01.99 4 Machine
© Siemens AG 1999 All Rights Reserved 6FC5198-6AA60-0BP1
SINUMERIK 840C, OEM Version for Windows (BA)
4-19
4.2.4.7 Finish thread (option)
Press the ETC key to expand the softkey bar.
With this function you can load a thread that has been already cut and finish it.
Only threads with constant pitch can be finished.
• Load workpiece.
• Position the tool on the thread in such a way that the tip of the tool
corresponds to the thread root.
•
Press the ‘‘STORE POSIT." softkey.
• The "Offset angle" and the "Starting angle (G92A)" are thus set to zero.
• NC program start (Automatic or MDA).
The offset angle is calculated and allowed for with the first thread set. The
offset angle is considered until it is set to zero by pressing the DELETE
OFFSET ANGLE softkey.
Tool
Turning part
Fig. 4-3 Finish thread
The offset angle is not retained after POWER ON.
Maximum value: 359.99999 degrees
Resolution: 10
-5
degrees, without sign
Finish/Set-
up thread
Operating
sequence
Note
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