Boring (Cycle86) - Siemens SINUMERIK 840D sl Operating Manual

Parameter Description
DTS Dwell time for swarf removal in seconds
DT - (only for Dwell time at final depth in seconds
through drilling
"no")
Retraction Retraction to pilot hole depth or retraction plane
FR Retraction in rapid traverse
Direction of spindle
rotation during re‐
traction
SR (only for selec‐ Spindle speed for retraction referred to the drilling speed
ted spindle direc‐
tion of rotation)
10.1.7

Boring (CYCLE86)

Function
With the "Boring" cycle, the tool approaches the programmed position in rapid traverse,
allowing for the retraction plane and safety clearance. It is then inserted into the workpiece at
the feedrate programmed under F until it reaches the programmed depth (Z1). There is an
oriented spindle stop with the SPOS command. After the dwell time has elapsed, the tool is
retracted either with or without lift of the tool.
Note
If, for example, swiveling of mirroring has been performed with CYCLE800 before machining,
the SPOS command must be adapted so that the spindle position acts synchronously with DX
and DY.
Lift
When lifting, define the amount of lift D and the tool orientation angle α.
Note
The "Boring" cycle can be used if the spindle to be used for the boring operation is technically
able to go into position-controlled spindle operation.
Milling
Operating Manual, 05/2017, A5E40868956
Machine manufacturer
Please observe the information provided by the machine manufacturer.
Programming technological functions (cycles)
Value
0.6 s
0.6 s
Pilot hole
depth
M5
10 %
10.1 Drilling
Can be set in SD
343