Siemens SINUMERIK 840DE Operation & Programming Manual page 203

12
08.02
12.4 Example 4: External machining with thread undercut and groove
5. Stock removal (finishing)
6. Undercut: DIN thread
M40*1.75
(Roughing and finishing)
Result
7. Groove with tapers/radii
(roughing)
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition
Stock
•
and enter stock removal parameters for finishing:
removal
T2 F: 0.1 mm/rev
Longitudinal
ß
External
Machine relief cuts:
Machine tool angle:
Insert angle
Main cutting edge angle
• Press soft key
• Call CYCLE mode and press the
keys
• Set parameters:
T5 F: 0.1 mm/rev
Position: Set cutting position
+
Thread lead
Reference point
Plunge angle
Cross-feed in X
Infeed
Finishing allowance
• Press soft key
• Call
STOCK REMOVAL mode and press the
• Set parameters:
T3
Set position and reference point
Reference point
S: 200 m/min
Yes
Yes
α α α α : 35°
β β β β : 93°
Undercut
S: 500 rev/min
External
P: 1.75 mm/rev
X0: 16 Z0: -20
α α α α : 30
V: 17
D: 1 inc
U: 0 inc
F: 0.12 mm/rev S: 180 m/min
X0: 55 Z0: -63.5
12
Examples
DIN thread
soft
undercut
soft key
12-203