HEIDENHAIN MANUALplus 4110 - Manual (Page 194)

194 4 Cycle Programming
4.7 Dr
illing Cy
cles
Drilling radial:
 X1 starting point of hole —default: Drilling starts from position X
 X2 end point of hole
Cycle run
1 Position spindle to "spindle angle C" (in Manual mode, machining
starts from the current spindle angle).
2 If defined, move at rapid traverse to
„ Z1 (axial).
„ X1 (radial).
3 First pass (pecking depth: P)—Drill with reduced feed rate, if
defined.
4 Retract by "B"—or to starting point of hole and advance again to last
pecking depth minus safety clearance.
5 Next pass (pecking depth: "last depth – IB" or JB).
6 Repeat 4 to 5 until end point Z2/X2 is reached.
7 Last pass—depending on "V":
„ Drill at programmed feed rate to
End point Z2 (axial).
End point X2 (radial).
„ Remain at end of hole for dwell time "E," if defined.
or
„ Drill at programmed feed rate to position
Z2 – AB (axial).
X2 – AB (radial).
„ Drill at reduced feed rate to
End point Z2 (axial).
End point X2 (radial).
8 If X1/Z1 has been defined, retract to
„ Starting point of hole Z1 (axial).
„ Starting point of hole X1 (radial).
If X1/Z1 has not not been defined, retract to
„ Starting point Z (axial).
„ Starting point X (radial).
„ If "AB" and "V" are programmed, the feed rate is reduced
by 50% during both pre-drilling and through-boring.
„ MANUALplus uses the tool parameter "driven tool" to
determine whether the programmed spindle speed and
feed rate apply to the spindle or the driven tool.