HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 333)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 333
4.22 Dr
illing cy
cles
Cycle run
1
 Hole without contour description: Tool is located at the
starting point (safety distance from the bore hole).
 Hole with contour description:: Tool moves at rapid traverse
to the starting point:
 RB not programmed: Moves up to the safety clearance
 RB programmed: Moves to the position RB and then to the
safety clearance
2 Spot drilling. Feed rate reduction depending on V
3 Drills the hole in several passes
4 Through drilling. Feed rate reduction depending on V
5 Retraction at rapid traverse or feed rate, depending on D.
6 Return position depends on RB:
 RB not programmed: Retraction to the starting point
 RB programmed: Retraction to the position RB