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10.04 Programming with ShopMill
3.7 Drillin
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ï›™ Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition 3-231
3.7.1 Centering
The tool is moved in rapid traverse to the position to be centered,
allowing for the retraction plane and safety clearance. The tool is
inserted into the workpiece at programmed feedrate (F) until it
reaches Z1 or until the surface diameter is the correct size. When the
dwell time expires, the tool is retracted in rapid traverse to either the
retraction plane or the safety clearance depending on the setting in
parameter "Retraction position pattern". You will find parameter
"Retraction position pattern" in the program header or under "Settings"
in the "Miscellaneous" menu.
Centering
îš¾ Press the "Drilling" and "Centering" softkeys.
Call help display with
the
key
Help display for centering at depth Help display for centering on diameter
Parameters Description Unit
T, D, F, S, V See Sec. "Programming the tool, offset value and spindle speed".
Diameter
Tip
The tool is inserted into the workpiece until the diameter on the surface is the correct
size. The angle for the center drill entered in the tool list is applied in this case.
The drill is inserted into the workpiece until the programmed insertion depth is
reached.
∅
Z1
It is inserted into the workpiece until the diameter is correct.
It is inserted into the workpiece until it reaches Z1.
mm
mm
Z0 Height of workpiece; Z0 is specified in the position pattern ("Positioning" softkey). mm
DT Dwell time for relief cut s
rev
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