HEIDENHAIN 548431-05, User Manual, Page: 352 / 722

Teach-in | Drilling cycles
5
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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