Siemens Sinumerik 802D sl Programming Manual page 116

Enhanced Level Commands
4.1 Program support functions (1)
Note
1. The appearance of X (U) and X (W) determine the meaning of the data speci-
fied by address P, Q, and R.
2. Through the G76 command with X (U) and Z (W) specification cycle machining
is performed. One edge cutting is performed and the load on the tool tip is redu-
ced when this cycle is applied.
The amount of cutting per cycle is kept constant by assigning the cutting depth
Δd to the first path, and Δdn to the nth path. Corresponding to the sign of each
address, four symmetrical sectors are considered here.
3. The notes on thread cutting are equivalent to those on G32 for thread cutting
and G92 for the thread cutting cycle.
Examples
Multiple thread cutting cycle (G76)
X axis
0
Fig. 4-30
4-116
∅68
∅60.64
6
25 105
Multiple thread cutting cycle (G76)
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
1.8
Z axis
G76 P011060 Q100 R200 ;
G76 X60640 Z25000 P3680 Q1800 F6.0 ;
© SIEMENS AG 2007 All rights reserved
04.07
1.8
3.68