Deep Hole Drilling - Siemens SINUMERIK 840D Programming Manual

Drilling Cycles and Drilling Patterns
2
2.1 Drilling cycles
Programming example

Deep hole drilling

This program executes the cycle CYCLE83 at
positions X80 Y120 and X80 Y60 in the XY plane.
The first hole is drilled with a dwell time zero and
machining type chip breaking.
The final drilling depth and the first drilling depth are
entered as absolute values. In the second cycle call, a
dwell time of 1 s is programmed. Machining type swarf
removal is selected, the final drilling depth is relative to
the reference plane.
The drilling axis in both cases is the Z axis.
The drilling stroke is calculated on the basis of a
degression factor and must not become shorter than
the minimum drilling depth of 8 mm.
DEF REAL RTP=155, RFP=150, SDIS=1,
DP=5, DPR=145, FDEP=100, FDPR=50,
DAM=20, DTB=1, FRF=1, VARI=0,
_VRT=0.8, _MDEP=10, _DIS1=0.4
N10 G0 G17 G90 F50 S500 M4
N20 D1 T42 Z155
N30 X80 Y120
N40 CYCLE83 (RTP, RFP, SDIS, DP, ,->
-> FDEP, , DAM, , , FRF, VARI, , , _VRT)
N50 X80 Y60
N55 DAM=-0.6 FRF=0.5 VARI=1
N60 CYCLE83 (RTP, RFP, SDIS, , DPR, , ->
-> FDPR, DAM, DTB, , FRF, VARI, , _MDEP,
-> , , _DIS1)
N70 M30
-> Must be programmed in a single block
2-64
Y
80
Definition of parameters
Specification of technology values
Traverse to retraction plane
Traverse to first drilling position
Cycle call, depth parameter with absolute
values
Traverse to next drilling position
Assignment of value
Cycle call with relative data for final
drilling depth and 1st final drilling depth;
the safety clearance is 1 mm; the
feedrate is 0.5
End of program
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
03.96
04.00
2
Y
A - B
A
B
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