 6FC5398-8CP40-3BA0

at the end of the groove at rapid traverse and adjusts to the safety distance.

Z direction infeed (for face machining), X direction infeed (for peripheral machining), and

the finishing allowance. Depending on the machining direction (up-cut or down-cut), the

circumferential groove is machined in a clockwise or counterclockwise direction.

rapid traverse.

then machined.

data element.

During roughing, the individual planes of the slot are machined one after the other from

center point of the semicircle at the end of the slot until depth Z1 is reached.

In "Finishing" mode, the edge is always machined first until depth Z1 is reached. The slot

edge is approached on the quadrant, which joins the radius. In the last infeed, the base is

finished from the center point of the semicircle to the end of the slot.

Edge finishing is performed in the same way as finishing, except that the last infeed

(finish base) is omitted.

Chamfering involves edge breaking at the upper edge of the circumferential groove.

The part program or ShopTurn program to be processed has been

created and you are in the editor.

Press the "Milling" softkey.

Press the "Groove" and "Circumferential groove" softkeys.

The "Circumferential Groove" input window opens.

Programming technology functions (cycles)

Sinumerik 828d turning