Dtb (Dwell Time) - Siemens SINUMERIK 840D Programming Manual

Drilling Cycles and Drilling Patterns
2
2.1 Drilling cycles
Description of parameters
See Section 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
27 mm at position X24, Y15 in the XY plane with
cycle CYCLE82.
The dwell time programmed is 2 s, the safety
clearance in the drilling axis Z is 4 mm.
N10 G0 G90 F200 S300 M3
N20 D3 T3 Z110
N30 X24 Y15
N40 CYCLE82 (110, 102, 4, 75, , 2)
N50 M30
2-56
Z
Y
24
Specification of technology values
Traverse to retraction plane
Traverse to drilling position
Cycle call with absolute final drilling depth
and safety clearance
End of program
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
03.96
08.97
2
G0
G1
G4
RTP
RFP+SDIS
RFP
X
DP=RFP-DPR
Y
A - B
A
B
X
Z
75
102
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