Siemens SINUMERIK 840D sl Operating Manual page 316

Programming technological functions (cycles)
8.2 Milling
Parameters, G code program
PL Machining plane
Milling direction
RP Retraction plane
SC Safety clearance
F Feedrate
Parameter Description
Machining
∇ (roughing, plane-by-plane or helical)
•
∇∇∇ (finishing, plane-by-plane or helical)
•
∇∇∇ edge (edge finishing, plane-by-plane or helical)
•
• Chamfering
Machining type
Plane-by-plane
•
Machine circular pocket plane-by-plane
Helical
•
Machine circular pocket using helical type
Machining
Single position
•
position
A circular pocket is machined at the programmed position (X0, Y0, Z0).
Position pattern
•
Several circular pockets are machined in a position pattern
(e.g. full circle, pitch circle, grid, etc.).
The reference points refer to the center point of the circular pocket:
X0 Reference point X – (for single position only)
Y0 Reference point Y – (for single position only)
Z0 Reference point Z – (single position only and G Code position pattern)
∅ Diameter of pocket
Z1 Pocket depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ and ∇∇∇
edge)
DXY
Maximum plane infeed
•
• Maximum plane infeed as a percentage of the milling cutter diameter
- (only for ∇ and ∇∇∇)
DZ Maximum depth infeed - (only for ∇, ∇∇∇ and ∇∇∇ Rand)
UXY Plane finishing allowance - (only for ∇, ∇∇∇ and ∇∇∇ edge)
316
Parameters, ShopMill program
T
D
mm F
mm S / V
*
Tool name
Cutting edge number
Feedrate
Spindle speed or constant
cutting rate
Unit
mm
mm
mm
mm
mm
In
%
mm
mm
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
mm/min
mm/tooth
rpm
m/min
Milling