Drilling Cycle, Preboring (G81) - Siemens Sinumerik 840D sl Programming Manual
Iso milling
Hide thumbs
Also See for Sinumerik 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
Table of Contents
Advertisement
Additional functions
4.1 Program supporting functions
4.1.4
Drilling cycle, preboring (G81)
This cycle can be used for centering and preboring. The retraction motion starts immediately
with rapid traverse rate on reaching the drilling depth Z.
Format
G81 X... Y... R... F... K... ;
X,Y: Drilled hole position
Z: Distance from point R to the bottom of the hole
R: Distance from the initial plane to plane R
F: Cutting feedrate
K: Number of repetitions
Figure 4-7
Restrictions
Changeover of the axes
Before changing over the drilling axis, one must first deselect the fixed cycle.
Drilling
The drilling cycle is executed only if an axis motion, e.g. is programmed with X, Y, Z or R.
R
Always program R only in one block with an axis motion, otherwise the programmed values
are not stored modally.
84
Drilling cycle, preboring (G81)
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling
- Quick Links:
- Display of the G Code
- M Functions
- G Code Table
Hide quick links:
Advertisement
Table of Contents
