Deep-Hole Drilling - Cycle83 - Siemens SINUMERIK 840D sl Operating Manual

Programming a cycle
4.4 Drilling
Parameter
FR
Z0
Z1
DT
1) Parameter description refers to plane G17; plane selection G18 or G19 possible in selection field
(MD 52005: $MCS_DISP_PLANE_MILL)!
4.4.5

Deep-hole drilling - CYCLE83

Function
With the "Deep-hole drilling" cycle, the tool is inserted in the workpiece with the programmed
spindle speed and feedrate in several infeed steps until the depth Z1 is reached. The
following can be specified:
● Number of infeed steps constant or decreasing (via programmable degression factor)
● Optionally chipbreaking with or without lift or stock removal with tool retraction
● Feed factor for 1st infeed for the feed reduction
● Dwell times
● Depth in relation to drill shank of drill tip
Approach/retraction during chipbreaking
1. The tool moves with G0 to safety clearance of the reference point.
2. The tool drills with the programmed spindle speed and feedrate F (F · FD1) until the 1st
3. Dwell time at drilling depth DTB.
4. The tool is retracted by retraction distance V2 for chipbreaking and drills up to the next
5. Step 4 is repeated until the final drilling depth Z1 is reached.
6. Dwell time at final drilling depth DT.
7. The tool retracts to the retraction plane at rapid traverse.
Approach/retraction during stock removal
1. The tool moves with G0 to safety clearance of the reference point.
2. The tool drills with the programmed spindle speed and feedrate F (F · FD1) until the 1st
158
Description
Feedrate during retraction
Reference point Z
Drilling depth (abs) or drilling depth in relation to Z0 (inc)
It is inserted into the workpiece until it reaches Z1.
Dwell time at final drilling depth in seconds
•
Dwell time at final drilling depth in revolutions
•
infeed depth is reached.
infeed depth with programmed feedrate F.
infeed depth is reached.
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Unit
mm/min
mm
mm
s
rev
HMI sl Turning