HEIDENHAIN MANUALPLUS 620 - Page 301

HEIDENHAIN MANUALplus 620 301
4.22 Drilling and Boring Cycles
Cycle run
1  Hole without contour definition: 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 Retract 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