HEIDENHAIN 548431-05 User Manual page 352

5
Cycle run:
1 Position the spindle to the Spindle angle C (in Machine mode:
machining from current spindle angle)
2 If defined, move at rapid traverse to the Start point drill X1
3 First pass (pecking depth: P)—spot drill at reduced feed rate, if
defined
4 Retract by the Return length B—or to the Start point drill
and advance again to the last pecking depth minus the safety
clearance
5 Next pass (pecking depth: last depth – IB or JB)
6 Repeat 4 to 5 until the End point drill X2 is reached
7 Last drilling pass, depending on Drilling variants V:
Through-drilling reduction:
Drill at programmed feed rate to position X2 – AB
Drill at reduced feed rate to End point drill X2
No through-drilling reduction:
Drill at programmed feed rate to End point drill X2
Remain at end of hole for Period of dwell E if defined
8 Retract
If X1 is programmed, to Start point drill X1
If X1 is not programmed, to Start point X
9 Move to the Tool change point according to the setting in G14
352
Teach-in | Drilling cycles
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017