Fixed Cycles: Drilling
3.8 UNIVERSAL PECKING (Cycle 205, DIN/ISO: G205)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Q211 Dwell time at the depth?: Time in seconds
that the tool remains at the hole bottom. Input range
0 to 3600.0000
Q379 Deepened starting point? (incremental
with respect to Q203 SURFACE COORDINATE,
takes Q200 into account): Starting position
of actual drilling. The TNC moves at Q253 F
PRE-POSITIONING to the value Q200 SET-UP
CLEARANCE above the deepened starting point.
Input range 0 to 99999.9999
Q253 Feed rate for pre-positioning?: Defines the
traversing speed of the tool when re-approaching
Q201 DEPTH after Q256 DIST FOR CHIP BRKNG.
This feed rate is also in effect when the tool is
positioned to Q379 STARTING POINT (not equal
0). Entry in mm/min. Input range 0 to 99999.9999
alternatively FMAX, FAUTO
Q208 Feed rate for retraction?: Traversing speed
of the tool in mm/min when retracting after the
machining operation. If you enter Q208 = 0, the
TNC retracts the tool at the feed rate Q206. Input
range 0 to 99999.9999, alternatively FMAX,FAUTO
Q395 Diameter as reference (0/1)?: Select
whether the entered depth is referenced to the tool
tip or the cylindrical part of the tool. If the TNC is
to reference the depth to the cylindrical part of the
tool, the point angle of the tool must be defined in
the T ANGLE column of the tool table TOOL.T.
0 = Depth referenced to the tool tip
1 = Depth referenced to the cylindrical part of the
tool
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