Siemens SINUMERIK 840D sl Operating Manual page 473

Parameter Description
Insertion The following insertion modes can be selected – (only for ∇, ∇∇∇ or ∇∇∇ edge):
● Predrilled (only for G code)
● Vertical
● Helical (only for G code)
● Oscillation
Clamp/release spindle (only for end face C/peripheral surface C, if inserted vertically)
The function must be set up by the machine manufacturer.
(only for ShopTurn)
FZ Depth infeed rate – (for vertical insertion only)
(only for G code)
FZ Depth infeed rate - (only for insertion, predrilled and perpendicular)
(only for ShopTurn)
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 milling cutter radius; otherwise, material will
remain.
EW Maximum insertion angle – (for insertion with oscillation only)
FS Chamfer width for chamfering - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
Turning
Operating Manual, 05/2017, A5E40868721
Approach reference point shifted by the amount of the safety clearance with G0.
ShopTurn: 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.
– 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.
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.
Insertion along helical path:
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.
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 eliminate the inclined insertion path.
Programming technology functions (cycles)
10.4 Milling
*
mm/min
mm/tooth
mm/rev
mm
Degrees
mm
mm
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