Siemens SINUMERIK 840D sl Operating Manual page 359

Parameter Description
Insertion The following insertion modes can be selected:
Predrilled: (only for G code)
•
Approach reference point shifted by the amount of the safety clearance with G0.
Perpendicular:
Depending on the effective milling tool width (milling tool diameter x DXY[%]) or
DXY [mm] – at the pocket center or at the pocket edge, is moved to the infeed
depth.
ShopMill:
–
–
G code:
The tool is inserted to the infeed depth at the reference point "inside left".
Note: This setting can be used only if the cutter can cut across center.
Helical: Insertion on helical path (only for G code)
•
The cutter center point traverses along the helical path determined by the radius
and depth per revolution (helical path). If the depth for one infeed has been
reached, a full longitudinal slot is machined to eliminate the inclined insertion path.
Oscillating: Insert with oscillation along center axis of longitudinal slot
•
The cutter center point oscillates along a linear path until it reaches the depth
infeed. When the depth has been reached, the path is traversed again without
depth infeed in order to remove the slope caused by insertion.
FZ Depth infeed rate – (for vertical insertion only)
(only for G code)
FZ Depth infeed rate – (for vertical insertion only)
(only for ShopMill)
EP Maximum pitch of helix – (for helical insertion only)
(only for G code)
ER Radius of helix – (for helical insertion only)
(only for G code) The radius cannot be any larger than the cutter radius; otherwise, material will remain.
EW Maximum insertion angle - (for insertion with oscillation only)
FS Chamfer width for chamfering (inc) - (for chamfering only),
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
Milling
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
At the edge of the longitudinal slot ("inside left"): Effective milling tool width >=
half the slot width.
At the longitudinal slot center: Effective milling tool width < half the slot width.
Programming technological functions (cycles)
8.2 Milling
Unit
mm
*
mm/min
mm/tooth
mm/rev
mm
Degrees
mm
mm
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