Siemens SINUMERIK 802D sl Wartungshandbuch PDF herunterladen (Seite 61)

Manual machining

5.4 Manual machining using cycles (functions)

Manual Machine Plus Turning

Programming and Operating Manual, 06/2009, 6FC5398-6CP10-1BA0

You can access the "Manual center drilling" function by pressing the softkey "Center drilling"

in the drilling cycle overview.

Alternatively, you can select "Center drilling" with <Cursor keys> and activate with the input

key.

Figure 5-23 Drilling centric

Parameter

Parameter Description

Reference z0 Start position for the drill hole in the longitudinal axis

(absolute position of Z axis)

Drilling depth l Enter the depth of the drill hole to be created, taking the start position for the drill hole

("Refer. z0") as the starting point. The drilling direction is always towards the chuck and

cannot be reversed.

Max. infeed Max Maximum infeed value for the first infeed in the longitudinal axis

Min. infeed Min Minimum infeed value in the longitudinal axis, which must be observed for the final infeed.

Degression factor f Degression factor: the value by which the second and all subsequent infeeds in the

longitudinal axis are multiplied. The following general rule applies: An input value greater

than 1 increases the infeed depth with each infeed, an input value of less than 1 reduces it

with each infeed. To switch off degression, enter 1 (or 0) here.

Dwell time t Dwell time on reaching the drilling depth

Return travel

distance

R Return travel distance in the longitudinal axis for chip breaking. This parameter is not

displayed if "deswarfing" is selected.

Chip breaking / Deswarfing With this toggle field you can select between machining with "chip breaking" or

"deswarfing". With "chip breaking", on reaching the corresponding infeed depth the tool is

retracted in the longitudinal axis by a defined value (chip breaking) before the next infeed.

With "deswarfing" on the other hand, the tool is withdrawn from the drill hole on reaching the

corresponding infeed depth. The next infeed then continues as usual. The current selection

is shown as a graphic in the left-hand section of the screen. If "deswarfing" is selected, no

value is shown for the "return travel".

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Siemens SINUMERIK 802D sl Wartungshandbuch Seite 61