Siemens SINUMERIK 840D Programming Manual page 131

03.96
3
Programming example
Slots2
With this program you can machine 3 circumferential
slots arranged on a circle whose center point is X60
Y60 and radius 42 mm in the XY plane. The
circumferential slots have the following dimensions:
Width 15 mm, angle for slot length 70 degrees,
depth 23 mm. The initial angle is 0 degrees, the
indexing angle is 120 degrees. The slot contours are
machined to a final machining allowance of 0.5 mm,
the safety clearance in infeed axis Z is 2 mm, the
maximum depth infeed is 6 mm. The slots are to be
completely machined. The same speed and feedrate
are used for finishing. Infeed during finishing is
performed straight to the base of the slot.
DEF REAL FFD=100
N10 G17 G90 D1 T10 S600 M3
N20 G0 X60 Y60 Z5
N30 SLOT2 (2, 0, 2, -23, , 3, 70, ->
-> 15, 60, 60, 42, , 120, FFD, ->
-> FFD+200, 6, 2, 0.5)
N40 M30
-> Must be programmed in a single block
 Siemens AG 2000 All rights reserved.
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
3.6 Circumferential slot - SLOT2
Y
60
Definition of variables with value
assignment
Specification of technology values
Approach starting position
Cycle call
Reference plane+SDIS=retraction plane
means: Lower in infeed axis with G0 to
reference plane+SDIS no longer
applicable, parameters VAR, MIDF,
FFP2 and SSF omitted
End of program
Milling Cycles
3
Y
A - B
A
70°
120°
B
X
23
3-131
Z