Siemens sinumerik 840D sl Operating Manual page 356

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Programming technology functions (cycles)

The following insertion modes can be selected – (only for ∇, ∇∇∇ or ∇∇∇ edge):

Predrilled (only for G code)

Approach reference point shifted by the amount of the safety clearance with G0.

Insert vertically in longitudinal groove center:

The tool is inserted to infeed depth in the pocket center.

Note: This setting can be used only if the cutter can cut across center.

Helical(only for G code) insertion on 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 remove the slope caused by insertion.

Depth infeed rate

(only for G code)

Depth infeed rate - (only for insertion, predrilled and perpendicular)

(FZ only for machining surface, face C/Y or FX for peripheral surface C/Y)

Maximum insertion angle – (for insertion with oscillation only)

(only for G code)

Chamfer width for chamfering - (for chamfering only)

Insertion depth of tool tip (abs or inc) - (for chamfering only)

(ZFS for machining surface, face C/Y or XFS for peripheral surface C/Y)

Operating Manual, 07/2010, 6FC5398-8CP40-0BA0

Sinumerik 828d