Siemens SINUMERIK 840D sl Operating Manual page 439

Procedure for thread chain
Parameters, G code program
PL Machining plane
Parameter
Machining
Infeed (only for ∇ and ∇
+ ∇∇∇)
Thread
X0
Z0
P0
X1 or X1α
Z1
Milling
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
1. The part program to be executed has been created and you are in the
editor.
2. Press the "Turning" softkey.
3. Press the "Thread" softkey.
The "Thread" input window opens.
4. Press the "Thread chain" softkey.
The "Thread Chain" input window opens.
Description
∇ (roughing)
•
∇∇∇ (finishing)
•
∇ + ∇∇∇ (roughing and finishing)
•
Linear:
•
Constant cutting depth infeed
Degressive:
•
Constant cutting cross-section infeed
Internal thread
•
External thread
•
Reference point X ∅ (abs, always diameter)
Reference point Z (abs)
Thread pitch 1
Intermediate point 1 X ∅ (abs) or
•
Intermediate point 1 in relation to X0 (inc) or
•
Thread taper 1
•
Incremental dimensions: The sign is also evaluated.
Intermediate point 1 Z (abs) or
•
Intermediate point 1 in relation to Z0 (inc)
•
Programming technological functions (cycles)
8.4 Turning - only for G code programs
Unit
mm
mm
mm/rev
in/rev
turns/"
MODULUS
mm
Degrees
mm
439