Siemens SINUMERIK 840D sl Operating Manual page 464

Programming technological functions (cycles)
10.4 Turning - milling/turning machine
Parameter
αC
(for ShopMill program)
Hirth joint (for ShopMill
program)
Tool
Preferred direction (for
ShopMill program)
Machining
Position
464
Description
Rotational position for a pole position
● Round off to the next Hirth joint for a minimum beta difference
● Round beta up
● Round beta down
Note:
For machines with a Hirth joint
Tool tip when swiveling
● Tracking
The position of the tool tip is maintained during swiveling.
● No tracking
The position of the tool tip is not maintained during swiveling.
Preferred direction of the swivel axis for several possible alignments of the machine
● ∇ (roughing)
● ∇∇∇ (finishing)
Stock removal position:
Unit
Degrees
Operating Manual, 05/2017, A5E40868956
Milling