Siemens SINUMERIK 840DE Operation & Programming Manual page 196

12
Examples
12.3 Example 3: External machining with thread undercuts and grooves
4. Stock removal (roughing)
Result:
5. Stock removal (finishing)
6. Undercut: DIN thread
M40*1.75
(Roughing and finishing)
12-196
•
Press soft key
Stock
•
and enter stock removal parameters for roughing:
removal
T1 F: 0.2 mm/rev
Longitudinal
ß
External
Infeed depth
Finishing allowance
Blank description:
Allowance
Machine relief cuts:
Machine tool angle:
Insert angle
Main cutting edge angle
•
Press soft key
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:
T2 F: 0.1 mm/rev
FR: 0.1 mm/rev S: 160 m/min
D: 3 inc
Ux: 0.2
Cylinder
X : 0
D
No
Yes
α α α α : 80°
β β β β : 93°
S: 220 m/min
No
Yes
α α α α : 35°
β β β β : 93°
Undercut
S: 180 rev/min
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/810D Operator's Guide ManualTurn (BAM) – 08.02 Edition
12
08.02
Uz: 0.1
Z : 2
D
DIN thread
soft
undercut