Siemens SINUMERIK 840D Programming Manual page 68

2
Drilling Cycles and Drilling Patterns
2.1 Drilling cycles
Description of parameters
See Subsection 2.1.2. (Drilling, Centering –
CYCLE81) for a description of parameters RTP,
RFP, SDIS, DP, DPR
DTB (dwell time)
Parameter DTB is the dwell time at the final drilling
depth (chip breaking) in seconds.
Programming example
Boring_counterboring
This program machines a single hole to a depth of
27mm at position X24, Y15 in the XY plane with
cycle CYCLE82.
The dwell time programmed is 2 sec, the safety
distance in the drilling axis Z is 4mm.
N10 G0 G90 F200 S300 M3
N20 D1 T3 Z110
N21 M6
N30 X24 Y15
N40 CYCLE82 (110, 102, 4, 75, , 2)
N50 M30
2-68
Z
Y
24
Specification of technology values
Traverse to retraction plane
Traverse to drilling position
Cycle call with absolute final drilling depth
and safety distance
End of program
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
2
03.96
08.97
G0
G1
G4
RTP
RFP+SDIS
RFP
X
DP=RFP-DPR
Y A - B
A
B
X
Z
75
102
© Siemens AG, 2002. All rights reserved